Mitsui Corporation of Japan, Mitsubishi, Nissho Iwai, Itochu, Toyota, Denso, Dongmian Company, Daewoo Company of Korea, Cargill, Rothden-Prenat, Timken and Phelps Dodge Company of the United States, Elf and Total Company of France, GB Company of Germany, Lianhua Industrial Co., Ltd. of Taiwan Province Province, Hong Kong New World, Bank of China Group, China Merchants Group and China Resources Group.
I don't know the address or the telephone number.
You'd better check out their website.