惠丰钻石：对外投资设立全资子公司的公告

Group 1 - The core point of the article is that Huifeng Diamond announced the establishment of a wholly-owned subsidiary in the Inner Mongolia Baotou Kunlun Economic and Technological Development Zone with a registered capital of 100 million RMB [2] Group 2 - The fourth board meeting of the company will be held on February 5, 2026, to review the proposal for the investment [2]