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© ROHM Co., Ltd. Financial Results for 3Q FY2025 As of February 4, 2026 Katsumi Azuma President, Chief Executive Officer ROHM Co., Ltd.
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P. 2© ROHM Co., Ltd. FY2025 Q3 Results YoY QoQ FY2025 Revised Plan as of Feb. 2026 YoY VS. Revised Plan as of Nov. 2025 Net sales 125.2 - +11.2% -2.1% 480.0 - +7.0% +4.3% Operating profit 2.0 1.6% - -72.5% 6.0 1.2% - +20.0% Net profit 4.5 3.6% - -38.7% 10.0 2.1% - +11.1% Average exchange rate (¥/US$) (¥154.04) (¥150.17) (Billion ¥) Financial Highlights Benefiting from favorable exchange rates, sales have been revised upwards by ¥20 billion. However, the increase in operating profit is expected to be limited due to quality assurance-related costs for SiC devices and inventory write-downs. The projected foreign exchange rate is ¥153 per USD. Excluding foreign exchange impact, work in process and raw materials were reduced by approx. ¥10 billion in 3Q. Adjustments will continue to be made. Price increase negotiations due to the surge of gold prices have secured approval from 70% of customers at present and are progressing as planned. At the same time, replacement with copper wire is being implemented. Regarding the reorganization of manufacturing sites, it has been decided that a part of the manufacturing lines at the Kyoto Head Office will be closed. Discussions are ongoing. 3Q Results Full-Year Plan Future Inventory Policy Progress of Structural Reform Partnership with Toshiba Financial Highlights YoY: Shifted from a loss to a profit due to recovery in sales and positive effects from fixed cost reductions. QoQ: Sales declined due to seasonal trends in consumer. Variable costs increased due to the impact of rising gold prices and quality assurance-related costs for SiC devices. As a result, the profit margin significantly declined.
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P. 3© ROHM Co., Ltd. Japan 50.2% China 15.2% Other Asia 10.7% Americas 11.2% Europe 12.7% By Customer Nationality Automotive 51.9% Industrial 12.2% Consumer 20.4% Communication 3.6% C&S 11.9% By Market （Billion ¥） [FY2025 3Q] Sales Composition Market YoY QoQ Automotive +13.9% +8.1% Industrial +8.9% -5.4% Consumer +11.5% -18.1% Communi cation -8.2% -16.6% C&S +9.2% -1.2% Segment YoY QoQ ICs +6.7% -7.2% Discrete semiconductor devices +19.2% +5.6% Modules -1.9% -14.9% Others +5.6% -0.8% Customer Nationality YoY QoQ Japan +5.8% -7.7% China +8.5% +0.6% Other Asia +20.4% +8.3% Americas +12.5% -4.5% Europe +32.3% +14.9% FY2025 3Q Financial Results ICs 44.0% Discrete semiconductor devices 44.6% Modules 6.2% Others 5.2% By Segment 65.1 15.2 25.6 14.9 4.5 55.1 55.8 6.5 7.7 63.0 19.0 13.4 14.0 16.0 FY2025 3Q YoY +11.2% QoQ -2.1%¥ 125.2 billion
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P. 4© ROHM Co., Ltd. 2.0 -10.1 +12.6 -9.3 +8.8 Organic decrease Organic increase Forex impact Material costs and inventory impact -9.3 Material costs -12.8 Inventory impact +3.5 Sales increase +12.6 Forex impact +1.3 Organic increase +11.3 FY2025 3Q Financial Results FY2024 3Q Results FY2025 3Q Results （¥151.32/US$） （¥154.04/US$） ［FY2025 3Q］ Changes in Operating Profit (YoY) ¥12.1b profit increase Fixed costs decrease +8.8 Forex impact -1.3 Organic decrease +10.1 Forex impact Manufacturing costs Labor costs -1.5 Depreciation +5.5 Expenses +1.6 SG&A R&D costs +3.1 Others +0.1 Breakdown by market Automotive +7.9 Communication -0.4 Industrial +1.2 C&S +1.3 Consumer +2.6 ◼ Depreciation decreased significantly, partly due to change in depreciation method. ◼ R&D costs related to the SiC business peaked. ◼ Quantity of materials used increased due to higher sales volumes. ◼ Variable costs increased due to surge in gold prices. ◼ For SiC devices, temporary quality assurance - related costs were recorded due to expansion of adoption for automotive inverters. ◼ The automotive market remained strong due to recovery in production volumes. ◼ Sales of SiC devices for inverters grew, mainly for Europe. (Billion ¥)
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P. 5© ROHM Co., Ltd. 2.0 7.4 -2.8 -3.6 +1.0 Organic decrease Organic decrease Material costs and inventory impact -3.6 Material costs -7.8 Inventory impact +4.2 Sales decrease -2.8 Forex impact +3.1 Organic decrease -5.9 FY2025 3Q Financial Results FY2025 2Q Results FY2025 3Q Results （¥147.50/US$） （¥154.04/US$） ［FY2025 3Q］ Changes in Operating Profit (QoQ) Fixed costs decrease +1.0 Forex impact -1.3 Organic decrease +2.3 ◼ Variable costs increased due to surge of gold prices. ◼ For SiC devices, temporary quality assurance - related costs were recorded due to expansion of adoption for automotive inverters. ◼ Sales of SiC devices for inverters grew, mainly for Europe. ◼ Sales for amusement declined due to seasonal trends. ¥5.4b profit decrease Forex impact Forex impact (Billion ¥) Breakdown by market Automotive +4.9 Communication -0.9 Industrial -0.9 C&S -0.2 Consumer -5.7 Manufacturing costs Labor costs -0.5 Depreciation -0.4 Expenses +1.5 SG&A R&D costs +0.7 Others -0.4
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P. 6© ROHM Co., Ltd. 16.8 15.2 15.7 16.1 14.3 13.2 12.4 17.3 19.1 16.0 15.1 13.7 13.8 14.9 14.1 12.4 12.1 11.8 10.6 10.9 12.0 48.3 46.8 43.9 43.0 38.6 38.0 39.4 1.7 1.6 1.4 1.4 1.4 1.2 1.2 0.0 25.0 50.0 75.0 100.0 125.0 1Q 2Q 3Q 4Q 1Q 2Q 3Q (Billion ¥) ◼ Raw materials and supplies Continue adjustment of excess inventory caused by LTA. FY25FY24 Turnover months (Inventories / Cost of sales) 40.6 43.2 46.8 41.4 42.8 44.6 43.6 41.7 35.9 37.6 36.5 36.4 35.5 34.1 13.2 11.4 11.8 10.5 9.7 10.1 9.7 95.7 90.6 96.3 88.5 89.0 90.3 87.6 3.2 3.2 3.0 3.0 2.9 2.8 2.7 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 25.0 50.0 75.0 100.0 125.0 1Q 2Q 3Q 4Q 1Q 2Q 3Q (Billion ¥) 37.3 43.0 44.7 35.9 37.5 35.4 33.5 28.4 26.7 26.1 22.3 22.4 21.5 21.2 16.1 14.9 15.0 13.6 14.1 14.5 14.8 81.9 84.7 85.9 71.9 74.1 71.5 69.6 2.7 2.9 2.7 2.6 2.4 2.3 2.2 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 25.0 50.0 75.0 100.0 125.0 1Q 2Q 3Q 4Q 1Q 2Q 3Q (Billion ¥) Inventory Others ICs Power devices ◼ Work in process Proceed further with adjustments, focusing on power devices. ◼ Merchandise and finished goods Inventory adjustments completed. Current levels to be maintained. Inventory FY25FY24 FY25FY24
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P. 7© ROHM Co., Ltd. Automotive 48.9% Industrial 12.5% Consumer 22.7% Communication 3.8% C&S 12.2% By Market （Billion ¥） [FY2025] Sales Composition Market YoY vs. Revised Plan as of Nov. 2025 Automotive +4.9% +4.7% Industrial +4.5% +2.6% Consumer +16.6% +2.3% Communi cation -7.4% +8.8% C&S +7.4% +7.6% Segment YoY vs. Revised Plan as of Nov. 2025 ICs +7.9% +3.4% Discrete semiconductor devices +9.1% +4.8% Modules -5.1% +6.7% Others +0.1% +6.8% Customer Nationality YoY vs. Revised Plan as of Nov. 2025 Japan +7.5% +3.6% China +5.4% +4.4% Other Asia +10.9% +10.3% Americas +2.4% +7.6% Europe +8.5% -0.8% FY2025 Revised Plan as of Feb.2026 ICs 45.8% Discrete semiconductor devices 42.5% Modules 6.4% Others 5.2% By Segment 234.6 Japan 52.5% China 14.7% Other Asia 10.5% Americas 11.5% Europe 10.8% By Customer Nationality 59.9 108.8 58.5 18.2 220.0 204.1 25.0 30.9 252.1 70.6 50.2 55.3 51.8 FY2025 YoY +7.0% vs. Revised Plan as of Nov. 2025 +4.3%¥ 480.0 billion
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P. 8© ROHM Co., Ltd. 6.0 -40.0 +31.6 -18.0 +32.4 Organic decrease Organic increase Material costs and inventory impact -18.0 Material costs -29.2 Inventory impact +11.2 Sales increase +31.6 Forex impact -4.4 Organic increase +36.0 FY2025 Revised Plan as of Feb. 2026 FY2024 Results FY2025 Revised Plan （¥152.48/US$） （¥150.17/US$） ［FY2025］ Changes in Operating Profit（YoY） ¥46.0b profit increase Fixed costs decrease +32.4 Forex impact -0.2 Organic decrease +32.6 Forex impact Forex impact (Billion ¥) Breakdown by market Automotive +10.9 Communication -1.5 Industrial +2.6 C&S +4.0 Consumer +15.5 Manufacturing costs Labor costs -1.8 Depreciation +20.4 Expenses -0.4 SG&A R&D costs +13.0 Others +1.2 ◼ The automotive market remained strong due to recovery in production volumes. ◼ Sales of SiC devices for inverters growing, mainly for Europe. ◼ Sales for amusement increased significantly. ◼ Depreciation is decreasing significantly, partly due to change in depreciation method. ◼ R&D costs related to the SiC business has peaked. ◼ The quantity of materials used are increasing due to higher sales volumes. ◼ Variable costs are increasing due to surge in gold prices. ◼ For SiC devices, temporary quality assurance - related costs will continue to be recorded due to expansion of adoption for automotive inverters. ◼ Inventory write - downs due to declining profitability recorded in FY24 will fall off.
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P. 9© ROHM Co., Ltd. 6.05.0 +20.0 -19.4 +0.4 Organic increase Forex impact FY2025 Revised Plan as of Feb. 2026 FY2025 Revised Plan （As of Nov.） FY2025 Revised Plan （As of Feb.） (¥143.54/US$) (¥150.17/US$) ［FY2025］ Changes in Operating Profit（VS. Revised Plan as of Nov. 2025） Forex impact ◼ In the automotive market, projected risks did not occur, and production volumes are to remain firm. ◼ Orders of SiC devices for inverters from European customers exceeded expectations, but external sales business for SiC substrates underwent significant adjustment compared to plan. Organic decrease Upward revision by ¥1.0b (Billion ¥) Sales increase +20.0 Forex impact +12.6 Organic increase +7.4 Breakdown by market Automotive +7.9 Communication -0.4 Industrial +1.2 C&S +1.3 Consumer +2.6 Material costs and inventory impact -19.4 Material costs -15.9 Inventory impact -3.5 Fixed costs decrease +0.4 Forex impact -3.1 Organic decrease +3.5 Manufacturing costs Labor costs -2.2 Depreciation 0 Expenses +0.6 SG&A R&D costs +1.1 Others +0.9 ◼ The quantity of materials used are increasing due to higher sales volumes. ◼ For SiC devices, temporary quality assurance - related costs will continue to be recorded due to expansion of adoption for automotive inverters. ◼ Additional write - downs to be recorded for high - risk inventory.
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P. 10© ROHM Co., Ltd. [Note] 1. This material is originally written in Japanese. In the event of any differences or discrepancies in the contents including contexts, figures, and others between Japanese and English version of the material, Japanese original version shall govern. 2. The forecasts for the fiscal year ending March 2026 are based upon the information which the company considers reasonable at this time. Actual results may differ considerably by the changes of environment and so forth. [Contact] ROHM Co., LTD, Public & Investor Relations Division, Investor Relations Department 21, Saiin Mizosaki-cho, Ukyo-ku Kyoto 615-8585 Japan E-mail：ir@rohm.co.jp Notes and Inquiries
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© ROHM Co., Ltd.
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P. 12© ROHM Co., Ltd. (Billion ¥) ◼ Infotainment -0.5 ◼ Body +1.9 ◼ Power train -0.4 ◼ ADAS -0.0 ◼ xEV +6.0 ◼ Others +1.0 Appendix： FY2025 3Q Results ◼ FA +0.5 ◼ Energy +0.0 ◼ Home building -0.6 ◼ Others +1.3 ◼ AV -0.1 ◼ Home appliance -0.7 ◼ Others +3.5 ◼ Smart phone & mobile -0.7 ◼ Base station & infrastructure +0.3 ◼ Wired communication +0.1 ◼ PC & server +1.3 ◼ POS +0.2 ◼ OA +0.3 Computers & Storage Communi cationConsumer3Q Net Sales IndustrialAutomotive 57.1 65.1 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY24 3Q FY25 3Q 14.0 15.2 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY24 3Q FY25 3Q 23.0 25.6 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY24 3Q FY25 3Q 4.9 4.5 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY24 3Q FY25 3Q 13.6 14.9 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY24 3Q FY25 3Q 112.6 125.2 0.0 25.0 50.0 75.0 100.0 125.0 150.0 FY24 3Q FY25 3Q [FY2025 3Q by Market] Changes in Sales (YoY) +11.2% +13.9% +8.9% +11.5% -8.2% +9.2%
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P. 13© ROHM Co., Ltd. [FY2025 3Q by Customer Nationality] Changes in Sales (YoY) Appendix： FY2025 3Q Results 12.1 16.0 0.0 10.0 20.0 30.0 FY24 3Q FY25 3Q *Calculated sales by customer nationality (Billion ¥) Automotive +4.0 Communication +0.0 Industrial -0.1 C&S +0.0 Consumer -0.1 Europe +32.3% Other Asia +20.4% FY2025 3Q Results ¥ 112.6 billion FY2024 3Q Results 3Q Net Sales ¥ 125.2 billion +11.2% China +8.5% Japan +5.8% 11.1 13.4 0.0 10.0 20.0 30.0 FY24 3Q FY25 3Q 17.5 19.0 0.0 10.0 20.0 30.0 FY24 3Q FY25 3Q Automotive +1.8 Communication -0.1 Industrial -0.2 C&S +0.3 Consumer -0.4 Automotive +0.4 Industrial +0.6 Consumer -0.0 Communication +0.0 C&S +1.2 Americas +12.5% 12.5 14.0 0.0 10.0 20.0 30.0 FY24 3Q FY25 3Q Automotive +0.6 Communication -0.2 Industrial +0.6 C&S +0.1 Consumer +0.5 Automotive +1.1 Communication -0.2 Industrial +0.3 C&S -0.4 Consumer +2.6 59.5 63.0 0.0 25.0 50.0 75.0 FY24 3Q FY25 3Q 47.2% FY2024 3Q Results 49.8% FY2025 3Q Results Sales ratio outside of Japan
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P. 14© ROHM Co., Ltd. [FY2025 3Q] Results by Segment (YoY) (Billion ¥) FY2025 3Q Results FY2024 3Q Results Difference in Amount Difference in % ICs Net sales 55.1 51.6 +3.5 +6.7% Segment profit 6.9 -1.5 +8.4 - (Ratio) ( 12.7%) ( -3.0%) - - Discretes Net sales 55.8 46.8 +9.0 +19.2% Segment profit -6.6 -10.0 +3.4 - (Ratio) ( -12.0%) ( -21.5%) - - Modules Net sales 7.7 7.9 -0.2 -1.9% Segment profit 0.5 0.5 +0.0 +3.3% (Ratio) ( 7.5%) ( 7.1%) - - Others Net sales 6.5 6.1 +0.4 +5.6% Segment profit 1.2 0.3 +0.9 +252.2% (Ratio) ( 19.6%) ( 5.9%) - - Appendix： FY2025 3Q Results
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P. 15© ROHM Co., Ltd. (Billion ¥) ◼ Infotainment +0.1 ◼ Body +0.9 ◼ Power train +0.4 ◼ ADAS +0.0 ◼ xEV +3.4 ◼ Others +0.1 Appendix： FY2025 3Q Results ◼ FA -0.3 ◼ Energy -0.5 ◼ Home building +0.1 ◼ Others -0.1 ◼ AV -0.2 ◼ Home appliance -0.7 ◼ Others -4.7 ◼ Smart phone & mobile -1.0 ◼ Base station & infrastructure +0.1 ◼ Wired communication +0.0 ◼ PC & server +0.4 ◼ POS -0.2 ◼ OA -0.4 Computers & Storage Communi cationConsumer3Q Net Sales IndustrialAutomotive 60.2 65.1 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY25 2Q FY25 3Q 16.1 15.2 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY25 2Q FY25 3Q 31.3 25.6 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY25 2Q FY25 3Q 5.4 4.5 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY25 2Q FY25 3Q 15.1 14.9 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 FY25 2Q FY25 3Q 128.0 125.2 0.0 25.0 50.0 75.0 100.0 125.0 150.0 FY25 2Q FY25 3Q [FY2025 3Q by Market] Changes in Sales (QoQ) -2.1% +8.1% -5.4% -18.1% -16.6% -1.2%
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P. 16© ROHM Co., Ltd. [FY2025 3Q by Customer Nationality] Changes in Sales (QoQ) Appendix： FY2025 3Q Results 13.9 16.0 0.0 10.0 20.0 30.0 FY25 2Q FY25 3Q *Calculated sales by customer nationality (Billion ¥) Automotive +2.6 Communication +0.0 Industrial -0.3 C&S +0.2 Consumer -0.0 Europe +14.9% Other Asia +8.3% FY2025 3Q Results ¥ 128.0 billion FY2025 2Q Results 3Q Net Sales ¥ 125.2 billion -2.1% China +0.6% Japan -7.7% 12.3 13.4 0.0 10.0 20.0 30.0 FY25 2Q FY25 3Q 18.9 19.0 0.0 10.0 20.0 30.0 FY25 2Q FY25 3Q Automotive +1.6 Communication -0.1 Industrial -0.4 C&S -0.1 Consumer -0.8 Automotive +0.2 Industrial +0.1 Consumer +0.1 Communication +0.0 C&S +0.6 Americas -4.5% 14.7 14.0 0.0 10.0 20.0 30.0 FY25 2Q FY25 3Q Automotive +0.2 Communication -0.8 Industrial -0.1 C&S -0.2 Consumer +0.3 Automotive +0.3 Communication +0.0 Industrial -0.1 C&S -0.3 Consumer -5.3 68.2 63.0 0.0 25.0 50.0 75.0 FY25 2Q FY25 3Q 46.7% FY2025 2Q Results 49.8% FY2025 3Q Results Sales ratio outside of Japan
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P. 17© ROHM Co., Ltd. [FY2025 3Q] Results by Segment (QoQ) (Billion ¥) FY2025 3Q Results FY2025 2Q Results Difference in Amount Difference in % ICs Net sales 55.1 59.4 -4.3 -7.2% Segment profit 6.9 8.6 -1.7 -19.1% (Ratio) ( 12.7%) ( 14.5%) - - Discretes Net sales 55.8 52.9 +2.9 +5.6% Segment profit -6.6 -3.5 -3.1 - (Ratio) ( -12.0%) ( -6.7%) - - Modules Net sales 7.7 9.1 -1.4 -14.9% Segment profit 0.5 1.5 -1.0 -63.0% (Ratio) ( 7.5%) ( 17.2%) - - Others Net sales 6.5 6.5 -0.0 -0.9% Segment profit 1.2 1.0 +0.2 +22.7% (Ratio) ( 19.6%) ( 15.8%) - - Appendix： FY2025 3Q Results
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P. 18© ROHM Co., Ltd. ◼ Infotainment -3.6 ◼ Body +4.1 ◼ Power train -1.7 ◼ ADAS -0.1 ◼ xEV +10.2 ◼ Others +2.1 Appendix： FY2025 Revised Plan as of Feb.2026 ◼ FA +1.5 ◼ Energy +0.1 ◼ Home building -2.1 ◼ Others +3.0 ◼ AV -0.5 ◼ Home appliance -1.8 ◼ Others +17.8 ◼ Smart phone & mobile -2.1 ◼ Base station & infrastructure +0.5 ◼ Wired communication +0.1 ◼ PC & server +3.4 ◼ POS -0.1 ◼ OA +0.8 Full Year Net Sales 223.8 234.6 0.0 50.0 100.0 150.0 200.0 250.0 FY24 FY25 57.3 59.9 0.0 50.0 100.0 150.0 200.0 250.0 FY24 FY25 93.3 108.8 0.0 50.0 100.0 150.0 200.0 250.0 FY24 FY25 19.7 18.2 0.0 50.0 100.0 150.0 200.0 250.0 FY24 FY25 54.4 58.5 0.0 50.0 100.0 150.0 200.0 250.0 FY24 FY25 448.4 480.0 0.0 100.0 200.0 300.0 400.0 500.0 FY24 FY25 [FY2025 by Market] Changes in Sales (YoY) +7.0% +4.9% +4.5% +16.6% -7.4% +7.4% (Billion ¥) Computers & Storage Communi cationConsumerIndustrialAutomotive
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P. 19© ROHM Co., Ltd. [FY2025 by Customer Nationality] Changes in Sales (YoY) Appendix： FY2025 Revised Plan as of Feb.2026 47.7 51.8 0.0 50.0 100.0 FY24 FY25 *Calculated sales by customer nationality (Billion ¥) Automotive +3.9 Communication +0.0 Industrial -0.1 C&S +0.6 Consumer -0.3 Europe +8.5% Other Asia +10.9% China +5.4% Japan +7.5% 45.3 50.2 0.0 50.0 100.0 FY24 FY25 67.0 70.6 0.0 50.0 100.0 FY24 FY25 Automotive +4.2 Communication +0.5 Industrial -1.0 C&S +0.0 Consumer -0.2 Automotive +0.2 Industrial +1.6 Consumer -0.5 Communication -0.0 C&S +3.7 Americas +2.4% 54.0 55.3 0.0 50.0 100.0 FY24 FY25 Automotive +1.0 Communication -1.2 Industrial +1.9 C&S -0.4 Consumer -0.0 Automotive +1.5 Communication -0.7 Industrial +0.2 C&S +0.1 Consumer +16.5 234.5 252.1 0.0 50.0 100.0 150.0 200.0 250.0 300.0 FY24 FY25 FY2025 Plan ¥ 448.4 billion FY2024 Results Full Year Net Sales ¥ 480.0 billion +7.0% 47.7% FY2024 Results 47.5% FY2025 Plan Sales ratio outside of Japan