Ching was formerly a policeman who was, for a while, an otah seller, before becoming a contractor for property companies such as Macly Group and Fragrance Group. Later on he began to develop his own projects, and in 2010, joined forces with Eric Low See Ching to form Oxley Holdings, which was listed in the same year.
http://singaporestockmarketnews.blogspot.sg/2014/09/oxley-holdings-former-otah-seller-ching.html
http://singaporestockmarketnews.blogspot.sg/2014/09/oxley-holdings-former-otah-seller-ching.html