China National Chemical Geology: The company's stock will be subject to delisting risk warning on April 21st.

Announcement from Zhonghua Rock and Soil: By the end of 2025, the net assets attributable to the shareholders of the company are negative as audited. The company's stock will be suspended for one day on April 20, 2026, and trading will resume on April 21, 2026. After implementing the delisting risk warning, the company's stock abbreviation will change from "Zhonghua Rock and Soil" to "*ST Zhongyan", with the stock code remaining "002542". The daily trading limit for the company's stock will be 5%.