T J Technologies & Materials Inc (TJTM) is a part of US company headquarted in California， USA and offices in New York and Shanghai. This is one of the largest USA trading companies dealing in Rare Earth based materials， Non-Ferrous metals， alloys， zirconia and its compounds. Some of the end customers are in high tech industries such as: Computer and other high tech related industries， automotive， petroleum and chemicals， Fuel-cell and others. The company has a tremendous growth and is now entering in the 15th year of operation. Excellent customer base all over the world. Shanghai office is in the ideal Pu Dong downtown neighborhood.