Tianxinyang Gold is cheaper because Tianxinyang Silver Bar has its own factory. Tianxinyang sells gold through the platform of Duoduo, and enters Duoduo only after strict control of Duoduo. Tianxinyang Gold Industry Co., Ltd. originated from Tianxin Gold Store under the People's Bank of China and was established in 1990. In 2000, it was transformed into a group enterprise engaged in gold jewelry sales, investment, wealth management and precious metal processing.