- Rohm posted its largest-ever annual loss after major SiC-related impairment charges.
- Slower EV adoption and reduced global incentives impacted Rohm’s medium-term outlook.
Rohm announced on May 12 that it recorded a total impairment loss of JPY 193.6 billion for the fiscal year ended March 2026 (FY2025), mainly associated with production facilities connected to its silicon carbide (SiC) business in Japan and overseas operations. The company reported a consolidated net loss of JPY 158.4 billion, significantly lower than its earlier forecast of JPY 10 billion in consolidated net income. The result marks the largest annual loss in the company’s history as it faces growing uncertainty in the global electric vehicle supply chain and semiconductor demand environment.
The company stated that changes in global automotive market conditions played a major role in reassessing the long-term profitability of its SiC investments. According to the revised outlook, medium-term expansion of the electric vehicle market is expected to remain below previous estimates. The slowdown has been influenced by weaker EV purchase incentives in the United States and evolving regulatory discussions in Europe concerning the proposed 2035 phaseout of new internal combustion engine vehicle sales. These developments have affected expected demand growth for next-generation power semiconductor technologies.
Rohm FY2025 Financial Performance Overview
Following a detailed review of its asset portfolio and future earnings expectations, Rohm determined that impairment recognition was necessary for several fixed assets associated with the SiC segment. The company noted that it is continuing efforts to improve profitability through revised investment strategies and additional cost reduction measures. Management indicated that the reassessment was based on lower-than-expected market growth assumptions and ongoing pressure within the EV ecosystem.
Key Financial and Business Figures
| Category | Details |
|---|---|
| Impairment Loss | JPY 193.6 Billion |
| Net Result FY2025 | JPY 158.4 Billion Loss |
| Previous Forecast | JPY 10 Billion Net Income |
| Main Business Impacted | Silicon Carbide (SiC) |
Silicon carbide devices are considered critical for electric vehicles because they improve energy efficiency and support faster power switching in traction inverters and charging systems. However, slower EV sales momentum in major markets has affected investment returns across the semiconductor value chain. Rohm’s latest financial revision highlights broader concerns among automotive semiconductor suppliers regarding the pace of EV adoption and the timing of future demand recovery.
Frequently Asked Questions
Why did Rohm record a major loss in FY2025?
Rohm recorded a historic loss primarily due to impairment charges linked to its silicon carbide production facilities. The company reassessed the recoverability of its fixed assets after revising medium-term expectations for electric vehicle market growth. Slower EV adoption, reduced incentives in the United States, and changing regulatory discussions in Europe contributed to weaker business projections. These factors led Rohm to recognize JPY 193.6 billion in impairment losses and report its largest-ever annual net loss.
How does the EV market slowdown affect Rohm’s SiC business?
Silicon carbide semiconductors are heavily used in electric vehicles for efficient power management and fast-switching applications. When EV sales growth slows, demand expectations for SiC components also decline. Rohm stated that reduced EV incentives and uncertainty around future combustion-engine regulations negatively impacted projected market expansion. As a result, the company revised investment plans and reviewed profitability assumptions for its SiC operations, leading to significant impairment charges and financial losses during FY2025.
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