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Sillumin develops integrated circuits for industrial control, power management, and communications.
Sillumin is the trade name of Shanghai Shuming Semiconductor, an electronics company established in 2013 and based in Shanghai, China. It develops TEC controllers, switching power supplies, and smart chips for industrial control, power management, optical communications, new energy, and automotive applications. In March 2026, it raised venture funding from Hangzhou Yingzhiqin Private Equity Fund Management.
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