 In 1904 he became Acting Executive Engineer and from January 1906 was Executive Engineer.He was responsible for Tytam (also spelled Tai Tam) waterworks with intermediate dam, later the 2nd section of the Tytam Tuk with the construction of the then-largest dam in the Far East, which was officially opened by Sir Henry May in February 1918.He was also responsible for the typhoon shelter at Mong Kok Tsui.