Profitability from the development of low-grade resources is a clear edge of the Company’s zinc business. According to China Mineral Resources 2020, the national zinc reserve volume was 202.3517 million tonnes. In 2020, the zinc resource reserve volume of the Company was approximately 10.33 million tonnes, representing approximately 5.10% of the total volume in China. In accordance with the statistics disclosed by the China Nonferrous Metals Industry Association, in 2020, the national mine-produced zinc production volume was 2.7686 million tonnes, while the Company’s mine-produced zinc production volume was 342.1 thousand tonnes, representing approximately 12.36% of the total volume in China.