CMOC or CMOC Group Limited (simplified Chinese: 洛阳钼业; traditional Chinese: 洛陽鉬業; pinyin: Luòyáng mù yè), previously known as China Molybdenum Company Limited, is a Chinese mining company and one of the world's largest producers of molybdenum, tungsten, niobium and cobalt. The company accounts for approximately one-third of global cobalt supply.
CMOC's headquarters are located in Luanchuan County, close to the city of Luoyang City in Henan. CMOC is listed on the Hong Kong Stock Exchange and Shanghai Stock Exchange, with state-owned entities holding a minority stake.