| An Yi | 30-Mar-17 | 10-Aug-18 | J-Ch | | |
| Cai Xin | 09-Apr-08 | 25-Mar-09 | INED | | |
| Chan Charles Wai Dune | 16-Aug-00 | 13-Aug-05 | INED | | |
| Chan Katherine Wai Kay | 29-Aug-12 | 07-Jun-24 | Dep Ch | | |
| 06-Feb-09 | 29-Aug-12 | Ch | | |
| Chan Laura Man Kuen | 06-Feb-09 | 10-Aug-11 | INED | | |
| Chan Lok Yin | 10-Aug-22 | 02-Dec-22 | CoSec | | No reasons provided |
| 02-Dec-22 | AuRep | | No reasons provided |
| Chang William Ye Min | 28-Jan-05 | 01-Jun-06 | NED | | |
| 28-Jan-05 | CEO, Pres | | |
| Chang Xiao Hui | 28-Jan-05 | 01-Jun-06 | CEO | | |
| 01-Aug-01 | ED | | |
| Chen Junliang | 16-Aug-00 | 01-Jul-05 | INED | | |
| Chen Ning | 24-Nov-23 | 28-Aug-24 | CoSec | | No reasons provided |
| 28-Aug-24 | AuRep, Proc Agt | | No reasons provided |
| Cheng Wing Tsan | | 31-Mar-03 | CoSec | | |
| 01-Aug-01 | 31-Mar-03 | ED | | |
| Cheung Freada Kwan | 06-Feb-09 | 25-Mar-09 | ED | | |
| Chiu Calvin Chun Kit | 06-Feb-09 | 01-May-09 | INED | | |
| Chow Paul Wan Hoi | 01-May-09 | 31-Jul-12 | INED | | |
| Dai Qi | 29-Dec-16 | | ED | | |
| 12-Aug-13 | 29-Dec-16 | NED | | |
| Fu Hui Zhong | 25-Mar-09 | 24-Apr-12 | NED | | |
| 16-Jul-07 | 30-Apr-08 | CEO | | |
| Guan Chenghua | 28-Mar-20 | | INED | | |
| Guo Guanglei | 28-Mar-25 | | INED | | |
| Guo Qingui | 29-Dec-16 | 30-Jun-22 | INED | | Retired as less than 50% of the votes were cast in favour of his re-election |
| Hao Xia | 24-Aug-20 | 18-Feb-22 | FD | | |
| 18-Feb-22 | ED, CFO | | To allocate more time for pursuing her other career development |
| Hu Zhao Guang | 30-Jul-12 | 02-Sep-14 | INED | | |
| Izutsu Yukihiko | 01-Jun-06 | 07-Jul-07 | NED | | |
| Jia Wenzeng | 25-Mar-09 | 04-Nov-23 | INED | | Due to Mr. Jia need to devote more time to personal matters |
| Jin Dunshen | 30-Dec-05 | 09-Apr-08 | INED | | |
| Jin Feng | 31-May-03 | 01-Jun-06 | ED | | |
| Kei Siu Ying | 02-Dec-22 | 17-Nov-23 | CoSec | | No reasons provided |
| 17-Nov-23 | AuRep | | No reasons provided |
| Leong Christopher Ka Cheong | 26-Sep-03 | 10-May-06 | NED | | |
| Li Jun Chao | 28-Jan-05 | 01-Jun-06 | ED | | |
| Li Junlin | 01-Dec-05 | 15-Feb-08 | INED | | |
| Li Zhi Sheng | | 31-May-03 | COO, ED | | |
| Liao Yuan | 28-Aug-24 | | NE J-Ch | | |
| 05-Jul-23 | 28-Aug-24 | NED | | |
| Liu Dajun | 12-May-15 | 30-Mar-17 | J-Ch | | |
| Liu Ening | 12-Mar-21 | | NED | | |
| 14-Nov-19 | 12-Mar-21 | Alt NED | | |
| Liu Yang | 28-Jan-05 | 17-Dec-08 | INED | | |
| Lo Wai Shun | 16-Dec-99 | 28-Jan-05 | NED | | |
| Lu Chuan | 01-Sep-08 | 25-Mar-09 | NED | | |
| Luk Hoi Man | 21-Mar-12 | 24-Aug-12 | NED | | |
| Ms. Chan Wai Kay, Katherine | | 07-Jun-24 | ED | | No reasons provided |
| Ng Ching Wo | 16-Aug-00 | 28-Jan-05 | INED | | |
| Nie Dan | 28-Aug-24 | | CoSec | | |
| Pan Ya | 30-Jun-22 | | CFO | | |
| 14-Mar-22 | 30-Jun-22 | FD | | |
| 30-Jun-22 | ED | | Due to the wish in allocating more time to focusing on the operation of the Company. Mr. Pan shall remain as the chief financial officer |
| Soo Jeffrey Kim Fui | 06-Feb-09 | 15-Oct-11 | FD | | |
| Tsang Tony Wing Ming | 30-May-02 | 24-Jan-03 | Alt NED | | |
| Wang Manquan | 24-Aug-20 | 30-Jun-22 | COO, ED | | Due to the wish in allocating more time to focusing on the operation of the Company. Wang shall remain as vice president of the Group. |
| 29-Dec-16 | 24-Aug-20 | CEO | | |
| 13-Jul-16 | 29-Dec-16 | CEO, Non-Dir | | |
| Wang Michael Zhi Yu | 15-Aug-19 | 12-Mar-21 | NED | | |
| Wang Qian | 29-Dec-03 | 10-May-06 | Alt NED | | |
| Wang Yan | 04-Feb-21 | 14-Jun-22 | ED | | Due to the internal work adjustment by China Energy Conservation and Environmental Protection Group |
| 10-Aug-18 | 04-Feb-21 | J-Ch | | |
| Wong Lai Yuk | 31-Mar-03 | 10-Aug-22 | CoSec | | No reasons provided |
| 10-Aug-22 | AuRep | | No reasons provided |
| Wong Simon Kwong Chi | 16-Dec-99 | 24-Jan-03 | NED | | |
| Woo Adrian Chin Pang | 16-Aug-00 | 24-Jan-03 | NED | | |
| Wu De Sheng | 21-Mar-12 | 04-Nov-23 | INED | | |
| Wu Desheng | | 04-Nov-23 | INED | | Due to Mr. Wu need to devote more time to personal matters |
| Wu Qiang | 29-Dec-16 | 28-Mar-25 | INED | | To dedicate more time to his scientific research work. |
| 28-Mar-25 | MbAC, MbCC, MbNC | | To dedicate more time to his scientific research work. |
| Wu Shu Min | 06-Feb-09 | 24-Apr-12 | ED | | |
| 31-Dec-99 | 06-Feb-09 | Ch | | |
| Wu Xiaohua | 24-Aug-12 | 12-Aug-13 | NED | | |
| Xu Genghong | 24-Aug-12 | 12-Aug-13 | NED | | |
| Xu Shengheng | 28-Aug-24 | | J-Ch | | |
| 04-Feb-21 | 28-Aug-24 | Ch | | |
| 06-Jul-16 | 04-Feb-21 | J-Ch | | |
| 12-May-15 | 06-Jul-16 | Ch, CEO | | |
| 06-Feb-09 | 12-May-15 | CEO | | |
| Xu Zhi Feng | 07-Jul-06 | 06-Feb-09 | ED | | |
| Xue Jiangyun | 30-Jun-22 | 02-Dec-22 | CEO, Non-Dir | | |
| 14-Mar-22 | 30-Jun-22 | CEO | | |
| 30-Jun-22 | ED | | Retired as less than 50% of the votes were cast in favour of his re-election. But Mr. Xue shall remain as the chief executive officer |
| 24-Aug-20 | 14-Mar-22 | CEO, Non-Dir | | |
| Yang Mingzhong | 02-Dec-22 | | CEO, Non-Dir | | |
| Yang Wei | 30-Jun-22 | 05-Jul-23 | Dep Ch, NED | | Due to the work assignment adjustment by China Energy Conservation and Environmental Protection Group |
| 10-Aug-18 | 30-Jun-22 | NED | | |
| Yau Kiam Fee | 10-Aug-11 | 01-Feb-12 | INED | | |
| Zang Yiran | 22-Mar-13 | 24-Aug-20 | FD | | |
| 24-Aug-12 | 22-Mar-13 | NED | | |
| Zhang Honghai | 10-Nov-23 | | INED | | |
| 02-Sep-14 | 01-Jan-17 | INED | | |
| Zhang Lai | 14-Mar-08 | 06-Feb-09 | INED | | |
| Zhang Wei | 28-Mar-24 | 21-Oct-24 | ED | | Due to the wish to allocate more time to focusing on the operation of the Company. |
| Zhang Yiying | 16-Jan-20 | | NED | | |
| Zhao Youmin | 12-Aug-13 | 10-Aug-18 | NED | | |
| Zheng Qiyu | 29-Aug-12 | 12-May-15 | Ch | | |
| 24-Aug-12 | 29-Aug-12 | ED | | |
| Zhu Rong | 01-Jun-01 | 28-Jan-05 | NED | | |
| 31-Dec-99 | 01-Jun-01 | ED | | |
