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Copyright © TOTO LTD. All Rights Reserved. TOTO LTD. July 31, 2026 This notice has been translated from the original notice in Japanese. In the event of any discrepancy, the original in Japanese shall prevail. Security Code: 5332 First Quarter Results for Fiscal Year Ending March 2027
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Copyright © TOTO LTD. All Rights Reserved. 2 Japan International Sanitary Ware WASHLET Global Housing Equipment Business Main Products Faucet Fixtures Bathtubs/ System Bathrooms, Vanity units, Modular kitchens, etc. Introduction: TOTO Business Overview - TOTO’s core business that has been built up over 100 years - The core business is the Remodeling sector, which does not rely on new construction demand. We offer a wide range of products. - Profits are gradually declining due to various cost increases. Structural reforms are underway to improve profitability. - Aiming to become an indispensable presence in each country and region. - Americas, and Asia are the growth markets based mainly on WASHLET and water-saving toilets. - In the Mainland China Business, as performance had deteriorated sharply, structural reforms are underway. The core business and growth driver. Has the highest profitability in the housing equipment business. Leading the world with superior quality Pursuing design and water efficiency * The sales distribution ratios and operating profits composition ratios are based on FY2025 results, excluding company-wide adjustments. Sales distribution ratio Operating profits composition 65％ 26％ 36％ 13％ Development System Research Institute and various business divisions Creating value by developing proprietary technologies Proprietary Core Technologies Basic research and analysis Production technology development TOTO Group Development System and Production System Advanced forming and firing technologies for sanitary ware Faucet polishing and machining technologies Applying housing equipment technologies to product development and manufacturing in advanced ceramics business <Advanced Ceramics Business> Ex: AD components Electrostatic chucks
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Copyright © TOTO LTD. All Rights Reserved. New Business Domains (Advanced Ceramics Business) Introduction: TOTO Business Overview * The sales distribution ratios and operating profits composition ratios are based on FY2025 results, excluding company-wide adjustments. ・Core products are high-grade, high-precision ceramic components for semiconductor manufacturing equipment. ・Achieving high profitability by collaborating with all TOTO group business divisions in R&D and manufacturing 51％ Sales distribution ratio Operating profits composition • Components used to hold wafers in place inside semiconductor manufacturing equipment. • Made of high-purity ceramics, these components are highly regarded for their exceptional durability and are used in ultra-low-temperature etching processes in equipment for manufacturing NAND flash memory. AD components • Components used as ceiling materials inside semiconductor manufacturing equipment. • Ceramic films formed using TOTO’s proprietary AD method* are dense and have strong adhesion, providing high plasma resistance and preventing the generation of ultrafine particles. • Used in etching processes in equipment for manufacturing logic semiconductors. * Aerosol deposition method Electrostatic chucks Plasma Gas supply Gas exhaust The wafer surface is processed through chemical reactions and the physical action of ions. Dense, sintered ceramics are used because outstanding plasma resistance is required. Wafer AD components Chamber (inside the equipment) Usage Example Wafer AD components Electrostatic chucks Logic semiconductors that process data Memory semiconductors that store data Installed in manufacturing equipment Data centers Product Positioning TOTO 3 Electrostatic chucks Main Products 9％
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Copyright © TOTO LTD. All Rights Reserved. 4 First Quarter Results for Fiscal Year Ending March 2027 (FY2026) 4
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Copyright © TOTO LTD. All Rights Reserved. 5 Highlights Japan Housing Equipment Business : Decreased sales and profits International Housing Equipment Business: Increased sales and decreased profits New Business Domains (Advanced Ceramics Business) : Increased sales and profits ◆ Sales and profits decreased due to lower sales of bathroom products caused by the situation in the Middle East and increased external procurement costs, among other factors. ◆ Net sales were in line with the plan, which incorporated the above impacts, while operating profit exceeded the plan. ◆ In the Americas Business, sales increased, driven by factors including new sanitary ware products, while loss was posted due to growth investments. (The aggregate results of group companies were profitable.) ◆ In the Asia Business, sales increased and profits decreased. Sales in key markets such as the Taiwan region and Vietnam remained strong. ◆ In the European Business, sales increased and the business posted a profit due to continued growth of WASHLET sales. ◆ In the Mainland China Business, sales increased due to strong retail sales. Losses were significantly reduced due to the effects of business restructuring. (The aggregate results of group companies turned profitable.) ◆ Both net sales and operating profit for the International Housing Equipment Business as a whole are progressing according to plan. ◆ Despite shipment timing shifts due to supply chain impacts, sales and profits increased due to foreign exchange effects. ◆ Although 1Q fell short of the plan, the impact is temporary and we expect to make up the shortfall in 2Q. Increased sales and decreased profits; progress is generally on track with the plan
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Copyright © TOTO LTD. All Rights Reserved. 2025 January to March 2025 April to June 2025 July to Septembe 2025 October to December 2026 January to March 2026 April to June 1 $ ¥152.6 ¥144.6 ¥147.5 ¥154.1 ¥157.0 ¥159.6 1 CNY ¥20.9 ¥20.0 ¥20.6 ¥21.7 ¥22.7 ¥23.5 1 € ¥160.6 ¥163.8 ¥172.3 ¥179.4 ¥183.7 ¥185.4 1 TWD ¥4.6 ¥4.7 ¥4.9 ¥5.0 ¥5.0 ¥5.1 1 VND ¥0.0060 ¥0.0056 ¥0.0056 ¥0.0059 ¥0.0060 ¥0.0061 1 THB ¥4.5 ¥4.4 ¥4.6 ¥4.8 ¥5.0 ¥4.9 1 INR ¥1.8 ¥1.7 ¥1.7 ¥1.7 ¥1.7 ¥1.7 6 ■ Japan H.E. business, New business domains April to June 2026 ■ Exchange rates (period average) ■ International H.E. business January to March 2026 (April to June 2026 for India) *Subject periods and segments Financial results Unit: Y billion Increased sales and decreased profits Influence of Currency- 1Q 1Q exchange rate neutral basis +2.9 -0.8 (102%) (99.5%) -0.1 -0.7 (98%) (91%) [Operating Margin] 【5.0%】 【4.8%】 【-0.2pt】 Recurring +0.6 -2.1 Profit (107%) (77%) Profit attributable to owners of parent +0.6 -1.2 Company (110%) (81%) Operating Profit 8.2 8.1 8.7 9.4 FY25 FY26 165.7 168.6 +0.6 +2.7 +1.86.3 6.9 YoY Net Sales +3.7
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Copyright © TOTO LTD. All Rights Reserved. 7 8.1 -2.6 -0.3 8.2 +2.5 -2.4 -2.1 -0.0 +0.2 +0.6 +3.9 +0.0 Cost reduction Human resources investment IT related investment Strengthen- ing sales investment, etc. 1Q, FY26 OP Increase/decre ase in sales and product range differences etc. External procurement cost Depreciation Develop- ment/ production investment Exchange rate 1Q, FY25 OP Price revision effect Unit: Y billionCause of increase/decrease of operating profits Despite lower sales due to the situation in the Middle East and increased external procurement costs, operating profit was on par with the previous year, supported by cost reductions and the effects of price revisions. Impact of the situation in the Middle East on performance (operating profit): Decrease of approx. 3.0 billion yen Impact of rising prices of copper, electronic components, and resins
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Copyright © TOTO LTD. All Rights Reserved. 8 Unit: Y billion *New business domains : Advanced Ceramics business Sales and profits by business segment * Subject periods and segments Japan H.E. business, New business domain: April to June, 2026 International H.E. Business: January to March 2026 (April to June 2026 for India) The Japan Housing Equipment Business saw decreases in sales and profits, the International Housing Equipment Business saw increased sales and decreased profits, and the new business domains (Advanced Ceramics Business) saw increases in sales and profits. *The method for allocating common expenses has been partially revised. (Prior-year figures have also been retroactively adjusted.) Influence of Currency- 1Q 1Q exchange impact neutral basis -0.5 +0.4 (54%) (134%) -0.2 -0.4 (91%) (78%) +0.6 -0.7 (110%) (88%) -0.1 -0.7 (98%) (91%) New business domains 5.9 6.5 +1.3 Others -0.0 Total 8.2 8.1 +0.6 FY26 YoY＜Operating Profit＞ FY25 -0.6 -0.6 -0.0 ▲0.9 +0.2 Japan H.E. 1.2 0.6 International H.E. 1.7 1.6 * * Influence of Currency- 1Q 1Q exchange rate neutral basis -2.8 -2.8 (97%) (97%) +4.8 +2.4 (111%) (106%) +0.9 -0.4 (106%) (97%) +2.9 -0.8 (102%) (99.5%) +1.315.1 16.0 0.1 0.1 +0.0 +0.0 Japan H.E. 108.4 105.6 International H.E. 42.2 47.0 +2.3 ＜Net Sales＞ FY25 FY26 YoY New business domains Others Total 165.7 168.6 +3.7 -
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Copyright © TOTO LTD. All Rights Reserved. 9 〈Commercial remodeling〉 Base segmentJapan Housing Equipment Business: Performance by demand Remodeling (YoY) New Housing (YoY) Net Sales JPY 75.1 billion (98%) Operating profits JPY 1.2 billion (-0.4 billion yen) Net Sales JPY 30.5 billion (96%) Operating profits JPY 0.6 billion (-0.1 billion yen) Current status of Remodeling business Progressing as planned Sales to lodging facilities remained strong. • Sales of WASHLET integrated toilets and modular bathrooms grew by double digits, driven by guest room renovations. • Increases in inbound tourism, domestic tourism, business travel, and large-scale events are supporting continued market expansion. Sales to offices also continued to grow year on year. • Major metropolitan areas have a large stock of office buildings. • Investment is also increasing to support returning to the office and attracting and retaining talent. Orders for bathroom products gradually resumed, and normal order acceptance resumed on June 9. There are no issues with any other products. New Product to Launch in August 2026: WASHLET for Hotels Sales decreased due to the gradual resumption of orders for the bathroom products. Profit decreased due to higher external procurement costs resulting from the situation in the Middle East and investment in human resources. (Price revisions will be implemented in December 2026.) Incorporating an instant water- heating system that provides warm water on demand, achieving both guest comfort and facility energy efficiency. 〈Status of Structural Reforms〉 〈Status of Supply chain〉
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Copyright © TOTO LTD. All Rights Reserved. 10 Price Revisions in the Japan Housing Equipment Business Price Revisions Effective for orders received on or after December 1, 2026 ■ Main Products Subject to Price Revision and Revision Rates Applicable Products Revision Rate Sanitary Ware 13% System Toilets 9% WASHLET (Seat / Toilet integrated) 10% Faucet Fixtures 8% Modular bathrooms 8% Vanity Units 9% Other Products 9% Due to the continued surge in raw material prices and the added impact of the situation in the Middle East, we determined that these cost pressures could no longer be absorbed solely through internal efforts, such as cost reduction through productivity improvements and rationalization. As a result, we will implement price revisions in our Japan Housing Equipment Business.).
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Copyright © TOTO LTD. All Rights Reserved. 11 International Housing Equipment Business Unit: Y billion *Including consolidation adjustments and allocations of common expenses The International Housing Equipment Business as a whole saw increased sales and decreased profits. Influence of Currency- 1Q 1Q exchange rate neutral basis +1.3 +0.7 (107%) (104%) +1.5 +0.9 (113%) (108%) +0.4 +0.2 (129%) (113%) +1.6 +0.6 (114%) (106%) +4.8 +2.4 (111%) (106%)42.2 47.0Total +2.3 Europe +0.21.5 1.9 Mainland China 10.8 12.4 +0.9 Americas +0.618.7 20.0 Asian & Oceanian Region 11.2 12.6 +0.6 Net Sales YoYFY25 FY26 Influence of Currency- 1Q 1Q exchange rate neutral basis -0.3 -0.4 (88%) (80%) -0.0 (53%) -0.2 -0.4 (91%) (78%) -1.2 Operating Profit YoYFY25 FY26 1.1 -0.1 +0.0Americas -1.2 Asian & Oceanian Region 2.2 1.9 +0.2 Europe 0.1 0.0 +1.3 Total 1.7 1.6 +0.2 Mainland China -1.6 -0.3 +1.3 +0.0 +0.0 -0.1
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Copyright © TOTO LTD. All Rights Reserved. Sales volume of WASHLET 2Q of FY2026 (April to June 2026) YoY: 120% 12 Sales increased due to new sanitary ware products. WASHLET sales decreased due to a pullback following the previous year’s sell-in, but are expected to recover from 2Q onward. Operating profit decreased due to growth investments. ■ Market trends and WASHLET sales YoY Sales distribution ratio Net sales Sanitary Ware 113% 52% WASHLET 99% 38% Faucet Fixtures 105% 8% Sales volume WASHLET 88% Market conditions YoY comparison of the number of existing houses sold (based on delivery time) Jan to Mar 2026 : 99% Despite market stagnation due to uncertainty about the future and changes in purchasing behavior, spray seats demand remains steady. WASHLET sales Sales decreased YoY due to a pullback following sell - in associated with new product launches in the previous year, but demand remained strong. For the first half overall, sales exceeded the previous year’s level across all channels. Growth segmentAmericas Business *Figures that do not include consolidated adjustment and common expense allocations 128 million dollars (104%) 3 million dollars (-5 million dollars) Net Sales (YoY) Operating profits (YoY) Net sales growth of 2Q of FY2026 (April to June 2026) YoY: 101% ■ Growth rate by product 148% 88% 120% 50% 100% 150% 200% 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 24 25 26 0 50 100 150 200 [Sales volume YoY] WASHLET shipment volume (with 1Q of FY2024 set as 100) WASHLET YoY YoY comparison of the number of existing houses sold *Growth temporarily slowed due to inventory adjustments by agencies. Sell-out remained strong, increasing by double digits.
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Copyright © TOTO LTD. All Rights Reserved. 13 2Q (Apr to June) Sales YoY Taiwan region 103% Vietnam 119% Thailand 105% Across Asia YoY Sales distribution ratio Net sales Sanitary Ware 103% 41% WASHLET 127% 29% Faucet Fixtures 120% 27% Sales volume WASHLET 143% ■ Net Sales (YoY in local currency) Asia Business *Figures that do not include consolidated adjustment and common expense allocations Growth segment ■ Sales Distribution Ratio (Y Billion) Taiwan region 1,500 million Taiwan dollars (103%) Vietnam 3,035 billion dong (157%) India 776 million Indian rupees (119%) Thailand 146 million baht (101%) ■ Situation by country and region ■ Growth rate by product (Y Billion) * Fiscal year in India April 2026 to March 2027 Sales volume of WASHLET 2Q of FY2026 (April to June 2026) YoY: 118% Sales increased in the Taiwan region due to expanded WASHLET sales and other factors. Sales increased in Vietnam due to market recovery and the effects of expanding sales of new products. TaiwanRegion60% Vietnam14% India10% Thailand6% Others10% Asia Business 12.6 billion yen Taiwan Region WASHLET sales remained strong Vietnam Growth continued due to market recovery and the effects of sales initiatives India Sales increased due to the effects of expanding sales channels and other initiatives Thailand Sales remained at approximately the same level as the previous year due to market conditions
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Copyright © TOTO LTD. All Rights Reserved. 14 Sales increased and profitability was maintained due to the effect of expanded WASHLET sales to priority plumbers. Europe Business Growth segment *Figures that do not include consolidated adjustment and common expense allocations Net sales growth of 2Q of FY2026 (April to June 2026) YoY: 114% ■ WASHLET: Growth in sales volume (index) ■ Initiatives to establish market position in the European market Sales volume of WASHLET 2Q of FY2026 (April to June 2026) YoY: 118% Net Sales (YoY) Operating profits (YoY) 10 million euros (113%) 1 million euros (+0.0 million euros) 100 123 FY25 1Q FY26 1Q The London showroom reopened in May 2026 after renovation. By expanding displays of actual products and enhancing the technical exhibits, we will strengthen TOTO brand’s visibility and drive product adoption. Opening event Main exhibition space Image credits: @ella_ling_photography
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Copyright © TOTO LTD. All Rights Reserved. 15 Net sales growth of 2Q of FY2026 (April to June 2026) YoY: 94% 547 million yuan (106%) 22 million yuan (+82 million yuan) YoY Sales distribution ratio Net sales Sanitary Ware 106% 45% WASHLET 110% 30% Faucet Fixtures 99% 20% Sales volume WASHLET 100% ■ Production Company liquidation procedures underway ■ Growth rate by product ■ Structural Reform (announced on April, 2025) ■ Sale ■ Products Mainland China Business *Figures that do not include consolidated adjustment and common expense allocations Base segment Net Sales (YoY) Operating profits (YoY) Sales volume of WASHLET 2Q of FY2026 (April to June 2026) YoY: 104% Sales increased due to strong retail sales. Profit increased significantly and the business returned to profitability due to the introduction of strategic products and reductions in fixed costs that resulted from business restructuring. *Although total sales fell below the previous year due to lower project sales, retail sales rose to more than 120% of the previous year’s level. [Reducing fixed costs through factory closures and workforce optimization] Progressing as planned Implementing remodeling proposals in collaboration with contractors in key metropolitan areas New products for the mid-to-high-end and mid-range markets (WASHLET integrated toilets) are selling well, contributing to retail performance, including a shift up to the mid-to-high-end and high-end segments. Progressing as planned [Strong retail sales offset lower project sales]
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Copyright © TOTO LTD. All Rights Reserved. 16 16.0 billion yen (106%) 6.5 billion yen (+0.6 billion yen) New Business Domains: Advanced Ceramic Business Growth segment Net Sales (YoY) Operating profits (YoY) ｜ Electrostatic chucks ｜ AD Components ■ Status of major products and applications Despite shipment timing shifts due to supply chain impacts, sales and profits increased due to foreign exchange effects. Although 1Q fell short of the plan, the impact is temporary and we expect to make up the shortfall in 2Q. Sales increased due to robust AI-related demand and improved productivity. In anticipation of future demand growth, we are proceeding as planned with investments to expand production capacity and develop next-generation products, aiming for long-term business growth while further enhancing TOTO’s strengths. (See pages 17 and 22.) Advanced semiconductor market conditions remain favorable, supported by growing demand for data centers. Rapid demand growth has caused delays in equipment deliveries and component supplies throughout the supply chain, which also affects TOTO, with deliveries shifting to 2Q and beyond.
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Copyright © TOTO LTD. All Rights Reserved. In developing next-generation products, we will strengthen our ability to respond quickly to customer requirements. By leveraging synergies across the TOTO Group, we will continue to support the manufacture of advanced semiconductors. 17 Advanced Ceramics Business — Construction of a New R&D Building at the Chigasaki Plant Establishing a next-generation R&D hub to drive growth in the Advanced Ceramics Business Purpose: To strengthen the R&D system for electrostatic chucks and AD components Plan: Construction scheduled to begin in December 2026 and to be completed in April 2028. Enhanced functionality beyond our current products Faster development Accelerating R&D for next-generation products Shortening development lead times by expanding prototype lines ＊ April 2026 news release announcement Growth investment in the Advanced Ceramics Business: Approx. ¥30 billion Further production capacity expansion: Large - scale investment planned R&D Production 2026 2027 2028 2029 2030 Firing building News release ＊ R&D building ＊
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Copyright © TOTO LTD. All Rights Reserved. Although the Americas Housing Products Business is affected by inventory adjustments and the Advanced Ceramics Business by semiconductor supply chain disruptions, these are temporary impacts, and full-year results are expected to meet the initial plan. 18 Outlook for the current fiscal year -Unchanged from the initial plan FY2026 plan（Announced April 30） FY2025 FY2026 YoY Net Sales 737.4 785.0 +47.6 (106%) Operating Profit [Operating Margin] 53.8 [7.3%] 60.0 [7.6%] +6.2 (112%) [+0.4pt] Recurring Profit 60.7 58.5 -2.2 (96%) Profit attributable to owners of parent company 40.3 46.0 +5.7 (114%) ROA 6.6% 7.2% +0.6pt ROE 7.7% 8.5% +0.8pt ROIC* 6.9% 8.6% +1.6pt *TOTO version ROIC Operating profits after tax (Operating capital + Fixed assets) Unit: Y billion
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Copyright © TOTO LTD. All Rights Reserved. 19 2. Topic 19
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Copyright © TOTO LTD. All Rights Reserved. 20 External Evaluation We will continue to promote sustainability management with the aim of achieving clean, comfortable, and healthy lifestyles as well as contributing to society and the global environment. ■Selected for the Dow Jones Best-in-Class World Index for the 14th time ■ Selected as a constituent of the MSCI Japan ESG Select Leaders Index for 2 consecutive years Selected as a constituent of the MSCI Japan Empowering Women Select Index (WIN) for 9 consecutive years ■Selected as a Constituent of the FTSE4Good Index Series for the 11th consecutive year Continued Selection as a Constituent of the FTSE JPX Blossom Japan Index and FTSE JPX Blossom Japan Sector Relative Index ■ S&P/JPX Carbon Efficient Index Morningstar Japan ex-REIT Gender Diversity Tilt Index ■ Named in the CDP Supplier Engagement Assessment Leaderboard, which is the highest-ranking leaderboard, for 4 consecutive years Selected as a stock in all ESG investment indices adopted by the Government Pension Investment Fund (GPIF)
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Copyright © TOTO LTD. All Rights Reserved. 21 3. Reference 21
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Copyright © TOTO LTD. All Rights Reserved. 22 Reference: Advanced Ceramics Business Growth Segment We aim for long-term business growth by supporting technological innovation in advanced manufacturing equipment through our proprietary technology and production system. ■TOTO’s Strengths in the Long-Term Outlook For 3D NAND memory For logic semiconductors Technological innovation in etching equipment • Fundamental technological innovation in semiconductor multilayering ⇒ High-power and ultra-low-temperature environments • Thorough low-particle control • Few-nanometer node miniaturization ⇒ Precise wafer temperature control TOTO’s strengths Electrostatic chucks • Exceptionally high material purity ➡ High durability and long service life • Ultra-high-precision surface processing ➡ Precise wafer temperature control • Proprietary bonding and insulation technology ➡ Maintaining performance at ultra-low temperatures AD components Proprietary dense film formation ➡ Industry-leading low- particle performance Electrostatic chucks • High-precision heater control ➡ Uniform temperature control • Exceptionally high purity ➡ High durability and long service life [Production System] Achieving high-yield, highly profitable systems through full-scale transformation to smart factories (Maintained an operating margin of 30% even in FY2023, when sales fell sharply during a demand adjustment phase.) Performance drivers • Continuous enhancement of added value in new- generation products • Volume growth through deliveries for newly installed equipment and expansion of the install base of chambers • Expansion of replacement demand due to increased utilization by device manufacturers • Continuous enhancement of added value in new- generation products • Expansion of deliveries for newly installed equipment TOTO has earned high acclaim and exceptional trust from customers, particularly for our high durability and low-particle performance. We continue to carry out R&D on next-generation products based on these strong relationships of trust.
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This presentation material contains forward-looking statements based on assumptions, estimates and plans as of July 31, 2026. Actual performance may differ materially from these forward-looking statements due to risks and undermined factors arising from changes in the world economy, competition and foreign currency exchange rates.