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According to onsemi, the US semiconductor manufacturer has canceled its previously announced $2 billion expansion plan in Rožnov pod Radhoštěm, eastern Czech Republic, citing changes in global silicon carbide (SiC) wafer market conditions. The company emphasized that its existing manufacturing operations in the country will remain unaffected and that it will continue investing in the Czech Republic as part of its long-term business strategy.

In 2024, onsemi announced plans to invest $2 billion in expanding its Rožnov facility, with the goal of establishing a fully integrated silicon carbide (SiC) manufacturing supply chain for advanced semiconductor products. Rožnov serves as the company's main manufacturing base and research and development (R&D) center in the Czech Republic, while onsemi also operates a branch office in Brno, the country's second-largest city.

In a press release issued on November 6, onsemi confirmed its decision to cancel the expansion project, explaining that the move reflects changing conditions in the global SiC market. Despite the cancellation, the company reiterated that the Czech Republic remains an important location for its long-term manufacturing and growth strategy.

According to the Czech News Agency (ČTK), Czech Industry and Trade Minister Karel Havlíček said that existing production activities in Rožnov would remain unchanged. The Czech government values its long-standing cooperation with onsemi and welcomes the company's continued development of R&D activities in the country. Havlíček also noted that onsemi plans to pursue other investments in Rožnov and Brno.

onsemi stated that it expects to continue investing in the Czech Republic and hiring employees, particularly in areas related to the automotive industry and AI data centers, where it sees further growth opportunities. The company stressed that canceling the expansion project does not change its commitment to its Czech operations and workforce, nor does it rule out additional investments in the future.

However, the decision comes amid workforce reductions at the company's Czech operations. In April 2025, onsemi laid off 170 employees, including 149 workers at its main Rožnov facility. In May 2026, the company announced another round of job cuts affecting between 200 and 300 employees, primarily in its silicon carbide wafer manufacturing division.