Shanghai Xiongrun Resin Co., Ltd., established in 1999, is a specialized manufacturer of electrical epoxy resin insulation materials. The company has long been committed to the development of epoxy resins for insulation in medium- and high-voltage electrical equipment and has grown into a leading producer of comprehensive electrical epoxy resin products, covering applications across all voltage levels. Its products are widely used domestically and internationally in a variety of fields, ranging from low-voltage to extra-high-voltage equipment, including switchgear, transformers, reactors, instrument transformers, and electrical composite materials. Notable projects include the 500 kV Three Gorges Left-Bank Power Station, the 750 kV Vadali Power Project in India, and the 1,100 kV Nanyang Extra-High-Voltage Substation, among others.