Slide 1: Presentation of Consolidated Financial Results for FY2025
Presentation of Consolidated Financial Results for FY2025 (Fiscal Year Ended March 31, 2026) May 13, 2026 Securities Code: 4461 (Tokyo Stock Exchange (TSE) Prime Market) 証券コード：4461（東証プライム） 第一工業製薬株式会社 DKS Co. Ltd. All Rights Reserved by DKS Co. Ltd.
Slide 2: Today's Agenda
Today’s Agenda 1. Consolidated Financial Results for FY2025 (Fiscal Year Ended March 31, 2026) P.3 2. Consolidated Financial Results Forecasts for FY2026 (Fiscal Year Ending March 31, 2027) P.12 3. Topics P.20 All Rights Reserved by DKS Co. Ltd. 2
Slide 3: 1. Consolidated Financial Results for FY2025
1. Consolidated Financial Results for FY2025 (Fiscal Year Ended March 31, 2026) All Rights Reserved by DKS Co. Ltd. 3
Slide 4: Overview of Financial Results (YoY)
連結 Consolidated Overview of Financial Results (YoY) （単位：百万円） （Millions of yen) YoY Change 前期比増減 25/3月期 FY2024 26/3月期 FY2025 金額 Amount 増減率 % 売上高 Net sales 73,255 82,886 9,630 13.1% 営業利益 Operating income 5,351 10,107 4,756 88.9% 経常利益 Ordinary income 5,737 10,372 4,635 80.8% 親会社株主に帰属する Profit attributa
Slide 5: Trends in Net Sales and Operating Income by Segment
Trends in Net Sales and Operating Income by 連結 Consolidated Segment Net sales Operating income ( )： Percentage (Millions of yen) 13.1% 82,886 16.1% 73,255 10,107 15,182 (18%) 162 (2%) 599 63,118 88.9% (6%) 15,743 (21%) 13,892 (17%) 15,407 (24%) 3,142 (31%) 13,747 (19%) 5,351 12,941 (21%) 23,304 (28%
Slide 6: Analysis of the Increase or Decrease in Operating Income for FY2025
Analysis of the Increase or Decrease in Operating Income for FY2025 * Increase in sales * Increase in sales * Increase in operating * Increase in volume of low- volumes of highly expenses on the back operating expenses dielectric resins profitable products, of higher plant owing to such （Millions of
Slide 7: Segment Results: Electronics & IT
セグメント全体 Entire segment 連結 Consolidated Segment Results: Electronics & IT 売上高 Net sales Operating This business provides high-performance materials that enhance 営業利益 income the value of IT and electronic devices Net sales Operating income (Millions of yen) (Millions of yen) 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q 40
Slide 8: Segment Results: Environment & Energy
セグメント全体 Entire segment 連結 Consolidated Segment Results: Environment & Energy 売上高 Net sales Operating This business provides products that contribute to reducing 営業利益 income environmental impact and supporting the energy industry Net sales Operating income (Millions of yen) 1Q 2Q 3Q 4Q (Millions of y
Slide 9: Segment Results: Life & Wellness
セグメント全体 Entire segment 連結 Consolidated Segment Results: Life & Wellness 売上高 Net sales Operating This business provides technologies and functional materials 営業利益 income that support the development of a healthy and comfortable society Net sales Operating income (Millions of yen) 1Q 2Q 3Q 4Q (Million
Slide 10: Segment Results: Core Materials
セグメント全体 Entire segment 連結 Consolidated Segment Results: Core Materials 売上高 Net sales Operating This business provides materials that improve functionality and 営業利益 income convenience across a wide range of industries Net sales Operating income (Millions of yen) (Millions of yen) 1Q 2Q 3Q 4Q 1Q 2Q 3Q
Slide 11: Comparative Overview of Consolidated Balance Sheets
連結 Consolidated Comparative Overview of Consolidated Balance Sheets （単位：百万円） (Millions of yen) 2025年 March 31, 2026年 March 31, Increase/ 2025年 March 31, 2026年 March 31, Increase/ 増減額 増減額 3月末 2025 3月末 2026 Decrease 3月末 2025 3月末 2026 Decrease 流動資産assets Current 57,247 69,382 Current liabilities 12,134
Slide 12: Overview of Consolidated Statements of Cash Flows
連結 Consolidated Overview of Consolidated Statements of Cash Flows （単位：百万円） (Millions of yen) 25/3月期 2025/3 26/3月期 2026/3 Increase / Full FY Full FY 増減額 Decrease 通期 通期 営業活動によるキャッシュ・フロー Cash flows from operating activities 7,528 9,962 2,433 投資活動によるキャッシュ・フロー Cash flows from investing activities △-2,138
Slide 13: 2. Consolidated Financial Results Forecasts for FY2026
2. Consolidated Financial Results Forecasts for FY2026 (Fiscal Year Ending March 31, 2027) All Rights Reserved by DKS Co. Ltd. 13
Slide 14: Consolidated Financial Results and Forecasts
連結 Consolidated Consolidated Financial Results and Forecasts (Millions of yen) （単位：百万円） [Net sales] 【売上高】 【利益】 [Profit] 100,000 15,000 82,886 84,000 80,000 11,000 12,000 73,255 10,372 65,081 63,118 11,000 60,000 9,000 10,107 5,737 40,000 6,000 6,700 2,077 6,169 5,351 2,060 20,000 1,200 3,000 1,186 2
Slide 15: Prevailing Environment (Market Conditions)
連結 Consolidated Prevailing Environment (Market Conditions) Segments Applications Conditions FY2025 Information and • Continued strong demand for high-end servers communication Electronics & IT • Despite firm demand, device sales volume projected to decline due to Displays soaring memory prices Lithi
Slide 16: [Reference] Net Sales Forecasts by Segment
連結 Consolidated [Reference] Net Sales Forecasts by Segment セグメント Segments 2026年3月期（実績） FY2025 (Results) 2027年3月期（予想） FY2026 (Forecasts) 前期比増減 YoY Change Compo- 構成比 Compo- 構成比 増減率 (Millions of yen) 単位：百万円 1H 上半期 2H 下半期 Full 通期FY sition 1H 上半期 2H 下半期 通期 Full FY sition 金額 Amount (%) (%) (%) (%) (%) (%)
Slide 17: [Reference] Operating Income Forecasts by Segment
連結 Consolidated [Reference] Operating Income Forecasts by Segment Segments セグメント 2026年3月期（実績） FY2025 (Results) 2027年3月期（予想） FY2026 (Forecasts) 前期比増減 YoY Change Compo- Compo- (Millions of yen) 単位：百万円 構成比 構成比 増減率 上半期 1H 下半期 2H Full 通期FY sition 上半期 1H 2H 下半期 Full 通期FY sition 金額 Amount (%) (%) (%) (%) (
Slide 18: Depreciation
連結 Consolidated Depreciation （百万円） (Millions of yen) 4,000 3,580 3,508 3,459 3,410 3,500 3,216 3,223 3,221 3,000 2,724 2,473 2,555 2,500 2,335 2,087 2,000 1,500 1,000 500 0 2017/3 2018年 2016/3 2017年 2016年 2018/3 2019年 2019/3 2020年 2021/3 2022年 2020/3 2021年 2022/3 2023年 2023/3 2024年 2024/3 2025年 2026
Slide 19: Capital Expenditures
連結 Consolidated Capital Expenditures （百万円） (Millions of yen) 10,000 8,991 8,485 8,000 6,138 5,802 6,000 5,138 4,617 3,786 4,000 3,172 2,467 2,724 1,925 2,147 2,000 0 2016年 2016/3 2017年 2017/3 2018年 2018/3 2019年 2019/3 2020年 2020/3 2021年 2021/3 2022年 2022/3 2023年 2023/3 2024年 2024/3 2025年 2025/3 2026
Slide 20: R&D Costs
連結 Consolidated R&D Costs （百万円） (Millions of yen) 6,000 5,105 5,000 4,326 4,000 3,759 3,236 3,170 2,946 3,000 2,765 2,748 2,821 2,380 2,393 2,307 2,000 1,000 0 2016/3 2017年 2016年 2017/3 2018年 2019/3 2020年 2018/3 2019年 2020/3 2021年 2021/3 2022年 2023/3 2024年 2022/3 2023年 2024/3 2025年 2026/3 2027年 2025
Slide 21: 3. Topics
３. Topics All Rights Reserved by DKS Co. Ltd. 21
Slide 22: Reducing Environmental Impact with Bio-Based Materials
Reducing Environmental Impact Topics with Bio-Based Materials Developed a heat-resistant trehalose-derived resin additive Developed a new trehalose-derived material capable of withstanding resin molding temperatures of up to 300°C. By using bio-based materials, the additive enhances the performance
Slide 23: Sustainability Initiatives
Topics Sustainability Initiatives Switched Ohgata Plant electricity entirely to renewable energy, reducing annual CO2 emissions by approximately 4,000 tons The Company achieved a stable supply of renewable energy by combining “off-site PPAs,” sourcing electricity from solar power plants, with renewa
Slide 24: Sustainability Management Initiatives
Topics Sustainability Management Initiatives Promoting sustainability management based on human capital and supporting women’s career development Launched the “Working Group on Women's Career Development” to support career development and clarify key challenges. By strengthening efforts to create an
Slide 25: Disclaimer Regarding Earnings Forecasts and Business Plans
業績予想・事業計画に関する注意事項 Disclaimer Regarding Earnings Forecasts and Business Plans This presentation contains such information as the Company’s current plans and earnings forecasts. These forward-looking statements, including future plans and forecasts are based on currently available information. Actual