Jiangsu Shemar Electric Co.,Ltd engages in the research and development, production, and sale of composite external insulation for power system substations, composite external insulation for transmission and distribution lines, and rubber seals in China. It offers transmission line products, including line post, braced line post, and composite insulated cross-arm insulators, as well as substation post insulators; and distributes distribution line post insulator. The company also engages in the technology development and transfer, technology consultation, and technology services in the field of science and technology; import and export of goods and technologies; e-commerce; and sale of rubber products, power equipment and spare parts, and mechanical molds. In addition, it provides hollow, pillars, line insulators and bushings, transmission towers and crossarms, transmission conductors, dry-type insulated tubular busbars, cable accessories, substation supports, gas-insulated pipeline busbars, basin insulators, insulator auxiliary sheds, power transmission and distribution equipment and their parts; and sells of mechanical molds and accessories, as well as offers technical development, technical support, technical services, and technical consulting services. Further, the company is involved in the export activities; import business for mechanical equipment, spare parts, raw and auxiliary materials and technologies; and investment and financing businesses. The company was founded in 1996 and is based in Nantong, China. Jiangsu Shemar Electric Co.,Ltd operates as a subsidiary of Shanghai Shenma Electric Power Holdings Co., Ltd.