Tangshan Haoyu Science and Technology Development Co., Ltd.Founded in 2009. It is a joint-stock private enterprise specializing in technology research and development, innovation integration and industrialization of carbonate products. Mr. Qu Qianghao, the founder of the company, presided over the construction and operation of the domestic industrial plant for the production of dimethyl carbonate by transesterification in the former Chaoyang Chemical General Plant of Tangshan City as early as 1996. Since then, he has been engaged in technological improvement, innovation and industrialization in this field. He has applied for 24 patents and owned a single large-scale plant. Three proprietary technologies for energy integration system and continuous distillation production, 13 successful transfer and technological transformation services to the outside world