Nantong. According to the official website of BOSS Direct Recruitment, Shennan Circuit goes to Nantong. Shennan is a brand of Nantong Shennan Circuit Co., Ltd. Shennan Circuit Co., Ltd. is a member of the Aviation Industry Corporation of China and a central enterprise under AVIC International. It was established in 1984. It is a high-tech enterprise with the strongest comprehensive strength in PCB R&D and manufacturing in China and is the chairman unit of China Printed Circuit Board Association.