CMOC or CMOC Group Limited, previously known as China Molybdenum Company Limited, is the largest molybdenum producer in Mainland China and among the world's largest companies in the field. It is listed on the Hong Kong Stock Exchange and Shanghai Stock Exchange. In addition, it is also one of the largest tungsten producers in the world, and is the second largest producer of Cobalt and Niobium as well as leading Copper producer worldwide. The company's headquarters are located in Luanchuan County, close to the city of Luoyang City in Henan. As of 2022, they are ranked 74th in the Fortune China Top 500. Wikipedia