Thai-China Company is the first overseas resource enterprise of China Nonferrous Metal Mining (Group) Co., Ltd., and also the overseas enterprise that takes the lead in trying resource recycling and recycling economy in China, the output of lead and lead alloy occupies more than 30% of Thailand market, the production of fine lead, lead-antimony alloy and lead-tin alloy, etc. is exclusive, and considered as the successful instance for Chinese investment in Thailand.