East Third Ring Road, Panlong District, Kunming. There is a Kunming gold purification and processing center in the East Third Ring Road of Panlong District, Kunming, which mainly deals in jewelry retail; Jewelry recycling, processing and repair services. Among them, gold bars were changed to gold services. Kunming, also known as Spring City, is a prefecture-level city, provincial capital, megacity and central city in central Yunnan, one of the important central cities in western China determined by the State Council, and an important tourist and commercial city in China.