- Welcome To CCKS Homepage! Address: 3 Teck Whye Crescent Singapore 688845 Telephone: 7655228 Facsimile: 7636807 E-mail Address: Webmaster Principal : Ms Rosalind Sim Vice-principal: Mr Koh Jee Leong This webpage was last updated on 19/12/01. Thanks for visiting our webpage. ...schools.moe.edu.sg/cckss