Tangshan Sunfar New Materials Co., Ltd. said on December 5 that the silane coupling agent project phase III -- 15 kt/a silane coupling agent intermediates and the 73 kt/a related products, has come on stream. The total investment of RMB 1 billion was earmarked for the whole project. In the Phase I project, the company put RMB 310 million in the 15 kt/a silane coupling agent intermediates line, which came on line in October 2021. In the Phase II project, the company used RMB 327 million to build 73 kt/a coupling agent intermediates products line, construction was started in September 2020 and completed in December 2021.