What is Yang Yanchao's position? Sifang technical director

Yang Yanchao: Male, born in June, 1957, 1, China nationality, without permanent residency abroad; High school education. He used to be the technical director of Nantong Sifang Tank Storage and Transportation Equipment Manufacturing Co., Ltd., and now he is the director of Nantong Sifang Cold Chain Equipment Co., Ltd., the deputy chief engineer of technical system and the director of Nantong Sifang Tank Storage and Transportation Equipment Manufacturing Co., Ltd.