Tangshan haoyu technology development co., ltd was established in 2009. Is a private company specializing in research and development, innovation integration and industrialization of carbonate products. As early as 1996, the founders of the company presided over the construction and operation of the first domestic industrial plant for dimethyl carbonate production by transesterification in the former Chaoyang Chemical General Factory in Tangshan City. Since then, they have been engaged in the improvement, innovation and industrialization of process technology in this field, and have applied for nearly 70 patents. They have five proprietary technologies for the preparation and use of synthetic catalysts for products (PC, EC, DMC, EMC and DBC), eight proprietary technologies for the large-scale single plant, energy integration system and continuous distillation production. 

     Tangshan Haoyu Technology Development Co., Ltd. is a cooperative and open company. It has established a good and lasting all-round and deep-seated strategic cooperative relationship with many universities, research institutes, engineering design and supporting equipment manufacturing units in related fields in China, such as personnel training, engineering design and project consulting, and has hired a large number of experts and scholars with high reputation at home and abroad as members of the company's expert advisory group and R&D support system. Through resource integration and complementary advantages, a new innovation force is formed, which greatly improves the level of innovation work. At the same time, the participation of the design team can better provide enterprises with one-stop service from pre-project consultation, mid-term engineering design to final training and start-up.