Cheo is a graduate of Nanyang University, where he studied in the Department of Government and Public Administration.
In 2006, Heng represented PAP again as one of 5 team members of almost the same team led by Minister Lee Boon Yang and Minister Yaacob Ibrahim in Jalan Besar GRC against another SDA team composed of Teo Kway Huang Sebastian, Fong Chin Leong, Cheo Chai Chen, Yeo Boon Keng Vincent and Muhamad Ali bin Aman.
Joan Chen | Chen Kaige | Wan Chai | Peter Chen | Kelly Chen | Edison Chen | Chen Shui-bian | Masala chai | Cheo Chai Chen | Chen Yi (communist) | Nelson Chai | Jerome Chen | Chai Wan Road | Chai Wan | Terry Chen | Chen Yi | Chen Tuan | Chen Kun | Chang Chong-Chen | Wan Chai District | Robert Chen | Juliana Chen | Chen Wei | Chen | Chai Lai | William C. C. Chen | Wei Chen | Liou Chen Kuang | Li-Chen Wang | Li Chen |
In the 2006 general election, Teo contested under the SDA banner in the Jalan Besar GRC together with Fong Chin Leong, Cheo Chai Chen, Vincent Yeo and Muhamad Ali bin Aman against another team from the PAP composed of Lee Boon Yang, Yaacob Ibrahim, Heng Chee How, Lily Neo and Denise Phua.