Sumco Corporation · TSE:3436

Sumco — Sumco Corp Ord — Q4 2025 Earnings Presentation

14 slides from Sumco's earnings presentation, Feb 10, 2026

  1. Slide 1: Results for Fiscal Year 2025

    Results for Fiscal Year 2025 (Ended December 31, 2025) February 10, 2026 SUMCO Corporation （Code：3436） （LEI：353800SUSRUOM0V6KU92） 4Q-2025 Results SUMCO CORPORATION Feb. 10, 2026 1 Notes Regarding the Forecasts This material is prepared for the purpose of continuous disclosure to general shareholders

  2. Slide 2: Contents

    Contents ■ Summary and Market Environment ■ FY2025 Consolidated Business Result • Summary of Consolidated Business Result • Analysis of Changes in Operating Profit • Consolidated Balance Sheet and Consolidated Cash-Flow ■ 1Q-2026 Consolidated Business Forecast • Consolidated Business Forecast • Anal

  3. Slide 3: 1-1. Summary

    1-1. Summary ■ 4Q-2025 Consolidated Business Result (Billions of Yen) 4Q-2025 4Q-2025 FY2025 Change Forecast Actual Actual Net Sales 100.0 105.2 +5.2 409.6 Operating Profit (10.0) (4.5) +5.5 1.3 Ordinary Profit (13.0) (5.9) +7.1 (3.8) Profit (Note) (16.0) (10.8) +5.2 (11.7) EBITDA margin (%) 24.6% 2

  4. Slide 4: 2-1. 200 mm Wafer Trend

    2-1. 200 mm Wafer Trend （Source： SUMCO’s estimation) 4Q-2025 Results SUMCO CORPORATION Feb. 10, 2026 7 2-2. 300 mm Wafer Trend （Source： SUMCO’s estimation) 4Q-2025 Results SUMCO CORPORATION Feb. 10, 2026 8

  5. Slide 5: 2-3. Market Environment

    2-3. Market Environment ■ 4Q-2025  Volume - The recovery trend for 300 mm wafers continued throughout the year. - Shipments remained slow for 200 mm wafers.  Pricing - Long-term contract prices were honored for both 300mm and 200mm wafers. ■ 1Q-2026 Forecast  Volume - 300 mm wafer outlook remains

  6. Slide 6: 3-2. AI Server Demand Forecasts by Application

    3-2．AI Server Demand Forecasts by Application  Growth in servers for inference use is expected as AI users increase. ( million units ) 6 Training Inference AI TTL 5 4 3 2 1 0 2024 2025 2026 2027 2028 2029 ( Source: SUMCO estimates based on data from multiple research companies ) 4Q-2025 Results SUM

  7. Slide 7: 3-4. Wafer Demand Forecast for Leading-Edge DRAM in AI Servers

    3-4. Wafer Demand Forecast for Leading-Edge DRAM in AI Servers  DRAM capacity per server is growing, with large amounts needed especially for training.  Demand growth for wafers will be driven by significant unit growth in inference application. DRAM capacity per server Wafer demand for DRAM used

  8. Slide 8: 3-6. Leading-Edge Wafer Demand Forecast by AI Server Application

    3-6. Leading-Edge Wafer Demand Forecast by AI Server Application  As AI expands, demand will be driven by inference use in addition to training.  Demand for leading-edge wafers for fast and large-scale processing chips will be expanding. ( k wafers / month ) Demand forecast for leading-edge silico

  9. Slide 9: 4-2. Customers' 300 mm Wafer Inventory (Logic/Memory)

    4-2. Customers’ 300 mm Wafer Inventory (Logic/Memory) （Source： SUMCO’s estimation) 4Q-2025 Results SUMCO CORPORATION Feb. 10, 2026 17 FY2025 Consolidated Business Result Shinichi Kubozoe Representative Director, Executive Vice President, Chief Financial Officer 4Q-2025 Results SUMCO CORPORATION Feb.

  10. Slide 10: 5-1. Summary of Consolidated Business Result

    5-1. Summary of Consolidated Business Result (Billions of Yen) FY2024 FY2025 Actual Change Actual 1Q 2Q 3Q 4Q Total Net sales 396.6 102.4 102.9 99.1 105.2 409.6 +13.0 Operating profit 36.9 5.9 1.5 (1.6) (4.5) 1.3 (35.6) Non-operating income and expenses 0.5 (1.1) (1.6) (1.0) (1.4) (5.1) (5.6) Ordina

  11. Slide 11: 5-3. Balance Sheet and Cash-Flow (Consolidated)

    5-3. Balance Sheet and Cash-Flow (Consolidated) 1. Consolidated Balance Sheet (Billions of Yen) 2. Consolidated Cash-Flow (Billions of Yen) End of End of FY2025 Change Dec-2024 Dec-2025 (12months) Cash and deposits 95.6 75.2 (20.4) Profit before income taxes (3.8) Notes and accounts receivable 92.5

  12. Slide 12: 6-1. 1Q-2026 Consolidated Business Forecast

    6-1. 1Q-2026 Consolidated Business Forecast (Billions of Yen) 1Q-2025 4Q-2025 1Q-2026 Change Change Actual Actual Forecast YoY QoQ Net sales 102.4 105.2 100.0 (2.4) (5.2) Operating profit 5.9 (4.5) (6.0) (11.9) (1.5) Non-operating income and expenses (1.1) (1.4) (4.0) (2.9) (2.6) Ordinary profit 4.8

  13. Slide 13: Reference Materials

    Reference Materials 4Q-2025 Results SUMCO CORPORATION Feb. 10, 2026 25 ■ Quarterly Trend FCST 4Q-2025 Results SUMCO CORPORATION Feb. 10, 2026 26

  14. Slide 14: URL https://www.sumcosi.com/english/

    URL https://www.sumcosi.com/english/ 4Q-2025 Results SUMCO CORPORATION Feb. 10, 2026 27

Sumco Corp Ord — Q4 2025 Earnings Presentation on 6ix