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Prosemi develops precision current sensing components and circuit protection products.
Founded in 2019, Prosemi develops current sensing resistors and circuit protection solutions for power measurement, energy monitoring, and control applications. Its products are used in battery management, motor drives, inverters, and converters across consumer, automotive, smart home, new energy, and industrial markets. The company is based in Suzhou, China, and has more than 80 patents. In October 2025, it raised Series A+ funding led by Qianhai Ark Asset Management and Shenzhen Capital Real Estate Fund, with GTJA Innovation Investment and Guotai Asset Management participating.
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