Shandong Tesi New Material Co., Ltd plans to build the project of 40 kt/a trichlorosilane (TCS) with the co-production of 6,500 t/a STC, whose environmental impact assessment report was publicized on June 16th by Liaocheng Administrative Examination and Approval Service Bureau. The new project is located in the south of Xingyun Street and the east of Changyun Road in the Shenxian Chemical Industry Park, Guyun Rural Town, Shenxian County. With the total investment of RMB 436.2 million, the project is to produce 40 kt/a of TCS and co-produce 6,500 t/a of STC, as well as have byproducts of 40 t/a of hydrochloric acid and 420.2 t/a of sulfuric acid, using hydrogen, chlorine and silicon powder as raw materials by the chlorination reaction.