Chuanheng Co., Ltd. and its subsidiaries have been granted the invention patent certificate for "fluorosilicic acid concentration process".

Recently, Guizhou Chuanheng Chemical Co., Ltd. and its holding subsidiary Guangxi Pengyue Ecological Technology Co., Ltd. received a patent certificate issued by the National Intellectual Property Office. The patent number is ZL202310782879.9, entitled "A Concentration Process of Fluorosilicic Acid". The patent type is invention, the application date is June 29, 2023, the authorization announcement date is September 2, 2025, and the patent takes effect from the authorization announcement date. The acquisition of this patent helps to improve the company's intellectual property protection system, establish an innovative mechanism, maintain technological leadership, and enhance core competitiveness. This announcement was issued by the board of directors of Chuanheng Chemical on September 13, 2025.