The Secretary for Innovation and Technology, Mr Nicholas W Yang (second right), together with the Under Secretary for Innovation and Technology, Dr David Chung (first left); the Political Assistant to the Secretary for Innovation and Technology, Miss Lillian Cheong; and representatives of Yan Oi Tong visited several households living in social housing under the Community Housing Movement in Tuen Mun this evening (February 18). Surgical masks donated by private organisations to the Government are distributed to the elderly and grassroots families in need during the visit.