The excavation trolley of our company's underground mine is mining in the mine located at the level of -340 meters underground. The underground mine has been mined since 1909, with an ore grade of 60% to 71%. Since the founding of New China, it has produced more than 100 million tons of rich ore for the country. Since the beginning of this year, the mine has actively implemented the "leaving the top pillar and then falling" process, and has significantly improved the circulation efficiency of the rich ore mine by optimizing the organization of production personnel and carefully formulating measures to ensure production and increase reserves. The recovery rate of rich ore in narrow ore bodies has reached 65%, which is at the leading level in the industry. In the first quarter of this year, the mine produced a total of 49,200 tons of rich ore, exceeding the planned target by 2.5%. These achievements demonstrate the company's continued efforts and effectiveness in improving resource utilization and production capacity.