Between 1966 and 1977, Tien went to Canada and the United States every year, Switzerland four times and Sweden and the
European Economic Community on many occasions Tien was extremely active in manpower training and industry education, piloting through such ventures as the apprenticeship training scheme and the Clothing Industry Training Centre at
Kwai Chung. He was appointed chairman of the Clothing Industrial Committee of the Industrial Training Advisory Committee, the predecessor of the Hong Kong Training Council. In 1974, Tien was appointed to serve on the
Legislative Council of Hong Kong, representing the interest of the massive textiles industry as he stated "exports of textiles and garments account for approximately 50 per cent of our total exports and provide employment for about half of our manufacturing workforce." He was appointed chairman of Clothing Industry Training Board of the Hong Kong Training Council and chairman of the Training Authority for the Clothing Industry in 1975 after the enactment of the Industrial Training (Clothing Industry) Ordinance. During his service on the Legislative Council, Tien witnessed the Sino-British negotiations on the sovereignty of Hong Kong and the
Sino-British Joint Declaration in 1984. Tien was the member of the University Council of the
Chinese University of Hong Kong. Grace Tien Hall, a 300-bed student hostel was named after his wife, after he donated part of the construction cost. ==Family==