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Suzhou Dawning Semi develops silicon photonics chips, optical engines, and optical modules.
Founded in 2020 and based in Suzhou, China, Suzhou Dawning Semi develops silicon photonics products, including optical engines, modules, and embedded engines for data centers, 5G, and interconnection. It has R&D centers in Shanghai and Berlin. In April 2026, it closed Series D funding from Suzhou Yongxin Fangzhou Investment, Lanqi Invesment, Shanghai Zhezhong Group, Zhuiyuan Venture Investment, Shenzhen Capital Real Estate Fund, and Infore Management.
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