The Chief Executive, Mr Sam Hou Fai, inspects the Purple Mountain Laboratories, in Nanjing, Jiangsu Province.
The Chief Executive, Mr Sam Hou Fai, inspects the Purple Mountain Laboratories, in Nanjing, Jiangsu Province.
The Chief Executive, Mr Sam Hou Fai, inspects the Purple Mountain Laboratories, in Nanjing, Jiangsu Province.

