TD Holdings Inc TD Holdings (NASDAQ: GLG) Inks LOI to Buy Ownership of a Molybdenum Copper Ore TD Holdings, Inc. (NASDAQ: GLG) disclosed that the firm and the fully-owned unit of Tongdow E-Trade Limited have inked a letter of intent with Chenzhou Dingmei Silver Co., Ltd. for purchasing the ownership of a molybdenum copper ore in Kazakhstan.