Yes For example, the National Jewellery and Jade Quality Inspection and Testing Center (Chongqing) has a branch in Guangzhou, and the Guangzhou Branch of the National Jewellery and Jade Quality Supervision and Inspection Center Laboratory Co., Ltd. was established on February 27, 20 13, and its main business scope is to contact the head office business. Guangzhou, also known as Yangcheng and Huacheng, is the capital, sub-provincial city, national central city, megacity, international metropolis and international business center of Guangdong Province.