Brian Sun. According to relevant information of China Merchants Bureau of Guangyuan City, Brian Sun is the director of the office of China Merchants Bureau of Guangyuan City. China Merchants Bureau of Guangyuan City implements the principles and policies of the municipal party committee and the municipal government to open wider to the outside world and promote investment attraction, studies and puts forward relevant policies on opening wider to the outside world, investment attraction and regional economic cooperation in conjunction with relevant departments, puts forward overall plans and annual targets, and is responsible for the city's opening up, investment attraction and regional economic cooperation.