Earnings release
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2 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS GCC REPORTS THIRD QUARTER 2026 RESULTS Chihuahua, Mexico, October 27, 2026 – GCC, S.A.B. de C.V. (BMV: GCC*), a leading supplier and producer of cement, aggregates, and concrete in the United States and Mexico, announced today its results for the third quarter of 2026. Q3 2026 HIGHLIGHTS • Consolidated net sales decreased 1.2% year-on-year to US$433.1 million • U.S. sales decreased 4.7% as concrete volumes declined 18.6% • Mexico sales grew 11.5% as cement volumes increased 4.7% • Mexico cement and concrete prices increased 3.2% and 2.7%, respectively • EBITDA decreased 5.8% to US$148.4 million, with a 34.3% EBITDA margin • Cash and equivalents totaled US$887.7 million • Net leverage (net debt/EBITDA) ratio totaled -0.51x as of September 2026 • Earnings per share totaled US$0.1811 • Free cash flow totaled US$121.1 million with an 81.6% free cash flow conversion rate • GCC repurchased shares in the net amount of US$5.7 million • GCC completed the acquisition of concrete operations in the Midland-Odessa region KEY FIGURES (millions of dollars) Q3 26 Q3 25 Q3 26 vs. Q3 25 9M 26 9M 25 9M 26 vs. 9M 25 Net sales 433.1 438.5 -1.2% 1,147.0 1,048.9 9.3% Operating income before other expenses, net 112.3 129.0 -12.9% 273.2 267.8 2.0% EBITDA* 148.4 157.6 -5.8% 368.5 349.3 5.5% EBITDA margin 34.3% 35.9% 32.1% 33.3% Free cash flow** 121.1 132.6 -8.7% 171.9 193.2 -11.0% Net income 59.0 101.1 -41.6% 181.5 214.9 -15.5% Earnings per share (US$) *** 0.1811 0.3082 -41.2% 0.5563 0.6557 -15.2% *EBITDA: Operating income before other expenses + depreciation and amortization **Free cash flow before growth and strategic CapEx ***Earnings per share calculated based on average number of outstanding shares during the quarter
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3 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS Enrique Escalante, GCC’s Chief Executive Officer, commented: “GCC’s third-quarter performance reflected short-term weather disruption, while underlying demand across our key markets remained healthy and year-to-date cement volumes continued to grow.” Enrique continued: “The quarter also marked an important milestone with the first sales from the new Odessa production line. As we look ahead, our focus remains on operational execution and customer service, while positioning the business for 2027 through a more efficient network, disciplined capital allocation, and continued growth across our core markets.” FINANCIAL RESULTS Consolidated net sales for the third quarter of 2026 decreased by 1.2% year-on-year to US$433.1 million, down from US$438.5 million in the third quarter of 2025. This was primarily due to decreased concrete and cement volumes in the United States and decreased concrete volumes in Mexico, as well as lower cement and concrete prices in the United States. This was partially offset by increased cement volumes in Mexico and increased cement and concrete prices in Mexico. Nine months: Consolidated net sales increased by 9.3% to US$1,147 million. This result was driven by higher cement and concrete volumes in the United States, higher cement volumes in Mexico, increased concrete and cement prices in Mexico, and higher concrete prices in the United States, as well as the appreciation of the Mexican peso against the U.S. dollar. These gains were partially offset by lower concrete volumes in Mexico and lower cement prices in the United States. *Prices in local currency NET SALES (millions of dollars) Q3 26 Q3 25 Q3 26 vs. Q3 25 9M 26 9M 25 9M 26 vs. 9M 25 Consolidated 433.1 438.5 -1.2% 1,147.0 1,048.9 9.3% United States 327.7 344.0 -4.7% 832.6 784.0 6.2% Mexico 105.4 94.5 11.5% 314.4 265.0 18.6% Q3 26 vs. Q3 25 9M 26 vs. 9M 25 Volumes Prices* Volumes Prices* Cement United States -0.5% -2.8% 6.0% -2.8% Mexico 4.7% 3.2% 7.7% 0.9% Concrete United States -18.6% -2.2% 1.7% 4.1% Mexico -7.8% 2.7% -1.0% 4.6%
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4 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS U.S. sales for the third quarter of 2026 decreased by 4.7% to US$327.7 million, representing 76% of GCC’s consolidated net sales. This decrease was primarily driven by an 18.6% and 0.5% decrease in concrete and cement volumes, respectively, and a 2.8% and 2.2% decrease in cement and concrete prices, respectively. The most dynamic market segment during the quarter was infrastructure. Nine months: U.S. sales increased by 6.2% to US$832.6 million. This growth was primarily driven by a 6% and 1.7% increase in cement and concrete volumes, respectively, and a 4.1% increase in concrete prices, partially offset by a 2.8% decrease in cement prices. Mexico sales increased by 11.5% in the third quarter of 2026 to US$105.4 million, representing 24% of GCC’s consolidated net sales. This increase was driven by a 4.7% increase in cement volumes and a 3.2% and 2.7% increase in cement and concrete prices, respectively, partially offset by a 7.8% decrease in concrete volumes. Mexico sales during the quarter were primarily driven by demand related to the retail and infrastructure segments. Nine months: Mexico sales increased by 18.6% to US$314.4 million, driven by a 7.7% increase in cement volumes, and a 4.6% and 0.9% increase in concrete and cement prices, respectively, partially offset by a 1% decrease in concrete volumes. Cost of sales totaled US$286.4 million for the third quarter of 2026, representing 66.1% of total sales, a 2.4 percentage-point increase. This result was primarily driven by increased production expenses, increased costs related to the businesses acquired during the year, higher transfer freight expenses, and decreased cement prices in the United States, partially offset by a favorable sales mix and lower production costs. Nine months: Cost of sales represented 67.5% of revenues, a 1.5 percentage-point year-over-year increase. This was the result of higher exports from Mexico to the U.S., increased production expenses, decreased cement prices in the United States, increased costs related to the businesses acquired during the year, higher transfer freight expenses and increased production costs, partially offset by favorable operating leverage. Selling, general, and administrative expenses totaled US$34.4 million in the third quarter of 2026, compared to US$30.3 million in the prior-year period, a 13.6% increase. This increase was driven primarily by the appreciation of the Mexican peso against the U.S. dollar, increased expenses related to the businesses acquired during the year, and the annual salary adjustment. Nine months: Selling, general, and administrative expenses totaled US$100.1 million, compared to US$88.7 million in the prior-year period, a 12.9% increase. This was a result of the same reasons impacting the third quarter.
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5 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS Operating income before other expenses decreased 12.9% to US$112.3 million in the third quarter of 2026, compared to US$129 million in the third quarter of 2025. Nine months: Operating income before other expenses increased 2% to US$273.2 million. Other expenses totaled US$1.5 million in the third quarter of 2026, compared to US$1.2 million in the third quarter of 2025. Nine months: Other expenses totaled US$3.8 million, compared to US$4.6 million in the prior-year period, an 18.5% decrease. Operating income decreased 13.3% to US$110.8 million in the third quarter of 2026, compared to US$127.8 million in the third quarter of 2025. Nine months: Operating income increased 2.4% to US$269.4 million. As a result, third quarter 2026 EBITDA decreased by 5.8% to US$148.4 million. The third quarter 2026 EBITDA margin was 34.3%, a 1.6 percentage-point decrease. 79% of third quarter 2026 EBITDA was generated by the Company’s U.S. operations and 21% by its Mexico operations. Nine months: EBITDA increased 5.5% to US$368.5 million, while the EBITDA margin decreased 1.2 percentage points to 32.1%. GCC’s U.S. operations generated 76% of EBITDA, while Mexico accounted for 24% of EBITDA. Net financial expenses totaled US$10.6 million in the third quarter of 2026, compared to US$9 million of net financial income in the prior-year period. This was primarily driven by higher financial expenses related to a tax self-correction associated with prior years and inflation effects, as well as lower financial income resulting from decreased interest rates in Mexico. Nine months: Net financial expenses totaled US$1.7 million, compared to US$25 million of net financial income in the prior-year period, as a result of the same reasons impacting the third quarter. Income tax totaled US$41.3 million for the third quarter of 2026, compared to US$36.3 million in the prior-year period, a 13.7% increase, primarily reflecting a tax self-correction associated with prior years in Mexico. Nine months: Income tax totaled US$87.4 million, a 16.1% year-on-year increase. This was a result of the same reasons impacting the third quarter.
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6 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS Consolidated net income was US$59 million for the third quarter of 2026, a 41.6% decrease compared to US$101.1 million in the third quarter of 2025. Nine months: Consolidated net income decreased 15.5% and totaled US$181.5 million, compared to US$214.9 million for the same period in 2025. Earnings per share was US$0.1811 in the third quarter of 2026, compared to US$0.3082 in the third quarter of 2025, a 41.2% decrease. Nine months: Earnings per share totaled US$0.5563, compared to US$0.6557 in the prior-year period, a 15.2% year-over-year decrease. Free cash flow was US$121.1 million in the third quarter of 2026, compared to US$132.6 million for the same period in 2025; an 8.7% decrease. This result was due to higher cash taxes and lower EBITDA generation, partially offset by lower working capital requirements and lower maintenance CapEx. Nine months: Free cash flow was US$171.9 million, compared to US$193.2 million for the same period in 2025, an 11% decrease. This result was primarily due to higher cash taxes, lower interest income and higher working capital requirements, partially offset by higher EBITDA generation. Asset purchases totaled US$13.3 million in the third quarter of 2026, reflecting the acquisition of concrete operations in the Midland-Odessa region. Nine months: Asset purchases totaled US$104.2 million, reflecting the acquisition of aggregates, concrete, and asphalt operations in Texas.
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7 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS FREE CASH FLOW (millions of dollars) Q3 26 Q3 25 Var 9M 26 9M 25 Var Operating income before other expenses 112.3 129.0 -12.9% 273.2 267.8 2.0% Depreciation and amortization 36.1 28.6 26.2% 95.3 81.5 16.9% EBITDA 148.4 157.6 -5.8% 368.5 349.3 5.5% Interest income (expense) 8.3 7.9 5.5% 13.4 22.8 -41.3% Decrease (increase) in working capital 7.3 (15.2) n.m. (67.2) (65.5) 2.6% Taxes (38.5) (9.1) n.m. (77.8) (42.1) 84.8% Prepaid expenses (6.3) (5.6) 12.6% (1.9) (1.7) 9.0% Accruals and other accounts 22.9 20.9 9.5% (5.2) (12.1) -57.2% Operating leases (IFRS 16 effect) (3.7) (3.5) 4.6% (10.6) (10.1) 5.2% Operating cash flow 138.4 152.9 -9.5% 219.2 240.6 -8.9% Maintenance CapEx (17.3) (20.3) -14.5% (47.3) (47.4) -0.2% Free cash flow 121.1 132.6 -8.7% 171.9 193.2 -11.0% Strategic & Growth CapEx (27.2) (85.8) -68.3% (103.8) (241.3) -57.0% Shares repurchase, net (5.7) (7.1) -20.3% (15.8) (7.6) 108.2% Shares purchase of related parties 0.0 0.0 n.m. (4.8) 0.0 n.m. Purchase of assets (13.3) (22.1) -39.7% (104.2) (22.1) n.m. Debt additions 5.9 0.0 n.m. 5.9 100.0 -94.1% Dividends paid 0.0 0.0 n.m. (38.3) (29.8) 28.6% FX effect (5.6) 9.2 n.m. 7.2 30.6 -76.4% Initial cash balance 812.5 826.9 -1.7% 969.5 830.6 16.7% Final cash balance 887.7 853.7 4.0% 887.7 853.7 4.0% FCF conversion rate* 81.6% 84.1% 46.7% 55.3% *Free cash flow conversion rate: Free cash flow after maintenance CapEx/EBITDA Total debt was US$630 million as of September 30, 2026, based on contractual balances, reflecting a 5% year-on-year increase. Long-term debt represented 99.5% of the Company’s total debt. As of September 30, 2026, 100% of GCC’s debt was denominated in U.S. dollars. Net leverage (net debt/EBITDA) at the end of the third quarter of 2026 was -0.51 times, compared to -0.37 times as of June 30, 2026, in accordance with GCC’s contractual obligations. INTEREST-BEARING DEBT* (millions of dollars) September 2026 September 2025 2026 vs. 2025 Total 630.0 600.0 5.0% Short-term 3.3 0.0 n.m. Long-term 626.7 600.0 4.5% *Excludes amortizable commissions and issuance expenses
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8 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS REVISED OUTLOOK FOR 2026 United States Volumes Cement Mid-single digit increase Concrete Low-single digit increase Prices (US$) Cement Low-single digit decrease Concrete Low-single digit increase Mexico Volumes Cement Mid-single digit increase Concrete Low-single digit increase Prices (MXN$) Cement Low-single digit increase Concrete Consolidated EBITDA Growth Low-single digit increase FCF Conversion Rate > 60% Total CapEx US$220 million Growth $150 Maintenance $70 Net Debt / EBITDA, year-end Negative BASIS OF PREPARATION FOR FINANCIAL STATEMENTS The financial statements were prepared in accordance with International Financial Reporting Standards (IFRS) and use the U.S. dollar as the reporting currency. Currency translations from pesos to U.S. dollars are based on the average monthly exchange rates published by Banco de México, as shown below. EXCHANGE RATES (pesos per U.S. dollar) 2026 2025 Third quarter average 17.2562 18.6401 As of September 30 17.8413 18.3825 Accumulated average 17.4048 19.5302 Unless otherwise stated, all percentage changes refer to the third quarter (or nine months) of 2026 compared to the corresponding periods in 2025.
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9 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS ANALYST COVERAGE Analysts at the following brokerages currently cover GCC’s shares: 1. Actinver 2. Bank of America Merrill Lynch 3. BBVA 4. Bradesco BBI 5. Citigroup 6. Data Based Analysis 7. GBM - Grupo Bursátil Mexicano 8. Grupo Financiero Banorte 9. Grupo Financiero Ve por Más 10. Itaú BBA 11. J.P. Morgan 12. Morgan Stanley 13. Santander 14. Scotiabank MATERIAL EVENTS GCC announces settlement and payment in connection with favorable arbitral award Following the favorable arbitral award obtained on November 5, 2025, GCC entered into a settlement agreement and received a gross payment of US$71.5 million. The arbitration proceeding arose in connection with GCC’s sale, in 2011, of its equity interest in SOBOCE, S.A. to Consorcio Cementero del Sur, S.A. As a result of the execution of the settlement agreement and receipt of the payment, the dispute has been fully and finally resolved, with no further liability for GCC in connection therewith.
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10 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS CONFERENCE CALL GCC, S.A.B. de C.V. will host its earnings conference call on October 28, 2026. Time: 11 a.m. Eastern Time (New York) / 9 a.m. Central Time (Mexico City) Conference ID: 13757650 Dial in: U.S. (toll free): 1-877-407-0789 International: 1-201-689-8562 Replay (through November 4, 2026, 11:59 p.m. ET): U.S. (toll free): 1-844-512-2921 International: 1-412-317-6671 Listen-only webcast and replay: click here.
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11 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS Income Statement (Thousands of dollars)
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12 Q3 2026 EARNINGS FOR MORE INFORMATION: investors@gcc.com Cumulative Income Statement to September (Thousands of dollars)
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13 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS Statement of Financial Position (Thousands of dollars)
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14 FOR MORE INFORMATION: investors@gcc.com Q3 2026 EARNINGS ABOUT GCC GCC is a leading supplier and producer of cement, aggregates, concrete, and construction-related services in the United States and Mexico. The Company has an annual cement production capacity of 7.1 million metric tons. The Company, founded in 1941, has its shares listed on the Mexican Stock Exchange under the ticker symbol GCC*. This earnings report may contain forward-looking statements. All statements that are not clearly historical in nature are forward-looking, and words such as “anticipate,” “believe,” “expect,” “estimate,” “intend,” “project,” and similar expressions are generally intended to identify forward-looking statements. These statements are subject to risks and uncertainties, including but not limited to changes in macroeconomic, political, legal, and public health conditions, governmental or business conditions in the markets where GCC operates, changes in interest rates, inflation rates, and currency exchange rates, as well as the performance of the construction industry, pricing, business strategy, and other factors. If one or more of these risks or uncertainties materialize, or if underlying assumptions prove incorrect, actual results may differ materially from the beliefs, projections, and estimates described herein. GCC assumes no obligation to update the information contained in this earnings report. Due to rounding, numbers presented throughout this document may not add up precisely to the totals provided, and percentages may not precisely reflect the absolute figures.