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Beijing-based company, founded in 2024, researching and producing BCB photoresists and electronic packaging materials for semiconductors.
Based in Beijing, China, and founded in 2024, Beijing Guangyin Polymerization Technology Co., Ltd., doing business as OptiPack Innovations, researches, develops, produces and sells benzocyclobutene (BCB) photoresists and derivative materials. It has a production facility in Tai'an, Shandong. Its BCB electronic packaging resins are used in semiconductor packaging and microelectronics. In September 2026 it closed a Pre-series A round from Wenrun Investment and Shenyang Shengke Private Equity Fund Management.
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