Technical renovation project for Chengde Yingke New Materials’ plant capable of producing 20,000 tons per year of fine chemicals such as potassium fluoride and ammonium hydrogen fluoride；

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On January 9, the environmental protection compliance reports for the completion of Yingke New Materials Co., Ltd.’s projects – including a facility capable of producing 20,000 tons per year of potassium fluoride and ammonium bifluoride as fine chemicals, a technical upgrade project for optical-grade fluorides, and an expansion project to increase potassium fluoride production by 5,000 tons per year – were simultaneously made public on relevant websites. The relevant information is as follows: Project 1: https://mmbiz.qpic.cn/sz_mmbiz_gif/sBsb9vJYMm7oSoOJGMtdYxPhR3U2ibWanVtQ8zsicYIgalxhaNa1mFTSicQwj7hYjrGZTHAcT7pPBncVF4uJmjYgg/640?wx_fmt=gif&from=appmsg#imgIndex=5 Project name: Technical upgrade project for Yingke New Materials Co., Ltd.’s plant capable of producing 20,000 tons per year of fine chemicals such as potassium fluoride and ammonium hydrogen fluoride ； Location: Dongsanjia Village, Pingquan Town, Pingquan City, Chengde City, Hebei Province ； Construction unit: Yingke New Materials Co., Ltd ； Construction contents: Renovate the existing factory buildings and some facilities, newly purchase equipment such as metering tanks, iron melting kettles, temporary iron storage tanks, dephosphorization reactors, dephosphorization filter presses, rinsing tanks, and dephosphorization liquid storage tanks, and modify the existing process. The production capacity of the original main product remains unchanged, while the new by-product is iron phosphate. The existing production process for ammonium hydrogen fluoride remains unchanged; only a phosphorus removal step for the raw material fluorosilicic acid is added at the beginning of the process. The production capacity of the main product stays the same, while an additional by-product, iron phosphate, is generated during the phosphorus removal process. Public display period: January 9, 2026 – February 6, 2026.