Qinghai Huading Industrial Co., Ltd. known as Qinghai Huading or just QHHD, is a holding company established in 1998 and listed on the Shanghai Stock Exchange in 2000. As of 12 June 2015, the company has a market capitalization of 4.682 billion CNY and employs over 4,000 staff. Through its various subsidiaries, the company is involved mainly in the manufacturing and distribution of machine tools, gearboxes, food machineries, elevator components and LED lightings. Wikipedia