Shanghai Wujiang New Material Technology Co.,Ltd., Shanghai Changwei Optical fiber Technology Co.,Ltd, and Nantong Toptube New Material Technology Co.,Ltd. are three 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.
-Nantong Toptube New Material Technology Company (founded in 2019) specializes in heat-shrink tube production and commercial radiation processing services. The company owns three irradiation accelerators which serve both external radiation processing contracts and in-house heat-shrink tube enhancement. Current heat shrink tube products include single-wall tubes for consumer electronics, dual-wall tubes for automotive applications, new energy tubes, and power busbar insulation solutions.
