DXCO3 Q3 2026 Earnings Report

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RESULTADOS 3T26 3Q26 EARNINGS RELEASE Adjusted and Recurring Pro Forma EBITDA reached R$ 783.6 million in 3Q26, up 9.8% from 2Q26, including Dexco's 49.0% share of LD Celulose's results through the equity method. Total Free Cash Flow reached R$ 635.5 million in 3Q26 and R$ 991.2 million year -to-date, supported by stronger operating cash generation, working capital release and non - recurring cash inflows, contributing to a reduction in financial leverage to 2.36x Net Debt/EBITDA. WOOD Shipment volume reached 775.3 thousand m³ in 3Q26, down 2.2% from 3Q25, amid moderating domestic market demand and a focus on pricing and product mix. Adjusted and Recurring EBITDA totaled R$ 535.2 million, with a 32.6% margin, reflecting price increases, product mix and the contribution from forestry businesses. CERAMIC TILES Shipment volume totaled 3,725 thousand units in 3Q26, down 12.5% from 3Q25 and up 2.8% from 2Q26, reflecting the prioritization of profitability over volume and greater commercial selectivity. Adjusted and Recurring EBITDA reached R$ 57.1 million, reflecting the strategy of prioritizing profitability. METALS & SANITARY WARE Shipment volume reached 4,524 thousand m² in 3Q26, up 6.3% from 3Q25 and 7.2% from 2Q26, reflecting the contribution of the dedicated sales structure amid continued pricing pressure. Adjusted and Recurring EBITDA was negative R$ 6.8 million, as operating performance remained insufficient to offset the decline in prices. DISSOLVING WOOD PULP Adjusted and Recurring Pro Forma EBITDA reached R$ 403.8 million in 3Q26, with a 49.5% margin, considering 100% of LD Celulose's operations. The recovery in dissolving wood pulp prices throughout the quarter supported a 62.8% increase in EBITDA, despite the appreciation of the Brazilian real during the period. MARKET CAP GRI 102-7 R$ 5,275 million Shares 919.034.196 Closing Share Price R$ 5,81 Treasury Shares 11.163.524 November 5, 2026 09:00 a.m (BRT)/08:00 a.m(EDT) Conference Call Click here Investors Relations LIVE WEBCAST https://ri.dex.co/ investidores@dex.co

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RESULTADOS 3T26 MACROECONOMIC AND MARKET ENVIRONMENT The third quarter of 2026 remained marked by a challenging macroeconomic environment, with clearer signs of a slowdown in economic activity and household consumption, despite the continuation of the interest rate easing cycle. Internationally, the IMF rais ed its global growth forecast for 2026 to 3.1%, while lowering its projections for Brazil to 2.2% in 2026 and 1.9% in 2027, citing high interest rates, a lower fiscal contribution and external uncertainty. In Brazil, the IPCA inflation index rose again in September (0.82%), following a temporary decline in August, reaching 4.58% over the preceding 12 months, above the midpoint of the inflation target. The October preliminary inflation index (IPCA -15) slowed to 0.32%. The Central Bank's Monetary Policy Committee (Copom) reduced the Selic rate to 14.00% per annum in August and 13.75% per annum in September, totaling a 1.25 percentage -point reduction year -to-date, while maintaining a restrictive monetary policy stance. Economic activity lost momentum during the quarter. The IBC -Br economic activity index declined 0.6% in the three - month period ended August, while durable consumer goods production and broad retail sales also decreased in August, following a decline in ret ail sales in July. The labor market remained resilient, with the unemployment rate reaching 5.2% in the quarter ended September, the lowest level for the period in the historical series, although formal job creation slowed at the margin. Household credit c onditions remained restrictive, with delinquency and indebtedness at record levels, continuing to constrain home renovation decisions, which are particularly sensitive to consumer confidence. In October, consumer and construction confidence indicators show ed improved expectations, although assessments of current conditions reached their lowest levels in several years. The residential real estate market continued to be supported by the affordable housing segment, although performance became more uneven and showed signs of slowing at the margin. According to CBIC, new home sales increased 5.4% in the first half of the year, with the Minha Casa, Minha Vida (MCMV) program reaching a record share. More recent data suggest this trend continued into the third quarter: in the city of São Paulo, according to Secovi -SP, sales increased 36.9% year-over-year in August, with MCMV accounting for approximately 70% of units sold. However, sales value declined 12.8%, while the estimated inventory absorption period for the mid- and high-end segment reached 13 months, compared with eight months for MCMV. Mortgage lending funded by the Brazilian Savings and Loan System (SBPE) increased 30.3% between January and September, according to Abecip, but declined 19.7% in September compared with August, with the number of financed units falling 24.4% year -over-year. In the construction sector, the creation of 207.4 thousand formal jobs between January and September indicates that construction activit y remained resilient, although FGV's confidence index recorded its weakest assessment of current conditions since 2021 in October, alongside a weakening order backlog in residential construction. Within the building materials supply chain, the recovery progressed more slowly than expected. The ABRAMAT Index recorded a 3.8% increase in inflation-adjusted revenue in September compared with August, but a 1.1% decline versus

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RESULTADOS 3T26 September 2025, bringing the year -to-date contraction to 2.5%. Finishing materials remained under greater pressure than basic materials, with accumulated declines of 2.8% and 2.2%, respectively, reflecting the impact of high interest rates and household indebtedness on the home renovation retail market. Against this backdrop, ABRAMAT revised its 2026 forecast from 0.5% growth to a 0.8% contraction. Housing programs and home improvement financing facilities remain potential demand drivers, although their impact on finishing materials has so far been limited. In the furniture industry, market conditions remained mixed. ABIMÓVEL reported a 2.3% decline in furniture and mattress production and a 2.4% decrease in retail sales volumes between January and July, although nominal industry revenue increased 3.4%. Industry exports decreased 6.7% between January and August, pressured by tariffs on sales to the United States, while imports remained heavily concentrated in China, which accounted for approximately three -quarters of imported volumes year-to-date, increasing competitive pressure on domestic manufacturers. Judicial reorganization filings by major furniture retailers heightened concerns about credit risk across the supply chain. Internally, the Company continues to observe solid demand for wood panels, supported by consistent order books and retail sell-out. In this context, we begin our analysis by business division: Ceramic Tiles Division : Market conditions remained challenging, with weak demand, significant idle production capacity and elevated inventories across the supply chain. This environment sustained intense pricing pressure, with manufacturers pursuing more aggressive commercial strategies gaining market share. ANFACER is currently reviewing its industry statistical database. Accordingly, the Company has decided not to update the association's market indicators in this report. These indicators will be reinstated once the review is completed. Metals and Sanitary Ware Division : The market remained in contraction year -to-date, despite signs of sequential improvement. According to internal analyses based on data through August, the Metals market declined 5.7% in value compared with the same period of 2025, with a gradual recovery t hroughout the quarters, while the Sanitary Ware market, which is more exposed to discretionary consumption, declined 8.1%. The normalization expected for the second half of the year has progressed more slowly than anticipated. Pressure remains concentrated in retail, the industry's main distribution channel, while the construction project channel was the only one to grow in both categories, increasing 6.5%. In Sanitary Ware, the shift toward lower-priced products intensified, with lower-value-added segments gaining share. Despite this competitive environment, the Company increased its market share in both Metals and Sanitary Ware year-to-date. Wood Division: The wood panels market moderated in the third quarter, following a first half characterized by strong inventory replenishment, during which some purchases were brought forward in anticipation of price increases and higher input costs. According to industry data, the domestic market contracted approximately 3% compared with 3Q25, while remaining up 2.8% year-to-date. The export market continued to face pressure from international freight costs and tariffs, with a

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RESULTADOS 3T26 19% decline year-to-date, redirecting volumes toward the domestic market. Nevertheless, retail sell-out of wood panels increased compared with the previous quarter, outpacing manufacturers' replenishment volumes, indicating inventory adjustments along the supply chain rather than a weakening of end -market demand. Price increases implemented throughout the year became fully established during the quarter, while chemical input costs showed signs of easing following their first-half peak. Dissolving Wood Pulp: The market experienced a price recovery throughout the quarter, with benchmark prices in China exceeding US$ 800 per tonne during 3Q26. Conversely, the appreciation of the Brazilian real against the US dollar reduced revenue translated into Brazilian reais , while ocean freight and energy costs remained under pressure due to conflicts in the Middle East. Dexco's Operating Performance : Despite the more challenging macroeconomic environment, characterized by high interest rates, selective consumption and slowing residential renovation activity, Dexco maintained discipline over the business levers within its control during the third quarter of 2026, with differentiated performance across its divisions. In the Wood Division, wood panels performance was supported by pricing and product mix, despite lower shipment volumes, and reinforced by the contribution from operations in Colombia and forestry businesses, absorbing a one-off credit-related impact associ ated with a customer in the furniture industry. In Metals and Sanitary Ware, prioritizing profitability over volume preserved the margin level achieved in the previous quarter, alongside year -to-date market share gains. In Ceramic Tiles, the Division's dedicated sales structure contributed to the recovery in shipment volumes, while the Company continued to reduce inventories by keeping production below sales volumes. Industry pricing pressure, however, caused Adjusted and Recurring EBITDA to return to slightly negative territory, consistent with the cautious outlook communicated in the previous quarter. At LD Celulose, the recovery in prices and the absence of a scheduled maintenance shutdown during the quarter, which took place in October, supported the improvement in Adjusted and Recurring EBITDA. This performance reflects progress in the initiatives under the Company's control, including commercial discipline, operational efficiency and portfolio management, against a market backdrop that continues to require caution, particularly in Ceramic Tiles and regarding the risk of weaker consumption in lower -value-added Metals and Sanitary Ware categories. At the beginning of 4Q26, the Company also advanced structural portfolio decisions, as detailed in the respective sections of this report. Dexco remains focused on portfolio profitability, operational efficiency, cash generation and debt reduction.

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RESULTADOS 3T26 CONSOLIDATES FINANCIAL SUMMARY (1) Pro Forma figures reflect adjustments for non -recurring items, as detailed in the Appendix to this report. (2) EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization): an operating performance measure calculated in accordance with CVM Resolution No. 156/2022. (3) Adjusted and Recurring EBITDA: calculated based on EBITDA, adjusted for non -cash accounting items and excluding extraordinary items, as reconciled in this report. (4) Extraordinary items are detailed in the Appendix to this report. (5) Includes Dexco's share of LD Celulose's results. (6) Current Ratio: Current Assets divided by Current Liabilities. (7) Net Debt: Total Financial Debt less Cash. (8) Financial Leverage: Net Debt divided by recurring EBITDA for the last twelve months, adjusted for non -cash accounting items. (9) ROE (Return on Equity): annualized Net Income divided by Average Shareholders' Equity. (10) Earnings per Share: profit attributable to the Company's shareholders divided by the weighted average number of outstanding common shares, excluding treasury shares. In BRL '000 3Q26 3Q25 % 2Q26 % 9M26 9M25 % Highlights Volume shipped Deca (‘000 items) 3.725 4.259 -12,5% 3.625 2,8% 11.158 12.678 -12,0% Volume shipped Ceramic tiles (m²) 4.524.311 4.256.927 6,3% 4.221.453 7,2% 12.401.929 12.545.643 -1,1% Volume shipped Wood (m³) 775.289 793.033 -2,2% 791.701 -2,1% 2.282.341 2.265.166 0,8% Consolidated Net Revenue 2.335.955 2.128.017 9,8% 2.231.538 4,7% 6.585.998 6.152.223 7,1% Consolidated Net Revenue - Pro Forma 2.335.955 2.128.017 9,8% 2.231.538 4,7% 6.585.998 6.152.223 7,1% Gross profit 565.120 490.130 15,3% 549.993 2,8% 1.668.879 1.423.079 17,3% Gross profit - Pro Forma (1) 601.122 530.664 13,3% 568.264 5,8% 1.723.152 1.522.068 13,2% Gross margin 24,2% 23,0% 24,6% 25,3% 23,1% Gross margin - Pro Forma (1) 25,7% 24,9% 25,5% 26,2% 24,7% EBITDA according to CVM No. 527/12 (2) 420.742 474.775 -11,4% 587.560 -28,4% 1.605.469 1.544.962 3,9% EBITDA Mg CVM No. 527/12 18,0% 22,3% 26,3% 24,4% 25,1% Adjustments for non-cash events (22.364) (6.308) 254,5% (40.723) -45,1% (101.521) (119.393) -15,0% Non-recurring events (3) 189.296 (22.023) -959,5% 28.671 - 217.967 28.050 677,1% Dissolving Wood Pulp (2.236) (1.419) 57,6% (28.120) -92,0% (111.131) (220.292) -49,6% Adjusted and Recurring EBITDA (4) 585.438 445.025 31,6% 547.388 7,0% 1.610.784 1.233.327 30,6% Adjusted and Recurring EBITDA margin (4) 25,1% 20,9% - 24,5% - 24,5% 20,0% - Adjusted and Recurring Pro Forma EBITDA (including Dexco's share of LD Celulose) (5) 783.626 566.522 38,3% 713.725 9,8% 2.155.863 1.879.900 14,7% Net Income (142.228) 14.192 -1102,2% 14.880 -1055,8% (55.436) 111.334 -149,8% Recurring Net Income (1)(3) (5.503) (42.756) -87,1% 33.803 -116,3% 100.212 70.983 41,2% Recurring Net Margin (1)(3) -0,2% -2,0% 1,5% 1,5% 1,2% INDICATORS Current ratio (5) 2,00 1,33 50,4% 1,98 1,0% 2,00 1,33 50,4% Net debt (6) 4.782.648 5.585.149 -14,4% 5.135.105 -6,9% 4.782.648 5.585.149 -14,4% Net debt / EBITDA LTM(7) 2,36 3,48 -32,2% 2,72 -13,3% 2,36 3,48 -32,2% Average Shareholders' equity 7.252.168 7.013.231 3,4% 7.204.330 0,7% 7.252.168 7.013.231 3,4% ROE (8) -7,8% 0,8% 0,8% -1,0% 2,1% Recurring ROE -0,3% -2,4% 1,9% 1,8% 1,3% SHARES Earnings per share (BRL) (9) (0,1784) 0,0134 -1431,3% (0,1095) 62,9% (0,1339) 0,1095 -222,3% Closing share price (BRL) 5,81 5,80 0,2% 4,97 16,9% 5,81 5,80 0,2% Net equity per share (BRL) 7,50 8,32 -9,9% 7,63 -1,7% 7,50 8,32 -9,9% Treasury Shares 11.163.524 10.161.397 9,9% 11.163.524 0,0% 11.163.524 10.161.397 9,9% Market Cap (BRL1.000) 5.274.729 4.700.348 12,2% 4.512.117 16,9% 5.274.729 4.700.348 12,2%

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RESULTADOS 3T26 NET REVENUE In the third quarter of 2026, Consolidated Net Revenue reached R$ 2,336.0 million, up 9.8% compared with 3Q25. This performance primarily reflects the Wood Division, which benefited from the cumulative impact of price increases, a higher- value-added product mix and the contribution from forestry businesses. In Metals and Sanitary Ware, higher net revenue per unit largely offset lower shipment volumes, consistent with the strategy of prioritizing profitability over volume. In Ceramic Tiles, the recovery in s hipment volumes was not yet sufficient to offset pricing pressure in an industry environment characterized by significant idle capacity. By division, net revenue increased 16.2% in Wood, while declining 2.1% in Metals and Sanitary Ware and 5.2% in Ceramic Tiles compared with 3Q25. Net revenue per unit increased in Wood (+18.9%) and Metals and Sanitary Ware (+11.9%) year-over-year, reflecting price increases and a more favorable product mix. In Ceramic Tiles, net revenue per unit declined 10.8%, highlighting the continued competitive pressures in the industry. On a sequential basis, Consolidated Net Revenue increased 4.7% compared with 2Q26, with growth across all three divisions. Wood net revenue increased 4.7%, as higher net revenue per unit (+6.9%) more than offset lower shipment volumes ( -2.1%). Metals and Sanitary Ware recorded 5.3% growth, combining a 2.8% increase in shipment volumes with a 2.5% increase in net revenue per unit. Ceramic Tiles reported 3.3% growth, driven by a 7.2% increase in shipment volumes. This increase reflects the initial effects of the Division's dedicated sales structure and revenue management initiatives across sales channels, although net revenue per unit declined 3.6% during the period. Domestic Net Revenue totaled R$ 1,931.5 million in the quarter, up 9.7% compared with 3Q25, while Export Net Revenue reached R$ 404.4 million, an increase of 9.9% on the same comparison basis. The domestic market remained the main driver of consolidated revenue, particularly in Wood, where domestic revenue increased 17.8%, supported by pricing and product mix. In Metals and Sanitary Ware, domestic revenue declined 2.5%, with lower shipment volumes partially offset by higher net revenue per unit. BRL '000 - consolidated 3Q26 3Q25 % 2Q26 % 9M26 9M25 % Net Revenue 2.335.955 2.128.017 9,8% 2.231.538 4,7% 6.585.998 6.152.223 7,1% Domestic market 1.931.510 1.760.153 9,7% 1.844.368 4,7% 5.414.206 5.036.221 7,5% Foreign Market 404.445 367.864 9,9% 387.170 4,5% 1.171.792 1.116.002 5,0% 70,4% 21,2% 8,4% Wood Metals & San. Ware Tiles Net Revenues Breakdown 3Q26 (%) 69,9% 21,6% 8,5% Wood Metals & San. Ware Tiles Net Revenues Breakdown 9M26 (%)

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RESULTADOS 3T26 EFFECT OF CHANGES IN THE FAIR VALUE OF BIOLOGICAL ASSETS AND DEPLETION The results associated with biological assets reflect not only the physical growth of forests but also changes in the economic and accounting assumptions used in their measurement. In this context, changes in fair value and depletion are important componen ts in understanding the Company's performance, as they affect reported earnings without necessarily generating immediate cash flow. To facilitate an understanding of these dynamics, we present below the concepts of biological assets and their fair value, as well as how these elements interact in the financial statements. A biological asset consists of standing eucalyptus plantations controlled by Dexco, primarily intended to supply wood to its industrial operations and, to a lesser extent, for sale to third parties. As a living asset, its economic value changes throughout the forestry cycle according to tree growth, expected productivity and wood market conditions and prices. The fair value of biological assets represents the carrying amount assigned to standing forests at the reporting date. This amount is estimated based on the present value of expected cash flows from the wood to be harvested, considering assumptions such as volume, productivity, plantation age, harvesting schedules, standing timber market prices, selling costs and discount rates. Changes in fair value do not generate cash in the period in which they are recognized. Cash is realized when the wood is harvested and sold. Depletion, in turn, represents the accounting derecognition of the carrying number of trees harvested during the period, when they cease to be classified as biological assets and are transferred to the Company's inventories. This amount does not consist solely of historical planting and cultivation costs. It also incorporates the fair v alue adjustments recognized for those trees in previous periods throughout their growth cycle. Accordingly, depletion recognized in a given quarter reflects both historical forest development expenditures and the cumulative appreciation or depreciation determined under the fair value methodology up to the harvesting date. Neither of these components, nor changes in fair value recognized in th e current period, represents a cash movement at the time of accounting recognition. In response to wood price dynamics observed in recent years, Dexco has periodically adjusted the value of its biological assets to reflect market conditions more accurately. Fair value measurements consider parameters such as transaction and market prices, demand levels and forestry productivity, reflecting the ongoing enhancement of the Company's biological asset valuation governance. For greater transparency, Dexco discloses the effects of pricing, biological growth and volume, depletion and other changes in assumptions. In 3Q26, the Change in Fair Value of Biological Assets was positive at R$ 20.3 million, down 50.2% compared with 2Q26 (R$ 40.9 million). This result mainly reflects biological forest growth during a quarter characterized by stable wood prices in the regions monitored by the Company. Year-over-year, the amount exceeded R$ 6.1 million recorded in 3Q25, although it remained relatively modest compared with the size of the Company's forestry asset base, consistent with stable pricing assumptions during the period. In 9M26, the change in fair value totaled R$ 98.7 million, 19.4% below the R$ 122.4 million recorded in 9M25. The biological asset depletion component totaled R$ 156.4 million in 3Q26, increasing 104.6% compared with 3Q25 and 84.3% compared with 2Q26. This variation primarily reflects higher volumes of wood sold during the period, driven by forestry business operations, including forestry asset swaps and long-term wood supply agreements.

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RESULTADOS 3T26 When wood is harvested or transferred, its corresponding carrying amount is removed from biological assets. This amount includes cumulative fair value appreciation recognized in previous periods. In 9M26, depletion totaled R$ 338.9 million, up 8.0% compared with 9M25. It should be emphasized that changes in the fair value of biological assets and depletion are accounting effects that do not impact the Company's cash flow at the time of recognition. Cash realization occurs upon harvesting and/or sale of the wood. COST OF GOODS SOLD (COGS) Pro Forma Cash Cost totaled R$ 1,343.6 million in 3Q26, remaining virtually stable year -over-year (+0.6%) and increasing 1.6% compared with the previous quarter. This measure corresponds to COGS excluding depreciation, amortization, depletion, changes in the fair value of biological assets and non-recurring items. The stability in cash costs, in a quarter when Net Revenue increased 9.8%, reflects three factors: • Metals and Sanitary Ware: lower shipment volumes and a reduction in Pro Forma cash cost per unit, consistent with the focus on profitability and manufacturing footprint optimization. • Ceramic Tiles: productivity gains, with production concentrated at the Criciúma and Botucatu facilities following the closure of Urussanga. • Wood: a 3.6% increase in cash cost per unit compared with 2Q26, below the 6.9% increase in net revenue per unit, reflecting less intense input cost pressures than in the previous quarter. As a percentage of Net Revenue, Pro Forma Cash Cost represented 57.5% in 3Q26, down 5.3 percentage points compared with 3Q25 and 1.8 percentage points compared with 2Q26. This improvement reflects the realization of price increases implemented throughout the year and the normalization of the cost structure indicated in the previous quarter. Pro Forma Gross Profit totaled R$ 601.1 million in 3Q26, increasing 13.3% compared with 3Q25 and 5.8% compared with 2Q26. Pro Forma Gross Margin reached 25.7%, expanding to 0.8 percentage points year -over-year and 0.3 percentage points sequentially. Gross margin expanded by less than the reduction in cash costs as a percentage of revenue because depreciation, amortization and depletion included in COGS increased to R$ 411.6 million, from R$ 267.7 million in 3Q25. This increase was particularly influenced by the non-cash biological asset depletion component. In 9M26, Pro Forma Gross Profit totaled R$ 1,723.2 million, with a 26.2% margin, up 1.4 percentage points year -over- year. In calculating Pro Forma Cash Cost, R$ 36.0 million in non -recurring items were excluded in 3Q26, compared with R$ 18.3 million in 2Q26. Most of these items relate to the optimization of the Sanitary Ware manufacturing footprint, including write-offs of pr operty, plant and equipment and inventories. A smaller portion relates to remaining costs associated with the closure of the Urussanga facility (RC4). These items, together with the other exclusions, affect the comparability of reported accounting results between periods.

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RESULTADOS 3T26 (1) Pro Forma figures reflect adjustments related to non-recurring items, as detailed in the Appendix to this report. (2) Pro Forma Gross Margin is calculated as Pro Forma Gross Profit divided by Consolidated Pro Forma Net Revenue. SELLING EXPENSES Pro Forma Selling Expenses totaled R$ 338.8 million in 3Q26, up 19.3% compared with 3Q25 and 7.2% compared with 2Q26. The amount includes a R$ 20.5 million provision for expected credit losses in the Wood Division, representing a one-off event, with no significant identified impact on the overall quality of the receivable’s portfolio. In Metals and Sanitary Ware, the increase mainly reflects higher advertising and promotional expenditures and investments in the commercial structure, distributed relatively evenly between Metals and Sanitary Ware and consistent with the investment schedule planned for the year. In Ceramic Tiles, expenses remained stable year -over-year. The resumption of advertising and promotional investments, which had been deferred during the restructuring of the commercial organization, and the consolidation of the Division's dedicated sales structure, operational since July, were offset by lower expected credit loss provisions. In 9M26, the Division's Selling Expenses declined 11.2%. 1) Non-recurring items are detailed in the Appendix to this report. . As a percentage of Net Revenue, Pro Forma Selling Expenses represented 14.5% in 3Q26, an increase of 1.2 percentage points compared with 3Q25 and 0.3 percentage points compared with 2Q26. Excluding the impact of the expected credit loss provision, Pro Forma Selling Expenses would have represented 13.6% of Net Revenue, 0.5 percentage points below 2Q26. In 9M26, these expenses represented 14.2% of Net Revenue, broadly in line with the 14.3% recorded in 9M25. BRL´000 - Consolidated 3Q26 3Q25 % 2Q26 % 1H26 1H25 % Cash COGS (1.379.584) (1.376.292) 0,2% (1.340.871) 2,9% (2.556.076) (1.178.027) 6,2% Non Recurring Event (1) 36.002 40.534 -11,2% 18.271 97,0% 58.270 1.575 220,9% Cash COGS Pro Forma (1.343.582) (1.335.758) 0,6% (1.322.600) 1,6% (2.497.806) (1.176.452) 4,5% Variation in fair value of biological assets 20.324 6.144 230,8% 40.852 -50,2% 116.217 72.560 -65,9% Depletion of biological assets (156.386) (76.428) 104,6% (84.855) 84,3% (237.473) (142.340) 24,0% Depreciation, amortization and depletion (255.189) (191.311) 33,4% (296.671) -14,0% (413.925) (195.759) 4,2% Gross Profit 565.120 490.130 15,3% 549.993 2,8% 932.949 505.117 -26,9% Recurring Gross Profit (1) 601.122 530.664 13,3% 568.264 5,8% 991.404 506.692 -23,4% Gross Margin 24,2% 23,0% 24,6% 23,2% 25,9% Recurring Gross Margin (1)(2) 25,7% 24,9% 25,5% 24,6% 26,0% BRL´000 - Consolidated 3Q26 3Q25 % 2Q26 % 9M26 9M25 % Sales Expenses (338.758) (283.977) 19,3% (315.884) 7,2% (937.034) (885.325) 5,8% % of Net Revenue 14,5% 13,3% 0,0 p.p. 14,2% 0,0 p.p. 14,2% 14,9% 0,0 p.p. Non-recurring events (1) - - 0,0% - 0,0% - 5.130,26 0,0% Recurring Sales Expenses (1) (338.758) (283.977) 19,3% (315.884) 7,2% (937.034) (880.195) 6,5% % Recurring Net Revenue(1) 14,5% 13,3% 0,0 p.p. 14,2% 0,0 p.p. 14,2% 14,3% 0,0 p.p.

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RESULTADOS 3T26 GENERAL AND ADMINISTRATIVE EXPENSES Pro Forma General and Administrative Expenses (G&A) totaled R$ 74.8 million in 3Q26, an increase of 5.1% compared with 3Q25 and broadly stable compared with 2Q26 (+0.1%). Year-over-year, the increase was concentrated in the Wood and Ceramic Tiles Divisions, while Metals and Sanitary Ware recorded a 1.2% reduction. As a percentage of Net Revenue, G&A Expenses represented 3.2% in 3Q26, compared with 3.3% in both 3Q25 and 2Q26, reflecting improved expense absorption from revenue growth. In 9M26, Pro Forma G&A Expenses totaled R$ 225.5 million, broadly in line with 9M25 ( -0.1%), and represented 3.4% of Net Revenue, down 0.3 percentage points year -over-year, reflecting continued administrative efficiency initiatives. EBITDA Dexco recorded Adjusted and Recurring EBITDA of R$ 585.4 million in 3Q26, with a margin of 25.1%. This represents an increase of 7.0% compared with 2Q26 and 31.6% year -over-year, once again supported by the performance of the Wood Division. The Wood Division recorded Adjusted and Recurring EBITDA of R$ 535.2 million, up 35.8% from 3Q25 and 10.3% from 2Q26, with a margin of 32.6%. Wood panels performance reflected the full impact of price increases implemented throughout the year. Operations i n Colombia also contributed positively, benefiting from favorable foreign exchange effects. Cash cost per unit increased 3.6% compared with 2Q26, reflecting higher urea and methanol prices and increased logistics costs. As this increase was lower than the 6.9% rise in net revenue per unit, margins expanded despite lower shipment volumes. This performance was achieved despite the recognition of a R$ 20.5 million provision for expected credit losses related to a customer in the furniture industry undergoing judicial reorganization. The Division's results also included contributions from forestry business operations, comprising a long -term wood supply agreement and forestry asset swaps. These swaps bring wood supplies closer to manufacturing facilities, reduce average sourcing distances and logistics costs, and strengthen long-term supply security. The Metals and Sanitary Ware Division recorded Adjusted and Recurring EBITDA of R$ 57.1 million, up 2.7% from 2Q26 and 9.6% from 3Q25, with a margin of 11.5%, maintaining the profitability level achieved in the previous quarter. The result reflects the strategy of prioritizing pricing and product mix over volumes. Price increases and portfolio optimization, focused on higher -value-added categories, offset the year -over-year decline in volumes, operating inefficiencies in Sanitary Ware and higher selling expenses. Manufacturing footprint rationalization and fixed cost reductions remain underway. BRL‘000 – consolidated 3Q26 3Q25 % 2Q26 % 1H26 1H25 % General and Administrative Expenses (74.771) (71.139) 5,1% (74.704) 0,1% (225.469) (230.814) -2,3% % of Net Revenue 3,2% 3,3% 3,3% 3,4% 3,8% Non-recurring events (1) - - 5,1% - 0,1% - 5.095 -0,1% Recurring General and Administrative Expenses(1) (74.771) (71.139) 0,0% (74.704) 0,0% (225.469) (225.719) 0,0% % Recurring Net Revenue(1) 3,2% 3,3% 3,3% 3,4% 3,7%

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RESULTADOS 3T26 The Ceramic Tiles Division recorded negative Adjusted and Recurring EBITDA of R$ 6.8 million in 3Q26, compared with positive R$ 6.7 million in 2Q26. Performance reflects continued pricing pressure in the wet -process ceramic tiles market, characterized by weak demand and high industry idle capacity. On the commercial front, the Division has operated with a dedicated sales structure and Revenue Growth Management initiatives since July. These initiatives have already contributed to a 7.2% increase in shipment volumes compared with 2Q26. However, the results do not yet reflect the full impact of these initiatives, and the pricing environment remains the main area of concern for the coming quarters. (1) Non-recurring items are detailed in the Appendix to this report. (2) Includes Dexco's share of LD Celulose. NET FINANCIAL RESULT The Net Financial Result was negative R$ 219.5 million in 3Q26, compared with negative R$ 213.0 million in 3Q25 and negative R$ 197.9 million in 2Q26. Excluding non-recurring items, the Pro Forma Net Financial Result was negative R$ 207.8 million, representing a 14.1% improvement compared with 3Q25. The quarter was marked by continued progress in financial deleveraging. Net debt ended September at R$ 4.8 billion, decreasing R$ 352.5 million compared with June and R$ 802.5 million over twelve months, supported by operating cash generation and proceeds received during the period from the sale of the Urussanga plant, announced in May 2026. The higher cash balance, which reached R$ 3.3 billion at the end of the quarter, increased financial income to R$ 128.5 million, up 13.2% compared with 3Q25 (51.8% excluding non-recurring items recorded in that quarter) and 18.6% compared with 2Q26. Pro Forma Financial Expenses totaled R$ 336.3 million, increasing 3.0% year-over-year and 9.8% sequentially. Financial expenses continued to be affected by the still-elevated benchmark interest rate, despite the monetary easing cycle initiated during 2026. The quarterly increase also reflected the renegotiation of specific financing arrangements undertaken as part of the Company's liability management strategy. As a result, the Pro Forma Net Financial Result deteriorated by 5.0% compared with 2Q26. In 9M26, the Pro Forma Net Financial Result was negative R$ 618.6 million, an improvement of 6.5% compared with 9M25, reflecting the reduction in net debt throughout the period. EBITDA reconciliation in BRL‘000 – consolidated 3Q26 3Q25 % 2Q26 % 9m/26 9m/25 % Net income (142.228) 14.192 -1102,2% 14.880 -1055,8% (55.436) 111.334 -149,8% Income tax and social contribution (80.645) (32.477) 148,3% (18.396) 338,4% (115.753) (127.577) -9,3% Net financial result 219.544 213.007 3,1% 197.890 10,9% 630.393 605.978 4,0% EBIT (3.329) 194.722 -101,7% 194.374 -101,7% 459.204 589.735 -22,1% Depreciation, amortization and depletion 267.685 203.625 31,5% 308.331 -13,2% 807.342 641.326 25,9% Depletion of biological assets 156.386 76.428 104,6% 84.855 84,3% 338.923 313.901 8,0% EBITDA according to CVM No. 527/12 420.742 474.775 -11,4% 587.560 -28,4% 1.605.469 1.544.962 3,9% EBITDA margin CVM No. 527/12 18,0% 22,3% - 26,3% 24,4% 25,1% - Change in fair value of biological assets (20.324) (6.144) 230,8% (40.852) -50,2% (98.673) (122.361) -19,4% Employee benefits (2.040) (164) 1143,9% 129 -1681,4% (2.848) 2.968 -196,0% Non-Recurring events (1) 189.296 (22.023) -959,5% 28.671 560,2% 217.967 28.050 677,1% Dissolving Wood Pulp (2.236) (1.419) 57,6% (28.120) -92,0% (111.131) (220.292) -49,6% Adjusted and Recurring EBITDA (1) 585.438 445.025 31,6% 547.388 7,0% 1.610.784 1.233.327 30,6% Adjusted and Recurring EBITDA margin (1) 25,1% 20,9% - 24,5% - 24,5% 20,0% - Adjusted and Recurring EBITDA - Pro Forma (including Dexco's part in LD Celulose) (2) 783.626 566.522 38,3% 713.725 2.155.863 1.879.900 14,7%

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RESULTADOS 3T26 (1) Non-recurring items are detailed in the Appendix to this rep ort. NET INCOME (LOSS) In 3Q26, the Company recorded a net loss of R$ 142.2 million. Excluding non -recurring items, Recurring Net Income was negative R$ 5.5 million, representing an improvement of R$ 37.3 million compared with the recurring net loss of R$ 42.8 million recorded in 3Q25. In 9M26, Recurring Net Income totaled R$ 100.2 million, increasing 41.2% compared with 9M25. Reported earnings for the quarter were affected by net negative non -recurring items totaling R$ 136.7 million, most of which had no cash impact. These items were primarily associated with the optimization of the Metals and Sanitary Ware Division's manufacturing footprint, including the closure of operations at the Cabo de Santo Agostinho (PE) facility, with write -offs of property, plant and equipment and inventories, as well as the recognition of environmental remediation provisions. The loss arising from the fair value measurement of DX Ventures' investments and remaining effects related to the closure of the Urussanga (SC) facility were also excluded from the calculation of Recurring Net Income. Compared with 2Q26, recurring earnings were affected by non -cash effects related to biological assets, including higher depletion and a smaller change in their fair value, as well as a lower contribution from LD Celulose through the equity method and a more negative financial result. (1) Non-recurring items are detailed in the Appendix to this report. CASH FLOW Dexco recorded Operating Free Cash Flow of R$ 557.7 million in 3Q26, compared with R$ 116.6 million in 3Q25 and R$ 455.1 million in 2Q26. Performance reflects stronger operating cash generation, working capital release and non - recurring cash inflows during the quarter. Adjusted and Recurring EBITDA reached R$ 585.4 million, up 31.6% compared with 3Q25. Investments totaled R$ 319.8 million during the quarter. Sustaining CAPEX amounted to R$ 267.0 million, an increase of 24.6% compared with 3Q25, while remaining within the Company's 2026 budget for operational maintenance. Project CAPEX totaled R$ 52.8 million, mainly related to the accounting recognition of forestry asset swaps, with no cash disbursement. In 9M26, Project CAPEX decreased 46.6%, consistent with the completion of the 2021 –2025 BRL‘000 – consolidated 3Q26 3Q25 % 2Q26 % 9M26 9M25 % Financial Revenues 128.546 113.605 13,2% 108.373 18,6% 368.626 286.813 28,5% Financial Expenses (348.090) (326.612) 6,6% (306.263) 13,7% (999.019) (892.791) 11,9% Financial Result (219.544) (213.007) 3,1% (197.890) 10,9% (630.393) (605.978) 4,0% Non-recurring events (1) 11.790 (28.907) 0,0% - 0,0% 11.790 (55.383) 0,0% Recurring Financial Revenues(1) 128.546 84.698 51,8% 108.373 18,6% 368.626 231.430 59,3% Recurring Expenses Revenues(1) (336.300) (326.612) 3,0% (306.263) 9,8% (987.229) (892.791) 10,6% Recurring Financial Result(1) (207.754) (241.914) -14,1% (197.890) 5,0% (618.603) (661.361) -6,5% 3Q26 3Q25 % 2Q26 % 9M26 9M25 % Net Income (142.228) 14.192 -1102,2% 14.880 -1055,8% (55.436) 111.334 -149,8% Non recurring event (1) 136.725 (56.948) -340,1% 18.923 622,5% 155.648 (40.351) -485,7% Recurring Net Income (1) (5.503) (42.756) -87,1% 33.803 -116,3% 100.212 70.983 41,2% ROE -7,8% 0,8% - 0,8% - -1,0% 2,1% - Recurring ROE (1) -0,3% -2,4% - 1,9% - 1,8% 1,3% -

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RESULTADOS 3T26 investment cycle. Working capital contributed positively with R$ 215.0 million during the quarter, particularly through inventory reductions across all three divisions, reflecting initiatives to normalize inventory levels, scheduled production shutdowns and manufacturing ca pacity adjustments in Sanitary Ware and Metals. The cash conversion cycle decreased by 21.5 days compared with 3Q25, while net working capital represented 12.7% of net revenue for the last twelve months, compared with 21.4% in 3Q25. The Other Items line totaled R$ 96.9 million, mainly reflecting the receipt of R$ 153.0 million from the sale of the Urussanga plant, a non-recurring cash inflow partially offset by other non-recurring effects during the period. Following a positive financial cash flow of R$ 77.8 million, reflecting lower interest payments during the quarter, returns on cash balances and favorable foreign exchange effects from operations in Colombia, Total Free Cash Flow reached R$ 635.5 million, compared with R$ 49.7 million in 3Q25. In 9M26, Operating Free Cash Flow totaled R$ 1,239.2 million, compared with a cash outflow of R$ 33.6 million in 9M25. Total Free Cash Flow reached R$ 991.2 million, reversing the R$ 335.5 million cash outflow recorded in the corresponding period of the previous year. INDEBTEDNESS Dexco ended 3Q26 with net debt of R$ 4,782.6 million, decreasing R$ 352.5 million compared with 2Q26 and R$ 802.5 million compared with 3Q25. This performance reflects operating cash generation; disciplined capital allocation and proceeds received during the period from the sale of the Urussanga plant. The financial leverage ratio, measured as Net Debt / LTM Adjusted and Recurring EBITDA, ended the quarter at 2.36x, compared with 2.72x in 2Q26 and 3.48x in 3Q25. The 1.12x reduction over twelve months highlights the Company's consistent deleveraging progress, supported by the combination of lower net debt and stronger operating cash generation. Consolidated gross debt totaled R$ 8,073.5 million, increasing R$ 260.6 million compared with 2Q26 and R$ 981.7 million compared with 3Q25. This movement was largely associated with the ongoing initiatives to extend debt maturities and reduce the Company's overall debt costs over the past 18 months. These initiatives may result in temporary timing mismatches between the proceeds from new financing arrangements and the repayment of existing debt, particularly when early repayment opportunities arise. Nevertheless, the Company continues to carefully assess and implement measures to reduce net debt, consistent with the trend observed over (R$ milhões) 3T26 3T25 % 2T26 % 9M26 9M25 % EBITDA Ajustado e Recorrente 585,5 445,1 31,6% 547,4 7,0% 1.610,9 1.233,5 30,6% CAPEX Sustaining (267,0) (214,3) 24,6% (197,8) 35,0% (639,3) (581,2) 10,0% CAPEX Projetos (52,8) (36,0) 46,6% (88,3) -40,2% (161,6) (302,7) -46,6% IR/CSLL (19,8) (16,8) 18,1% (21,6) -7,9% (53,0) (84,6) -37,3% Δ Capital de Giro 215,0 (103,1) - 206,5 4,1% 372,9 (365,3) - Outros 96,9 41,9 131,5% 8,9 - 109,4 66,7 64,0% Fluxo de Caixa Livre Operacional 557,7 116,6 - 455,1 22,6% 1.239,2 (33,6) - Fluxo Financeiro 77,8 (67,0) - (334,4) - (248,1) (301,9) -17,8% Fluxo de Caixa Livre Total 635,5 49,7 - 120,7 - 991,2 (335,5) - Cash Convertion Ratio (2) 95,3% 26,2% - 83,1% - 76,9% (0) -

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RESULTADOS 3T26 recent quarters. Cash and cash equivalents totaled R$ 3,290.8 million, increasing R$ 613.1 million during the quarter and further strengthening the Company's liquidity position. The debt structure remained predominantly long -term, accounting for 87.6% of total debt at quarter -end, compared with 72.9% in 3Q25, reflecting the Company's liability management strategy and extension of debt maturities. The cash position represented 3.36x short-term debt maturity. The quarter's results reinforce Dexco's strategy of strengthening its capital structure through operating cash generation, disciplined capital allocation and gradual financial deleveraging. STRATEGIC MANAGEMENT AND INVESTMENTS The Company's Sustaining CAPEX totaled R$ 267.0 million in 3Q26, increasing 24.6% compared with 3Q25. The increase reflects the concentration of scheduled maintenance activities at the Wood Division's facilities, particularly operations in Colombia, and the forestry investment schedule, especially leases and silviculture activities. This seasonal movement is associated with asset reliability and continuity of wood supply, without any change in the Company's capital allocation discipline. In 9M26, Sustaining CAPEX totaled R$ 639.3 million, up 10.0% compared with 9M25. Project investments totaled R$ 52.8 million in 3Q26, primarily related to the accounting recognition of forestry asset trading transactions, with no cash disbursement. These transactions bring wood supplies closer to the Company's manufacturing facilities, reducing average sourcing distances and logistics costs while strengthening long-term supply security. In 9M26, project investments totaled R$ 161.6 million, down 46.6% compared with 9M25, reflecting the completion of the 2021–2025 investment cycle. Against this backdrop, the Company remains focused on disciplined capital allocation and capturing returns on investments made in recent years, prioritizing lower -capital-intensity initiatives with potential for value creation and improved profitability, consistent with the Company's new operating cycle. BRL‘000 06/30/2026 03/30/2025 Var R$ 03/31/2026 Var R$ 12/31/2025 Var R$ Short-Term debt 937.968 1.787.662 (849.694) 851.018 86.950 514.544 423.424 Long-Term debt 6.615.463 4.818.606 1.796.857 6.391.610 223.853 7.067.100 (451.637) Financial instruments 520.044 485.537 34.507 570.252 (50.208) 466.594 53.450 Total debt 8.073.475 7.091.805 981.670 7.812.880 260.595 8.048.238 25.237 Cash and equivalent 3.290.827 1.506.656 1.784.171 2.677.775 613.052 2.529.000 761.827 Net debt 4.782.648 5.585.149 (802.501) 5.135.105 (352.457) 5.519.238 (736.590) Net debt/Adjusted and Recurring EBITDA 2,36 x 3,48 x - 2,72 x - 3,35 x - Net debt/Equity (in %) 65,6% 79,9% - 69,4% - 76,6% - 12,0% 88,0% Short-Term Long-term Gross Corporate Debt– 3Q26 (%) 3.105 71 567 749 46 996 1.619 3.264 186 Cash Position (R$) 2026 2027 2028 2029 2030 2031 2032 adiante 3.291

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RESULTADOS 3T26 CAPITAL MARKETS The Company ended 3Q26 with a market capitalization of approximately R$ 5.27 billion, considering the closing share price of R$ 5.81 on September 30, 2026. Dexco shares (B3: DXCO3) appreciated 16.9% during the quarter and 12.2% compared with 3Q25, considering share prices adjusted for the stock bonus issued in December 2025, while the Ibovespa Index appreciated 27.4% over the same twelve- month period. During 3Q26, 208,473 trades involving DXCO3 shares were executed on B3's cash equity market, representing a total trading value of approximately R$ 589.0 million and an average daily trading value of R$ 9.1 million. 40,8% 20,4% 37,6% 1,2% Itaúsa Seibel Group Treasury Free Float Shareholding Composition| 3Q26 As of September 30, 2026

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RESULTADOS 3T26 Wood Panel (1) Pro Forma figures reflect adjustments for non -recurring items, as detailed in the Appendix to this report. (2) EBITDA calculated in accordance with the criteria established under CVM Resolution No. 156/2022. (3) Non-recurring items are detailed in the Appendix to this report. . HIGHTLIGHTS 3Q26 3Q25 % 2Q26 % 9M26 9M25 % SHIPMENTS (in m³) STANDARD 433.527 436.571 -0,7% 429.527 0,9% 1.247.273 1.260.516 -1,1% COATED 341.762 356.462 -4,1% 362.174 -5,6% 1.035.067 1.004.650 3,0% TOTAL 775.289 793.033 -2,2% 791.701 -2,1% 2.282.341 2.265.166 0,8% FINANCIAL HIGHLIGHTS (BRL`000) NET REVENUE 1.643.362 1.413.916 16,2% 1.570.147 4,7% 4.605.282 4.133.300 11,4% NET REVENUE - Pro Forma 1.643.362 1.413.916 16,2% 1.570.147 4,7% 4.605.282 4.133.300 11,4% DOMESTIC MARKET 1.266.736 - 17,8% 1.214.167 4,3% 3.522.441 3.119.841 12,9% FOREIGN MARKET 376.626 338.871 11,1% 355.980 5,8% 1.082.841 1.013.459 6,8% Net revenue per unit (BRL/m³ shipped) 2.120 1.783 18,9% 1.983 6,9% 2.018 1.825 10,6% Net revenue per unit - Pro Forma 2.120 1.783 18,9% 1.983 6,9% 2.018 1.825 10,6% Cash cost per unit (BRL/m³ shipped) (1.157) (1.051) 10,2% (1.118) 3,6% (1.112) (1.056,8) 5,2% Cash cost per unit (BRL/m³ shipped) Pro Forma(1) (1.157) (1.051) 10,2% (1.118) 3,6% (1.112) (1.056,8) 5,2% Gross profit 395.022 359.595 9,9% 388.140 1,8% 1.180.980 1.063.537 11,0% Gross profit Pro Forma(1) 395.022 359.595 9,9% 388.140 1,8% 1.180.980 1.063.537 11,0% Gross margin 24,0% 25,4% 24,7% 25,6% 25,7% Gross margin Pro Forma(1) 24,0% 25,4% 24,7% 25,6% 25,7% Selling expenses (182.888) (158.778) 15,2% (183.234) -0,2% (526.669) (480.137) 9,7% Selling expenses Pro Forma(1) (182.888) (158.778) 15,2% (183.234) -0,2% (526.669) (480.137) 9,7% General and administrative expenses (33.496) (30.867) 8,5% (32.239) 3,9% (105.807) (101.371) 4,4% General and administrative expenses Pro Forma(2) (33.496) (30.867) 8,5% (32.239) 3,9% (105.807) (99.348) 6,5% Operating profit before financial results 171.380 226.506 -24,3% 227.390 -24,6% 597.034 548.096 8,9% Depreciation, amortization and depletion 222.065 155.460 42,8% 260.132 -14,6% 666.295 498.052 33,8% Depletion tranche of biological assets 156.386 76.428 104,6% 84.855 84,3% 338.923 313.901 8,0% EBITDA Resolution CVM 156/22 (2) 549.831 458.394 19,9% 572.377 -3,9% 1.602.252 1.360.049 17,8% EBITDA Margin Resolution CVM 156/22 33,5% 32,4% 36,5% 34,8% 32,9% Variation in fair value of biological assets (20.324) (6.144) 230,8% (40.852) -50,2% (98.673) (122.361) -19,4% Employee benefits (4.204) (1.146) 266,8% (2.696) 55,9% (7.499) 793 0,0% Non-recurring events (4) 9.861 (56.878) -117,3% (43.704) -122,6% (33.843) (66.428) -49,1% Adjusted and Recurring EBITDA 535.164 394.226 35,8% 485.125 10,3% 1.462.237 1.172.053 24,8% Adjusted and Recurring EBITDA margin 32,6% 27,9% 30,9% 31,8% 28,4%

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RESULTADOS 3T26 According to data from Ibá (Brazilian Tree Industry), the domestic wood panels market contracted 2.8% in 3Q26 compared with 3Q25, although it remained up 2.8% in 9M26, supported by strong demand during the first half of the year. In retail, the quarter was characterized by a reduction in inventories accumulated across the supply chain in 2Q26 in anticipation of price increases, while retail sell -out continued to show positive momentum. In the furniture industry, MDP volumes were affected by lower industry exports, pressured by elevated ocean freight costs. This increased the supply of panels in the domestic market and intensified competition. Brazilian wood panel exports declined 19% year-to-date. The Wood Division maintained consistent commercial performance in 3Q26, supported by the full impact of price increases implemented throughout the year. In an environment of more selective demand, the Division prioritized profitability, maintaining pricing discipline and avoiding lower -margin volumes, particularly in exports from Brazil, which declined at a slower pace than the overall market. On the cost side, the quarter reflected higher urea and methanol prices, whose peaks were absorbed with the natural lag associated with inventory turnover, as well as higher diesel -related logistics costs. Pricing gains offset these pressures. Operations in Colombia contributed positively, benefiting from the appreciation of the Colombian peso against the Brazilian real, despite stronger competition from imported products. Selling Expenses included a one -off R$ 20.5 million provision for expected credit losses related to a customer in the furniture industry undergoing judicial reorganization. The Division also benefited from forestry businesses, comprising a long -term wood supply agreement, whose results follow the harvesting schedule, and forestry asset swaps. These swaps bring wood supplies closer to manufacturing facilities, reducing average sourcing distances and logistics costs while strengthening long -term supply security, without cash disbursements. The Division recorded Adjusted and Recurring EBITDA of R$ 535.2 million in 3Q26, increasing 35.8% compared with 3Q25 and 10.3% compared with 2Q26, with an Adjusted and Recurring EBITDA margin of 32.6%. Of this amount, R$ 450.0 million came from wood panel operations, including Colombia, and R$ 85.2 million from forestry businesses. In 9M26, Adjusted and Recurring EBITDA totaled R$ 1,462.2 million, up 24.8% year -over-year. Compared with 3Q25, the increase reflects the stronger contribution from forestry businesses and improved performance in Colombia, which offset lower volumes, higher wood costs and the one -off credit-related impact on wood panel operations. Sequentially, growth was mainly driven by forestry businesses and Colombia, while wood panel operations absorbed the one-off credit-related impact. Adjusted and Recurring EBITDA excludes non -recurring items with a net negative impact of R$ 9.9 million during the quarter, related to the reversal of ICMS tax credits. Total shipment volume reached 775.3 thousand m³ in 3Q26, down 2.2% compared with 3Q25 and 2.1% compared with 2Q26, reflecting inventory Sales Segmentation 3Q26 (%) 63,0% 27,0% 11,0% Furniture Industry Resale Foreign Markets 62,0% 27,0% 11,0% Furniture Industry Resale Foreign Markets Sales Segmentation 9M2026

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RESULTADOS 3T26 reductions in retail, lower volumes in the furniture industry and Dexco's commercial decision not to pursue lower - margin export sales. The decline was concentrated in coated panels, which are more exposed to retail channels, while standard panel volumes remained stable. In 9M26, shipments totaled 2,282.3 thousand m³, increasing 0.8% compared with 9M25. Net Revenue reached R$ 1,643.4 million, up 16.2% year-over-year and 4.7% sequentially. Revenue increased in both the domestic market (+17.8%) and export markets (+11.1%), with the latter benefiting from Colombia and foreign exchange effects. Net revenue per unit reached R$ 2,120/m³, an increase of 18.9% compared with 3Q25 and 6.9% compared with 2Q26, reflecting the realization of price increases, the contribution from Colombia and forestry business revenue recognized during the period. Cash cost per unit reached R$ 1,157/m³, increasing 10.2% compared with 3Q25 and 3.6% sequentially, reflecting urea and methanol prices and lower fixed cost absorption resulting from reduced shipment volumes. Nevertheless, the increase in net revenue per unit significantly exceeded the increase in cash cost per unit. As a result, the difference between the two measures per cubic meter widened by 31% year -over-year and 11% compared with 2Q26. Consequently, the Division recorded Pro Forma Gross Profit of R$ 395.0 million, increasing 9.9% compared with 3Q25 and 1.8% compared with 2Q26, with a Gross Margin of 24.0%, compared with 25.4% in 3Q25 and 24.7% in 2Q26. The change in Gross Margin reflects non -cash accounting effects, particularly the higher biological asset depletion component, which totaled R$ 156.4 million during the quarter, compared with R$ 76.4 million in 3Q25 and R$ 84.9 million in 2Q26. This increase resulted from (i) the biological asset fair value adjustment recorded in 4Q25, which increased the accounting cost of internally sourced wood consumed, and (ii) the derecognition of biological assets associated with forestry business operations. Against this backdrop, the Wood Division remains the Company's main earnings contributor. Wood panel operations -maintained profitability despite lower shipment volumes, supported by pricing discipline and absorbing a one -off credit -related impact, while fo restry asset management reinforced earnings and long-term supply competitiveness. Cost of Products Sold 3Q26 (%) 27,5% 21,3%24,9% 12,4% 8,7% 5,2% Wood Resin Others Paper Workforce Electricity Cost of Products Sold 9M26 (%) 27,5% 21,3%24,7% 13,1% 8,2% 5,2% Wood Resin Others Paper Workforce Electricity

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RESULTADOS 3T26 Celulose Solúvel (1) Pro Forma figures reflect adjustments for non -recurring items, as detailed in the Appendix to this report. (2) EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization): an operating performance measure calculated in accordance with CVM Resolution No. 156/2022. (3) Non-recurring items are detailed in the Appendix to this report. HIGHTLIGHTS 3Q26 3Q25 % 2Q26 9M26 9M25 % SHIPMENTS (in m³) STANDARD 167.870 132.034 27,1% 157.604 493.795 437.395 12,9% TOTAL 167.870 132.034 27,1% 157.604 493.795 437.395 12,9% FINANCIAL HIGHLIGHTS (BRL`000) NET REVENUE 816.071 655.533 24,5% 714.604 2.288.251 2.373.414 -3,6% NET REVENUE - Pro Forma 816.071 655.533 24,5% 714.604 2.288.251 2.373.414 -3,6% DOMESTIC MARKET 95.122 71.970 32,2% 96.170 261.190 212.508 22,9% FOREIGN MARKET 720.949 583.563 23,5% 618.434 2.027.061 2.160.906 -6,2% Net revenue per unit (BRL/m³ shipped) 4.861 4.965 -2,1% 4.534 4.634 5.426 -14,6% Net revenue per unit - Pro Forma 4.861 4.965 -2,1% 4.534 4.634 5.426 -14,6% Cash cost per unit (BRL/m³ shipped) (1.735) (2.155) -19,5% (1.523) (1.596) (1.540) 3,6% Cash cost per unit (BRL/m³ shipped) Pro Forma(1) (1.735) (2.155) -19,5% (1.523) (1.596) (1.540) 3,6% Cash Cost (291.276) (284.567) 2,4% (240.052) (787.909) (673.364) 17,0% Gross profit 234.670 182.571 28,5% 299.121 936.216 1.167.452 -19,8% Gross profit Pro Forma(1) 234.670 182.571 28,5% 299.121 936.216 1.167.452 -19,8% Gross margin 28,8% 27,9% 41,9% 40,9% 49,2% Gross margin Pro Forma(1) 28,8% 27,9% 41,9% 40,9% 49,2% Selling expenses (120.338) (94.032) 28,0% (124.383) (369.652) (325.040) 13,7% Selling expenses Pro Forma(1) (120.338) (94.032) 28,0% (124.383) (369.652) (325.040) 13,7% General and administrative expenses (19.344) (23.908) -19,1% (18.601) (56.836) (63.996) -11,2% General and administrative expenses Pro Forma (19.344) (23.908) -19,1% (18.601) (56.836) (63.996) -11,2% Operating profit before financial results 101.573 57.045 78,1% 160.624 529.119 778.412 -32,0% Depreciation, amortization and depletion 175.120 184.968 -5,3% 163.792 504.724 541.426 -6,8% Depletion tranche of biological assets 100.417 53.892 86,3% 93.958 264.052 208.835 26,4% EBITDA according to CVM Resolution 156/22 (2) 377.110 295.905 418.375 1.297.895 1.528.673 EBITDA margin according to CVM Resolution 156/22 46,2% 45,1% 2,4% 58,5% 56,7% 64,4% -11,9% Variation in fair value of biological assets 26.675 (47.942) -155,6% (79.536) (187.102) (209.784) -10,8% Employee benefits - - 0,0% - - - 0,0% Non-recurring events (3) - - 0,0% - - - 0,0% Adjusted and Recurring EBITDA 403.785 247.960 62,8% 338.839 1.110.793 1.318.886 -15,8% Adjusted and Recurring EBITDA margin 49,5% 37,8% 0,0% 47,4% 48,5% 55,6% 0,0% Net Income 5.087 3.261 56,0% 58.128 227.996 446.221 -48,9% Net Income - Dexco Share 2.236 1.424 57,0% 28.447 111.457 220.297 -49,4% Financial Result (78.719) (103.017) -23,6% (86.053) (290.012) (399.973) -27,5% Cash position (USD '000) 111.460 129.683 -14,1% 139.896 111.460 129.683 -14,1% Gross Debt (USD '000) 901.243 945.946 -4,7% 925.103 901.243 945.946 -4,7%

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RESULTADOS 3T26 LD Celulose maintained a high level of shipments in 3Q26, with sales volume reaching 167.9 thousand tonnes, up 6.5% compared with 2Q26 and 27.1% compared with 3Q25, a period affected by a scheduled maintenance shutdown. Year-to-date, sales totaled 493.8 thousand tonnes, increasing 12.9% compared with 9M25. Shipments were also supported by inventory reductions, offsetting temporary operational disruptions at the wood yard in September, which have since been resolved. The dissolving wood pulp market maintained its recovery trajectory throughout the quarter, with international benchmark prices in China increasing consistently since the end of the first half of the year. Demand remained supported by high-capacity utilization rates across the viscose fiber supply chain and low inventory levels throughout the industry. The competitiveness of cellulosic fibers also improved relative to polyester, which was affected by higher petroleum derivative prices associated with the geopolitical environment. Against this backdrop, LD Celulose's net revenue per unit increased 7.2% compared with 2Q26. Year -over-year, the recovery in US dollar -denominated prices was partially offset by the appreciation of the Brazilian real. Net Revenue reached R$ 816.1 million in 3Q26, increasing 24.5% compared with 3Q25 and 14.2% compared with 2Q26, reflecting the combination of more favorable prices and higher shipment volumes. In 9M26, Net Revenue totaled R$ 2,288.3 million, down 3.6% compared with 9M25. Adjusted and Recurring EBITDA totaled R$ 403.8 million in 3Q26, with a margin of 49.5%, increasing 62.8% compared with 3Q25 and 19.2% compared with 2Q26, the highest level recorded during the year. The result absorbed pressure from logistics and energy costs associated with the geopolitical environment. In 9M26, Adjusted and Recurring EBITDA totaled R$ 1,110.8 million, with a margin of 48.5%. Net Income reached R$ 5.1 million during the quarter, of which R$ 2.2 million was attributable to Dexco and recognized under the equity method (R$ 111.5 million in 9M26). The difference between net income and operating performance mainly reflects the negative change in the fair value of biological assets, higher depletion and a negative financial result of R$ 78.7 million during the quarter, in addition to foreign exchange effects on the calculation of income tax and social contribution, which are non-cash accounting effects. The cash position ended the quarter at US$ 111.5 million, down 14.1% compared with 3Q25, while gross debt totaled US$ 901.2 million, decreasing 4.7% year-over-year, reflecting debt repayments during the period. The scheduled maintenance shutdown was completed in October, and its effects will be reflected in 4Q26.

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RESULTADOS 3T26 METALS & SANITARY WARE (1) Pro Forma figures reflect adjustments for non-recurring items, as detailed in the Appendix to this report. (2) EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization): an operating performance measure calculated in accordance with CVM Resolution No. 156/2022. (3) Non-recurring items are detailed in the Appendix to this report. HIGHTLIGHTS 3Q26 3Q25 % 2Q26 % 9M26 9M25 % SHIPMENTS (in ‘000 items) BASIC GOODS 1.679 1.995 -15,8% 1.666 0,8% 5.112 5.882 -13,1% FINISHING GOODS 2.046 2.264 -9,6% 1.959 4,4% 6.046 6.796 -11,0% TOTAL 3.725 4.259 -12,5% 3.625 2,8% 11.158 12.678 -12,0% FINANCIAL HIGHLIGHTS (BRL1,000) NET REVENUE (sales in items) 496.181 507.021 -2,1% 471.304 5,3% 1.421.845 1.396.856 1,8% NET REVENUE (sales in items) Pro Forma 496.181 507.021 -2,1% 471.304 5,3% 1.421.845 1.396.856 1,8% DOMESTIC MARKET 478.639 491.055 -2,5% 455.718 5,0% 1.372.152 1.342.252 2,2% FOREIGN MARKET 17.542 15.966 9,9% 15.586 12,5% 49.693 54.604 -9,0% Net revenue per unit (BRL/ per item shipped) 133 119 11,9% 130 2,5% 127 110,2 15,7% Cash cost per unit (BRL/ per item shipped) (90) (88) 1,5% (85) 6,1% (84) (81,1) 3,9% Cash cost per unit Pro Forma (BRL/per item shipped)(1) (81) (82) -1,5% (85) -4,1% (81) (78,5) 3,8% Gross profit 134.094 107.241 25,0% 137.181 -2,3% 399.647 297.848 34,2% Gross profit - Pro Forma (1) 166.127 132.827 25,1% 137.181 21,1% 431.680 331.886 30,1% Gross margin 27,0% 21,2% 29,1% 28,1% 21,3% Gross margin - Pro Forma (1) 33,5% 26,2% 29,1% 30,4% 23,8% Selling expenses (109.285) (78.912) 38,5% (89.921) 21,5% (282.574) (261.274) 8,2% Selling expenses - Pro Forma (2) (109.285) (78.912) 38,5% (89.921) 21,5% (282.574) (256.144) 10,3% General and administrative expenses (29.100) (29.453) -1,2% (31.794) -8,5% (88.216) (90.017) -2,0% General and administrative expenses - Pro Forma (3) (29.100) (29.453) -1,2% (31.794) -8,5% (88.216) (87.613) 0,7% Operating profit before financial results (148.735) (1.117) 13215,6% 22.143 -771,7% (116.656) (53.510) 118,0% Depreciation and amortization 31.775 29.519 7,6% 30.783 3,2% 92.390 87.817 5,2% EBITDA Resolution CVM 156/22 (2) (116.960) 28.402 -511,8% 52.926 -321,0% (24.266) 34.307 -170,7% EBITDA Margin Resolution CVM 156/22 -23,6% 5,6% 11,2% -1,7% 2,5% Employee benefits 2.163 1.092 98,1% 2.674 -19,1% 4.575 2.485 84,1% Non-recurring events (5) 171.876 22.601 660,5% - 171.876 32.100 435,4% Adjusted and Recurring EBITDA 57.079 52.095 9,6% 55.600 2,7% 152.185 68.892 120,9% Adjusted and Recurring EBITDA margin 11,5% 10,3% 11,8% 10,7% 4,9%

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RESULTADOS 3T26 According to the Company's internal analyses based on market data measured in value terms, the Metals and Sanitary Ware market remained below 2025 levels in the year-to-date period through August 2026. The Metals segment declined 5.7% compared with the same period of the previous year, while Sanitary Ware contracted 8.1% on the same comparison basis. In both segments, the decline was concentrated in retail, the industry's main distribution channel, while the construction project channel recorded growth. The gradual recovery expected for the second half of the year progressed more slowly than anticipated, reflecting the prolonged impact of high interest rates and household indebtedness on home renovation spending. In Sanitary Ware, consumers continued to s hift toward lower-value-added products. In the Metals and Sanitary Ware Division, 3Q26 confirmed the maintenance of double-digit profitability, as the Company prioritized pricing and margins amid still -subdued demand. The Division recorded shipment volumes of 3,725 thousand units in 3Q26, down 12.5% compared with 3Q25 and up 2.8% sequentially. The year-over-year decline reflects a combination of weaker industry demand and the Company's portfolio review, which reduced exposure to lower -value-added and less profitable categories, particularly the highly price-competitive segment of Sanitary Ware. Year-to-date through August, the Company's market share, measured in value, reached 49.6% in Metals and 32.6% in Sanitary Ware, increasing 3.9 percentage points and 2.2 percentage points, respectively, compared with the same period of 2025, with gains across all channels. Pro Forma Net Revenue totaled R$ 496.2 million in 3Q26, down 2.1% from 3Q25, a significantly smaller decline than the reduction in shipment volumes, and up 5.3% sequentially. Net revenue per unit reached R$ 133.20, increasing 11.9% year-over-year and 2.5% quarter-over-quarter, reflecting the growing contribution from price increases implemented throughout the year. Pro Forma Cash Cost per Unit reached R$ 81.10 in 3Q26, down 1.5% from 3Q25 and 4.1% from 2Q26. In Metals, copper prices remained elevated but were more stable than in the first half of the year, while previously implemented price increases helped preserve margins. In Sanitary Ware, costs were affected by operating inefficiencies at the Recife facility, offset by one -off effects. As a result, Pro Forma Gross Profit totaled R$ 166.1 million, with a margin of 33.5%, representing an increase of 7.3 percentage points year - Cost of Products Sold 3Q26 (%) Cost of the Products Sold 9M26 (%) 35,8% 30,2% 18,2% 9,9% 4,1% 1,8% Others Workforce Metals Depreciation Fuel Eletricity 39,2% 30,5% 16,0% 9,1% 3,6% 1,6% Others Workforce Metals Depreciation Fuel Eletricity Sales Segmentation 3Q26 (%) Sales Segmentation 9M26 (%) 40,7% 25,9% 19,2% 6,2% 3,4% 4,6% Retail Specialized Stores Civil Construction Home Center Foreign Markets Others 40,8% 25,2% 19,4% 6,7% 3,5% 4,4% Retail Specialized Stores Civil Construction Home Center Foreign Markets Others

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RESULTADOS 3T26 over-year and 4.4 percentage points sequentially. Pro Forma Selling Expenses totaled R$ 109.3 million in 3Q26, increasing 38.5% compared with 3Q25 and 21.5% sequentially, mainly reflecting higher advertising and promotional investments and investments in the commercial structure, distributed relatively ev enly between Metals and Sanitary Ware and consistent with the investment schedule planned for the year. Pro Forma General and Administrative Expenses totaled R$ 29.1 million, down 1.2% year-over-year and 8.5% quarter-over-quarter. Against this backdrop, the Division recorded Adjusted and Recurring EBITDA of R$ 57.1 million in 3Q26, with a margin of 11.5%, increasing 9.6% compared with 3Q25 (R$ 52.1 million, with a 10.3% margin) and 2.7% compared with 2Q26 (R$ 55.6 million, with an 1 1.8% margin). Despite lower revenue, the Division expanded its margin by 1.2 percentage points year-over-year. In 9M26, Adjusted and Recurring EBITDA totaled R$ 152.2 million, compared with R$ 68.9 million in 9M25. Performance primarily reflects the combination of (i) price recovery and (ii) portfolio optimization focused on higher -margin categories. These factors more than offset lower fixed cost absorption, operating inefficiencies in Sanitary Ware and higher selling expenses. Industrial Footprint Rationalization As disclosed in the Material Fact dated October 19, 2026, the Company decided to discontinue operations at its Sanitary Ware facility in Recife (PE), concentrating production at the more automated Jundiaí (SP) plant, which focuses on higher -value-added products, while complementing its portfolio through outsourced manufacturing. Similarly, one of the production lines at the Metals manufacturing complex in São Paulo (SP) was shut down, with its volumes abso rbed by the remaining production structure. These decisions represent further progress in the Division's industrial footprint rationalization, which remains focused on a more asset -light operating model, with higher productivity and lower fixed costs. The resulting accounting impacts, totaling R$ 171.9 million in 3Q26, were predominantly non -cash, classified as non -recurring and detailed in the Non -Recurring Items section.

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RESULTADOS 3T26 CERAMIC TILES (1) and (2) Pro Forma figures reflect adjustments for non-recurring items, as detailed in the Appendix to this report. (3) EBITDA calculated in accordance with the criteria established under CVM Resolution No. 156/2022. (4) Non-recurring items are detailed in the Appendix to this report. HIGHTLIGHTS 3Q26 3Q25 % 2Q26 % 9M26 9M25 % SHIPMENTS (in 'm²) FINISHING GOODS 4.524.311 4.256.927 6,3% 4.221.453 7,2% 12.401.929 3.842.447 -1,1% TOTAL 4.524.311 4.256.927 6,3% 4.221.453 7,2% 12.401.929 3.842.447 -1,1% FINANCIAL HIGHLIGHTS (BRL1,000) NET REVENUE 196.412 207.080 -5,2% 190.087 3,3% 558.871 206.202 -10,2% Net Revenue - Pro Forma 196.412 207.080 -5,2% 190.087 3,3% 558.871 206.202 -10,2% DOMESTIC MARKET 186.135 194.053 -4,1% 174.483 6,7% 519.613 188.055 -9,5% FOREIGNT MARKET 10.277 13.027 -21,1% 15.604 -34,1% 39.258 18.147 -18,1% Net revenue per unit (BRL per m² shipped) 43 49 -10,8% 45 -3,6% 45 53,7 -9,1% Cash cost per unit (BRL per m² shipped) (33) (39) -16,4% (35) -7,6% (34) (40,5) -15,3% Cash cost per unit Pro Forma (BRL per m² shipped) (1) (32) (36) -10,7% (31) 2,4% (33) (40,1) -8,0% Gross profit 36.004 23.294 54,6% 24.672 45,9% 88.252 35.710 43,0% Gross profit - Pro Forma (1) 39.973 38.242 4,5% 42.943 -6,9% 110.492 37.285 -12,8% Gross margin 18,3% 11,2% 13,0% 15,8% 17,3% Gross margin - Pro Forma (1) 20,4% 18,5% 22,6% 19,8% 18,1% Selling expenses (46.585) (46.287) 0,6% (42.729) 9,0% (127.791) (48.425) -11,2% Selling expenses - Pro Forma (1) (46.585) (46.287) 0,6% (42.729) 9,0% (127.791) (48.425) -11,2% General and administrative expenses (12.175) (10.819) 12,5% (10.671) 14,1% (31.446) (18.184) -20,2% General and administrative expenses - Pro Forma (2) (12.175) (10.819) 12,5% (10.671) 14,1% (31.446) (18.184) -18,9% Operating profit before financial results (28.210) (32.086) -12,1% (83.279) -66,1% (132.305) (32.095) 5,7% Depreciation and amortization 13.845 18.646 -25,7% 17.416 -20,5% 48.657 24.177 -12,3% EBITDA Resolution CVM 156/22 (2) (14.365) (13.440) 6,9% (65.863) -78,2% (83.648) (7.918) 20,0% EBITDA Margin Resolution CVM 156/22 -7,3% -6,5% -34,6% -15,0% -3,8% Employee benefits 1 (110) -100,9% 151 -99,3% 76 828 -124,5% Non-recurring events (4) 7.559 12.254 -38,3% 72.375 -89,6% 79.934 (1.125) 28,1% Adjusted and Recurring EBITDA (6.805) (1.296) 425,1% 6.663 -202,1% (3.638) (8.215) -52,2% Adjusted and Recurring EBITDA margin -3,5% -0,6% 3,5% -0,7% -4,0%

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RESULTADOS 3T26 Due to the ongoing review of ANFACER's historical industry data series, the Company has decided not to report wet-process ceramic tile industry demand and capacity utilization indicators for this quarter. Industry conditions remain characterized by weak demand and intense price competition. Against this backdrop, the Ceramic Tiles Division shipped 4,524.3 thousand m² in 3Q26, increasing 6.3% compared with 3Q25 and 7.2% compared with 2Q26. In 9M26, shipment volumes totaled 12,401.9 thousand m², remaining broadly stable compared with 9M25 (-1.1%). Performance reflects improvements in the sales order book, supported by the Division's dedicated commercial structure and Revenue Growth Management (RGM) initiatives across sales channels. Production remained below sales volumes, allowing the Division to reduce finished goods inventories by 40% compared with December 2025, reaching 66 days of sales at the end of September, with a positive impact on working capital. Pro Forma Net Revenue totaled R$ 196.4 million in 3Q26, down 5.2% compared with 3Q25 and up 3.3% compared with 2Q26. Net revenue per unit reached R$ 43.41/m², decreasing 10.8% year -over-year and 3.6% sequentially, reflecting continued industry pricing pressure, particularly in large-format tiles. Export revenue declined 21.1% year -over-year, reflecting a reduction in the low - and mid-range product portfolio and geopolitical developments. Pro Forma Cash Cost per Unit reached R$ 31.89/m², down 10.7% compared with 3Q25, reflecting lower industrial fixed costs following capacity adjustments, as well as productivity, quality and energy efficiency initiatives. Compared with 2Q26, Pro Forma Cash Cost per Unit increased 2.4%, explained by lower sales of inventories of discontinued products. Pro Forma Gross Margin reached 20.4%, increasing 1.9 percentage points year-over-year and declining 2.2 percentage points sequentially. Pro Forma Selling Expenses totaled R$ 46.6 million, broadly in line with 3Q25 (+0.6%) and 9.0% above 2Q26, reflecting the resumption of advertising and promotional investments and the initial costs of the Division's dedicated sales structure, previously sh ared with the Metals and Sanitary Ware Division. Pro Forma General and Administrative Expenses totaled R$ 12.2 million, increasing 12.5% year -over-year and 14.1% sequentially, mainly reflecting the reversal of a Cecrisa labor litigation provision recorded in 2Q26, which reduced the quarter-over-quarter comparison base. Adjusted and Recurring EBITDA was negative R$ 6.8 million in 3Q26, with a margin of -3.5%, compared with positive R$ 6.7 million in 2Q26 (3.5% margin) and negative R$ 1.3 million in 3Q25 ( -0.6% margin). As indicated in the previous earnings release, the 2Q26 result did not represent a sustainable Sales Segmentation 9M26 (%) 36,4% 22,0% 19,5% 13,7% 7,7% 0,8% Specialized Stores Civil Construction Home Centers Retail Foreign Markets Others Sales Segmentation 3Q26 (%) 38,5% 20,5% 13,3% 20,4% 0,8% 6,2% Specialized Stores Civil Construction Home Centers Retail Foreign Markets Others Cost of Products Sold 3Q26 (%) 51,3% 16,4% 19,0% 8,4% 4,9% Other Workforce Fuel Electricity Depreciation 51,2% 17,4% 17,7% 9,4% 4,3% Other Workforce Fuel Electricity Depreciation Cost of Products Sold 9M26 (%)

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RESULTADOS 3T26 profitability level. Year-over-year cost improvements were insufficient to offset the decline in net revenue per unit and higher selling expenses. In 9M26, Adjusted and Recurring EBITDA was negative R$ 3.6 million, compared with negative R$ 7.6 million in 9M25. Non-recurring items totaling R$ 7.6 million were excluded during the quarter, mainly related to residual costs associated with the closure of the Urussanga (SC) facility. The Division remains focused on adapting its operating structure to market conditions, emphasizing operational efficiency, commercial discipline and cash preservation, while seeking to increase operating leverage to benefit from an eventual recovery in the industry.

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RESULTADOS 3T26 Attachments Financial Statments – Assets CONSOLIDATED ASSETS 09/30/2026 AV% 12/31/2025 AV% 09/30/2025 AV% CURRENT 6.683.526 34,7% 6.048.101 31,8% 5.341.161 29,6% Cash and cash equivalents 3.012.526 15,7% 2.178.462 11,5% 1.202.693 6,7% Other financial assets 278.301 1,4% 350.538 1,84% 303.963 1,69% Trade accounts receivable 1.147.106 6,0% 1.031.511 5,4% 1.135.035 6,3% Related parties accounts receivable 74.090 0,4% 51.989 0,3% 53.694 0,3% Inventories 1.651.852 8,6% 1.761.371 9,3% 1.920.602 10,7% Other receivables 65.591 0,3% 28.121 0,1% 42.679 0,2% Other receivables from related parties 13.633 0,1% 13.481 0,07% - 0,00% Recoverable taxes and contributions 195.702 1,0% 456.776 2,4% 594.492 3,3% Derivative financial instruments - 0,0% - 0,0% 2.633 0,0% Other credits 87.597 0,5% 71.328 0,4% 51.813 0,3% Non current assets available for sale 157.128 0,8% 104.524 0,6% 33.557 0,2% NON-CURRENT 12.561.928 65,3% 12.952.684 68,2% 12.681.988 70,4% Restricted deposits 144.944 0,8% 152.646 0,8% 160.404 0,9% Other receivables 215.753 1,1% 188.063 1,0% 135.383 0,8% Pension plan credits 92.924 0,5% 87.343 0,5% 89.721 0,5% Recoverable taxes and contributions 254.865 1,3% 197.020 1,0% 210.349 1,2% Deferred income tax and social contribution 846.832 4,4% 739.579 3,9% 675.425 3,7% Marketable securities 131.999 0,7% 145.312 0,8% 170.223 0,9% Derivative financial instruments - 0,0% 0 0,0% 18.374 0,1% Investments in subsidiaries and associates 2.377.552 12,4% 2.358.772 12,4% 2.323.614 12,9% Other investments 1.139 0,0% 52.895 0,3% 2.729 0,0% Property, plant and equipment 3.944.016 20,5% 4.354.675 22,9% 4.577.443 25,4% Assets of use rights 836.460 4,3% 798.891 4,2% 758.526 4,2% Biological assets 3.001.934 15,6% 3.044.361 16,0% 2.722.334 15,1% Intangible assets 713.510 3,7% 833.127 4,4% 837.463 4,6% TOTAL ASSETS 19.245.454 100,0% 19.000.785 100,0% 18.023.149 100,0%

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RESULTADOS 3T26 Financial Statments – Liabilities CONSOLIDATED LIABILITIES AND STOCKHOLDERS' EQUITY 09/30/2026 AV% 12/31/2025 AV% 09/30/2025 AV% CURRENT 3.336.746 17,3% 2.701.138 14,2% 4.028.803 22,3% Loans and financing 840.395 4,4% 374.575 2,0% 1.153.364 6,4% Related parts loans and financing - 0,0% 100.512 0,5% 0 0,0% Debentures 97.573 0,5% 39.457 0,2% 634.298 3,5% Suppliers 870.808 4,5% 942.612 5,0% 968.530 5,4% Related parties suppliers - 0,0% 12.748 0,1% 4.104 0,0% Supplier risk drawee 256.844 1,3% 180.465 0,9% 125.400 0,7% Lease liability 57.420 0,3% 57.418 0,3% 54.916 0,3% Related party lease liabilities 321 0,0% 290 0,0% 691 0,0% Personnel 246.078 1,3% 210.549 1,1% 256.619 1,4% Accounts payable 650.424 3,4% 474.891 2,5% 425.452 2,4% Related parties accounts payable 1.605 0,0% 3.851 0,0% 3.851 0,0% Taxes and contributions 205.028 1,1% 138.879 0,7% 222.532 1,2% Dividends and interest on capital 1.529 0,0% 58.871 0,3% 45.049 0,2% Derivative financial instruments 108.721 0,6% 106.020 0,6% 133.997 0,7% Discontinued Operations Liabilities - 0,0% 0 0,0% 0 0,0% NON-CURRENT 8.622.034 44,8% 9.091.606 47,8% 7.004.444 38,9% Loans and financing 5.117.914 26,6% 5.569.688 29,3% 4.818.606 26,7% Related parts loans and financing - 0,0% 0 0,0% 0 0,0% Debentures 1.497.549 7,8% 1.497.412 7,9% 0 0,0% Lease liability 859.749 4,5% 799.551 4,2% 757.256 4,2% Lease liability of Related Parties 44.192 0,2% 43.406 0,2% 41.477 0,2% Contingencies 268.613 1,4% 276.545 1,5% 303.012 1,7% Deferred income tax and social contribution 284.890 1,5% 371.964 2,0% 345.852 1,9% Accounts payable 134.671 0,7% 148.829 0,8% 341.095 1,9% Related parties - 0,0% 642 0,0% 1.604 0,0% Income tax and social contribution 3.133 0,0% 22.995 0,1% 22.995 0,1% Derivative financial instruments 411.323 2,1% 360.574 1,9% 372.547 2,1% STOCKHOLDERS' EQUITY 7.286.674 37,9% 7.208.041 37,9% 6.989.902 38,8% Capital 4.370.189 22,7% 4.370.189 23,0% 3.370.189 18,7% Costs on issue of shares (7.823) 0,0% -7.823 0,0% -7.823 0,0% Capital reserves 411.658 2,1% 408.142 2,1% 406.672 2,3% Capital transactions with partners 120.748 0,6% 1.542 0,0% -18.731 -0,1% Revaluation reserves 32.206 0,2% 32.228 0,2% 32.541 0,2% Revenue reserves 1.220.194 6,3% 1.343.864 7,1% 2.431.005 13,5% Carrying value adjustments 771.395 4,0% 812.220 4,3% 643.727 3,6% Treasury shares (111.361) -0,6% -113.528 -0,6% -113.528 -0,6% Noncontrolling interests 479.468 2,5% 361.207 1,9% 245.850 1,4% TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY 19.245.454 100,0% 19.000.785 100,0% 18.023.149 100,0%

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RESULTADOS 3T26 Income Statement INCOME STATEMENT 3Q26 Gross Income 2.874.745 Domestic Market 2.413.585 Wood 1.570.629 1.353.238 Deca 605.468 623.263 Ceramic Tiles 237.488 Foreign Market 461.160 Wood 433.343 388.139 Deca 17.541 15.966 Ceramic Tiles 10.276 Taxes and Sale Contributions (538.790) Wood (360.608) (327.461) Deca (126.828) (132.208) Ceramic Tiles (51.354) NET INCOME FOR THE PERIOD 2.335.955 Domestic Market 1.931.510 Wood 1.266.736 1.075.045 Deca 478.639 491.055 Ceramic Tiles 186.135 Foreign Market 404.445 Wood 376.626 338.871 Deca 17.542 15.966 Ceramic Tiles 10.277 Biological asset 20.324 Cost of goods sold (1.379.584) Depreciation/amortization/depletion Depletion of biological assets (156.386) GROSS PROFIT 565.120 Selling expenses (338.758) General and administrative Management compensation (3.856) Other operating results, net (153.125) Equity Equivalence Results 2.061 OPERATING PROFIT BEFORE Financial revenues 128.546 Financial expenses (348.090) PROFIT BEFORE INCOME TAX Income tax and social Income tax and social NET INCOME FOR THE PERIOD (142.228) 3Q25 % 2Q26 % 9M26 9M25 % 2.640.186 8,9% 2.749.251 4,6% 8.111.345 7.586.986 6,9% 2.223.054 8,6% 2.310.941 4,4% 6.777.475 6.328.598 7,1% 16,1% 1.512.396 3,9% 4.380.690 3.898.608 12,4% -2,9% 576.265 5,1% 1.734.415 1.699.632 2,0% 246.553 -3,7% 222.280 6,8% 662.370 730.358 -9,3% 417.132 10,6% 438.310 5,2% 1.333.870 1.258.388 6,0% 11,6% 407.122 6,4% 1.244.924 1.155.848 7,7% 9,9% 15.584 12,6% 49.689 54.601 -9,0% 13.027 -21,1% 15.604 -34,1% 39.257 47.939 -18,1% (512.169) 5,2% (517.713) 4,1% (1.525.347) (1.434.763) 6,3% 10,1% (349.371) 3,2% (1.020.330) (921.156) 10,8% -4,1% (120.545) 5,2% (362.259) (357.377) 1,4% (52.500) -2,2% (47.797) 7,4% (142.758) (156.230) -8,6% 2.128.017 9,8% 2.231.538 4,7% 6.585.998 6.152.223 7,1% 1.760.153 9,7% 1.844.368 4,7% 5.414.206 5.036.221 7,5% 17,8% 1.214.167 4,3% 3.522.441 3.119.841 12,9% -2,5% 455.718 5,0% 1.372.152 1.342.252 2,2% 194.053 -4,1% 174.483 6,7% 519.613 574.128 -9,5% 367.864 9,9% 387.170 4,5% 1.171.792 1.116.002 5,0% 11,1% 355.980 5,8% 1.082.841 1.013.459 6,8% 9,9% 15.586 12,5% 49.693 54.604 -9,0% 13.027 -21,1% 15.604 -34,1% 39.258 47.939 -18,1% 6.144 230,8% 40.852 -50,2% 98.673 122.361 -19,4% (1.376.292) 0,2% (1.340.871) 2,9% (3.906.138) (3.932.368) -0,7% (255.189) (191.311) 33,4% (296.671) -14,0% (770.731) (605.236) 27,3% (76.428) 104,6% (84.855) 84,3% (338.923) (313.901) 8,0% 490.130 15,3% 549.993 2,8% 1.668.879 1.423.079 17,3% (283.977) 19,3% (315.884) 7,2% (937.034) (885.325) 5,8% expenses (74.771) (71.139) 5,1% (74.704) 0,1% (225.469) (230.814) -2,3% (3.691) 4,5% (3.870) -0,4% (11.484) (12.108) -5,2% 60.866 -351,6% 11.972 -1379,0% (145.134) 74.573 -294,6% 2.533 -18,6% 26.867 -92,3% 109.446 220.330 -50,3% FINANCIAL RESULTS (3.329) 194.722 -101,7% 194.374 -101,7% 459.204 589.735 -22,1% 113.605 13,2% 108.373 18,6% 368.626 286.813 28,5% (326.612) 6,6% (306.263) 13,7% (999.019) (892.791) 11,9% AND SOCIAL CONTRIBUTION (222.873) (18.285) 1118,9% (3.516) 6238,8% (171.189) (16.243) 953,9% contribution - current (30.983) (17.632) 75,7% (28.713) 7,9% (85.200) (73.696) 15,6% contribution - deferred 111.628 50.109 122,8% 47.109 137,0% 200.953 201.273 -0,2% 14.192 -1102,2% 14.880 -1055,8% (55.436) 111.334 -149,8%

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RESULTADOS 3T26 Demonstrativo do Fluxo de Caixa CASH FLOW 3Q26 3Q25 % 2Q26 9m26 9m25 Profit before tax. Income and Social Contribution (222.873) (18.285) (3.516) (171.189) (16.243) Depreciation, amortization and depletion 424.071 279.162 51,9% 393.186 7,9% 1.146.265 955.174 20,0% Change in the fair value of biological assets (20.324) (6.144) 230,8% (40.852) -50,2% (98.673) (122.361) -19,4% Interest, net exchange and monetary variations 308.931 251.031 23,1% 264.635 16,7% 859.937 722.245 19,1% Interest on leases 2.735 2.327 17,5% 3.060 -10,6% 8.720 7.072 23,3% Equity Income (2.061) (2.533) -18,6% (26.867) -92,3% (109.446) (220.330) -50,3% Impairment of trade accounts receivable 23.796 1.351 1661,4% 7.556 214,9% 43.221 11.008 292,6% Impairment of intangible assets 168.043 - 0,0% - 0,0% 168.043 - 0,0% Provisions, write-off of assets 25.742 (44.090) -158,4% 107.426 -76,0% 133.764 33.984 293,6% Accounts receivable from customers 122.552 (103.505) (59) 70.556 (420.775) Accounts receivable from customers 8.100 9.460 -14,4% (76.475) -110,6% (155.525) 35.408 -539,2% Stocks 79.736 (85.487) -193,3% (595) -13501,0% 24.647 (282.193) -108,7% Taxes and contributions to be recovered 42.875 (34.613) -223,9% 90.190 47,5% 202.752 12.130 1571,5% Linked deposits (2.541) 871 -391,7% 4.434 -57,3% 7.702 5.450 41,3% Other Assets (29.689) (1.459) 1934,9% (73.120) -59,4% (186.952) (26.143) 615,1% Providers (24.457) (122.679) -80,1% 48.726 -150,2% (11.604) (161.519) -92,8% Staff Obligations 39.649 31.429 26,2% 26.416 50,1% 35.069 46.816 -25,1% Bills to pay (2.486) 48.498 -105,1% 9.336 -126,6% 169.231 (26.500) -738,6% Taxes and Contributions 20.765 57.404 -63,8% (19.687) -205,5% 32.778 21.267 54,1% Statutory holdings - - 0,0% - 100,0% (16.882) (18.849) -10,4% Provisions for contingencies (non-current) (9.400) (6.929) 35,7% (9.284) 101,2% (30.660) (26.642) 15,1% Cash from Operations 830.612 359.314 704.569 2.051.198 949.774 Income Tax and Social Contribution Paid (25.869) (16.649) 55,4% (14.075) 83,8% (56.496) (78.986) -28,5% Interest Paid (5.466) (85.555) -93,6% (399.742) -98,6% (428.202) (330.680) 29,5% Cash generated by operating activities 799.277 257.110 290.752 1.566.500 540.108 Marketable Securities - (17.013) -100,0% - 0,0% - (17.013) -100,0% Investments in Fixed Assets (88.329) (83.880) 5,3% (67.359) 31,1% (186.654) (257.307) -27,5% Investments in Intangible Assets (2.645) (1.600) 65,3% (5.154) -48,7% (8.054) (4.000) 101,4% Investments in Biological Assets (179.764) (104.630) 71,8% (175.699) 2,3% (477.452) (325.852) 46,5% Receipt for Sale of Fixed Assets 153.471 36.000 326,3% 97.605 57,2% 259.086 36.000 619,7% Acquisition of subsidiaries, net of cash acquired - - 0,0% (12.000) -100,0% (12.000) (86.796) -86,2% Capital increase in subsidiaries - - 0,0% 1 -100,0% (28.581) (52.129) -45,2% Financial Aplications 48.677 330.305 -85,3% 57.359 -15,1% 101.750 253.053 -59,8% Cash Used in Investing Activities (68.590) 159.182 -143,1% (105.247) -34,8% (351.905) (454.044) -22,5% Interest on own capital and dividends Funding Tickets - - 0,0% - 0,0% 292.883 498.123 -41,2% Amortization of the principal amount of financing (61) (373) -83,6% (500.508) -100,0% (615.011) (400.646) 53,5% Debt Derivatives Payment (28.370) (30.371) -6,6% (11.847) 139,5% (79.421) (87.700) -9,4% Amortization of Lease Liabilities (41.328) (40.280) 2,6% (43.681) -5,4% (128.335) (114.980) 11,6% Interest on Equity and Dividends (22.359) (2.166) 932,3% (62.934) -64,5% (85.293) (2.166) 3837,8% Increase in capital of non-controlling partners 871 - 100,0% 7.168 -87,8% 208.040 5.175 3920,1% Cash Generated (used) in Financing Activities (91.247) (73.190) 24,7% (611.802) -85,1% (407.137) (102.194) 298,4% Exchange variation on cash and cash equivalents 13.177 (2.357) -659,1% 21.871 -39,8% 26.606 (12.596) -311,2% Increase (decrease) in cash in the period / year 652.617 340.745 92% (404.426) -261,4% 834.064 (28.726) -3004% Opening balance 2.359.909 861.948 174% 2.764.335 -14,6% 2.178.462 1.231.419 77% Final balance 3.012.526 1.202.693 150% 2.359.909 27,7% 3.012.526 1.202.693 150%

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RESULTADOS 3T26 Non-Recurring Events Non-Recurring Events (Adjusted and Recurring EBITDA) Non-recurring events (Adjusted and Recurring EBITDA) BRL '000 - consolidated 3Q26 3Q25 2Q26 9m/26 9m/25 EBITDA Resolution CVM 156/22 420.742 474.775 587.560 1.605.469 1.544.962 Restructuring and Discontinuation of Operations 179.436 28.251 72.375 251.810 62.340 Prior-Period Tax Credits and Tax Contingencies 9.861 - - 9.861 (1.034) ICMS Gross-Up in the PIS/COFINS Tax Base - (20.617) - - (38.355) Consulting Expenses - - - - 4.970 Negotiation of Eletrobras Credits (3.031) (3.031) Gain on Sale of Farms - Colombia (41.574) (41.574) Gain on Sale of Farms - - (43.704) (43.704) - Costs Related to Start-Up Inefficiencies at Botucatu – Ceramic Tiles - 14.948 - - 44.734 Dissolving Wood Pulp (2.236) (1.419) (28.120) (111.131) (220.292) Change in Fair Value of Biological Assets (20.324) (6.144) (40.852) (98.673) (122.361) Employee Benefits (2.041) (164) 129 (2.848) 2.968 Adjusted and Recurring EBITDA 585.438 445.025 547.388 1.610.784 1.233.327 R$ 000 - Wood 3Q26 3Q25 2Q26 9m/26 9m/25 EBITDA Resolution CVM 156/22 549.831 458.394 572.377 1.602.252 1.360.049 Extemporaneous Tax Credits and Tax Contingencies 9.861 - - 9.861 (1.034) Gross-up ICMS from the PIS and COFINS base - (12.273) - - (22.812) Consulting Expenses - 2.023 Negotiation of Eletrobras Credits (3.031) (3.031) Gain on Sale of Farms - Colombia (41.574) (41.574) Gain on Sale of Farms - (43.704) (43.704) - Change in Fair Value of Biological Assets (20.324) (6.144) (40.852) (98.673) (122.361) Employee Benefits (4.204) (1.146) (2.696) (7.499) 793 Adjusted and Recurring EBITDA 535.164 394.226 485.125 1.462.237 1.172.053 R$ 000 - Metals and Sanitary Ware 3Q26 3Q25 2Q26 9m/26 9m/25 EBITDA Resolution CVM 156/22 (116.960) 28.402 52.926 (24.266) 34.307 Gross-up ICMS from the PIS and COFINS base - (5.650) - - (12.302) Consulting - - - - 2.279 Exit from the shower and faucet business - 2.060 - - 11.445 Employee Benefits 2.163 1.092 2.674 4.575 2.485 Restructuring - Sanitary Ware and Fittings 171.876 26.191 171.876 30.678 Adjusted and Recurring EBITDA 57.079 52.095 55.600 152.185 68.892 - - - - - R$ 000 - Ceramic Tiles 3Q26 3Q25 2Q26 9m/26 9m/25 EBITDA Resolution CVM 156/22 (14.365) (13.440) (65.863) (83.648) (69.686) Operations Restructuring 7.560 - 72.375 79.934 20.217 Gross up ICMS from the PIS and COFINS Base (2.694) (3.241) Consulting - - - - 668 Costs of Inefficiency Startup Botucatu - RC - 14.948 - - 44.734 Employee Benefits - (110) 151 76 (310) Adjusted and Recurring EBITDA (6.805) (1.296) 6.663 (3.638) (7.618)

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RESULTADOS 3T26 Non-Recurring Events (Recurring Net Income) BRL '000 - consolidated 3Q26 3Q25 2Q26 9m/26 9m/25 Net Income (142.228) 14.192 14.880 (55.436) 111.334 Restructuring and Discontinuation of Operations 118.427 14.606 47.768 166.195 42.658 Gross-up ICMS from the PIS and COFINS base (39.333) - - (64.130) Consulting 3.280 Negotiation of Eletrobras Credits (2.000) (2.000) Result of farm sales - - (28.845) (28.845) - Gain on Sale of Farms - Colombia (40.086) (40.086) Prior-Period Tax Credits and Tax Contingencies 6.508 - - 6.508 (641) Costs in the Inefficiency of Startup Botucatu - RC - 9.865 - - 20.568 Fair Value of Investment Funds 11.790 11.790 Recurring Net Income (5.503) (42.756) 33.803 100.212 70.983

Earnings release

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Earnings release

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