Shanghai Wujiang New Material Technology Co.,Ltd. and Shanghai Changwei Optical fiber Technology Co.,Ltd are two companies invested by the same shareholder, each specializing in distinct product categories：

-Shanghai Wujiang New Materials Company (founded in 2008) focuses on developing and producing ultra-high flame-retardant materials, premium-grade color masterbatches, and food-grade masterbatches. Its products include masterbatches for PVC, PE, XLPE, TPE, TPEE, PP, TPU, PBT, PA, ABS, and PFA.

-Shanghai Changwei Optical fiber Technology Company (founded in 2013) specializes in manufacturing special optical cables including PTFE hollow tubes, TPEE hollow tubes, PTFE optical cables, optical-electrical composite cables, water-blocking cables, and MINI cables operable at -40°C.