Founded in 1936, HEC is the earliest manufacturer in China engaged in chlor-alkali chemicals. After two relocations it launched a new undertaking at Linjiang Industrial Park. HEC has 12 holding and share participating companies, including a joint venture, and has been honored as the Top 500 Competitive Large Enterprises for four consecutive years, and listed among the “Five Batches” key enterprises and innovation pilot units. It has set up a provincial technical center and an intermediate test base, focusing on product upgrading and innovation. The output value of high tech products achieved a growth of 50%. Located at Linjiang high-tech industrial park, Hangzhou Electrochemical Group Additives Chemical Co., Ltd, is a holding stock subsidiary of Hangzhou Electrochemical Group Co., Ltd. At the end of 2018, all the shares are bought by HEC and it has become a wholly owned subsidiary, accepting integrated management of HEC. As one of the earliest manufacturers engaged in producing, researching and developing surfactants and polyether polyols, it boasts advanced process equipment, experienced technical forces and complete testing device, and has become an enterprise of new model integrating scientific research, manufacturing industry and trade. As a national high-tech enterprise, it specializes in manufacturing nonionic surfactant products, including leveling agent, emulsifier, penetrating agent, detergent, and soft / hard foam polyether polyols, special POP, glass fiber treatment agent, etc., with an annual capacity of 20, 000 tons. With its product leveling agent O awarded the national silver medal, it is the main drafting unit for the industrial standard of the Product. Over the years it is dedicated to rendering the service of R & D and application in the field of textile, printing & dyeing, detergent, glass fibers, chemical fibers, dyes, pharmaceuticals, pesticides, fertilizers, foods, paper making, leather, coatings, waterproof & leakage preventing materials an