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SK Siltron exits SiC wafers after multimillion-dollar losses
SK Siltron is winding down its US SiC wafer unit after a 2025 net loss of 29.36 billion won and weaker-than-expected demand.
Image: iXBT
SK Siltron is shutting down its silicon carbide (SiC) wafer business in the US after the market fell short of expectations. The South Korean company has begun liquidating SK Siltron CSS, its American subsidiary, and plans to complete the process by the end of 2026. After that, the Michigan facility will stop production entirely.
SK Siltron entered the SiC market in 2019, when it bought DuPont’s related business for $450 million. But demand for silicon carbide came in below forecasts as the electric vehicle market slowed, while aggressive capacity expansion by rivals created oversupply.
For 2025, SK Siltron reported a net loss of 29.36 billion won — about $21 million — which the company largely ties to its SiC business. That prompted a decision to exit the segment completely and refocus on its core operation: silicon wafers for semiconductors.
At the same time, SK Siltron is still expanding that core business. The company recently brought a fourth plant online in Gumi, South Korea, after investing 2.3 trillion won in the project. It expects the site to lift production capacity by about 50% and strengthen its position in the market for 300 mm silicon wafers.
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Enterprise Editor
Marcus follows the money. He covers enterprise software, cloud architecture, and the tectonic shifts in Big Tech strategy. He translates dense earnings calls and complex M&A activity into actionable insights about where the industry is actually heading. If a tech giant makes a silent pivot, Marcus is usually the first to notice.
via iXBT
