贵研铂业：关于子公司完成工商变更登记的公告

Group 1 - The company Guizhou Yanfeng Platinum Industry announced that its wholly-owned subsidiary, Guizhou Yanfeng Electronic Materials (Yunnan) Co., Ltd., has completed the business change registration and the filing of the Articles of Association [1] - The subsidiary has obtained a new business license issued by the Kunming Market Supervision Administration [1]