| Session | Date | Venue | Chairperson | TAG Chairperson | Rapporteur (s) |
|---|---|---|---|---|---|
| 1 | 27 May - 2 June 1966 | Quezon City, Philippines | Fernando S./ Busvego, Jr. | - | - |
| 2 | 29 Oct. - 7 Nov. 1966 | Tokyo, Japan | Konosuke Sato | Hans Closs | - |
| 3 | 24 June - 4 July 1967 | Seoul, Korea | In Kyu Park | Hans Closs | - |
| 4 | 6 - 16 Nov. 1967 | Taipei, Taiwan | Jerome S. N. Hu | J.M. Rayner | - |
| 5 | 10 - 19 June 1968 | Tokyo, Japan | Konosuke Sato | J.McG. Bruckshaw | - |
| 6 | 13 - 27 May 1969 | Bangkok, Thailand | Vija Sethaput | A.G. Obermuller | - |
| 7 | 17 - 23 May 1970 | Saigon, Vietnam | Pham Minh Dovng | K.O. Emery | - |
| 8 | 6 - 16 July 1971 | Manila, Philippines | Fernando S./Busuego, Jr. | W. Bullerwell | - |
| 9 | 20 Nov. - 2 Dec. 1972 | Bandung, Indonesia | Johannas | W. Bullerwell | - |
| 10 | 10 - 22 September 1973 | Bangkok, Thailand | Saman Buravas | Hans Closs | - |
| 11 | 7 - 21 August 1974 | Seoul, Korea | Joung Hwan Lee | Hans Closs | - |
| 12 | 8 - 22 August 1975 | Tokyo, Japan | I. Kobayashi | W. Bullerwell | - |
| 13 | 22 Nov. - 6 Dec. 1976 | Kuala Lumpur, Malaysia | S.K. Chung | L.C. Noakes | - |
| 14 | 21 Sept. - 4 Oct. 1977 | Manila, Philippines | Juanito C. Fernandez | W. Bullerwell | - |
| 15 | 22 Oct. - 6 Nov. 1978 | Singapore | Lee Yock Suan | J.A. Reinemund | - |
| 16 | 10 - 18 September 1979 | Bandung, Indonesia | Ismet Akil | J.A. Reinemund | - |
| 17 | 4 - 17 November 1980 | Bangkok, Thailand | Sangob Kaewbidhoon | J.A. Katili | - |
| 18 | 21 Sept. - 2 Oct. 1981 | Seoul,Korea | Byung Koo Hyun | E. Oele | - |
| 19 | 29 Nov. - 10 Dec. 1982 | Tokyo, Japan | Junji Suyama | E. Oele | - |
| 20 | 7 - 18 October 1983 | Kuala Lumpur, Malaysia | Santokh Singh | C.R. Jones | - |
| 21 | 26 Nov. - 7 Dec. 1984 | Bandung, Indonesia | HMS Hartono | C.R. Jones | - |
| 22 | 11 Oct. - 21 Nov. 1985 | Guangzhou, China | Wang Daxiong | E. Oele | - |
| 23 | 3 -13 November 1986 | Madang, PNG | W.D. Searson | C.R. Jones | - |
| 24 | 28 Oct. - 7 Nov. 1987 | Bangkok, Thailand | Sivavong Changkasiri | C.R. Jones | - |
| 25 | 5 - 13 December 1988 | Baguio City, Philippines | Celso R. Roque | C.R. Jones | M.J. Keen |
| 26 | 24 Oct. - 3 Nov. 1989 | Bangkok, Thailand | Visith Noiphan | R. Sinding-Larsen | Brian D. Bornhold |
| 27 | 6 - 12 November 1990 | Seoul, Korea | Jee Dong Kim | R. Sinding-Larsen | A.J. Reedman |
| 28 | 29 Oct. - 2 Nov. 1991 | Bangkok, Thailand | Visith Noiphan | A.J. Reedman | A.J. Reedman |
| 29 | 3 - 7 November 1992 | Hanoi, Vietnam | Nguyen Hiep | Henk Schalke | A.J. Reedman |
| 30 | 9 - 13 November 1993 | Bali, Indonesia | Adjat Sudradjat | A.J. Reedman | Sahng Yup Kim/Henk Schalke / E.D. Hackman |
| 31 | 18 - 22 October 1994 | Kuala Lumpur,Malaysia | Fateh Chand | Henk Schalke | A.J. Reedman / T. Suntharalingam |
| 32 | 27-30 September 1995 | Tsukuba, Japan | Keigo Tabira / Takeo Sato | Naz Ahmed Shaikh | A.J. Reedman/Yunas Abdul Razak |
| 33 | 30 Oct. - 2 Nov. 1996 | Shanghai, China | Wang Xionglin | Ole W. Christensen | A.J. Reedman / Edwin Domingo |
| 34 | 7 - 11 October 1997 | Taejon, Korea | Wong-Haw Park/Pil-Chong Kang | A.J. Reedman | Henk Schalke / Joselito Duyanen |
| 35 | 20 - 23 October 1998 | Subic Bay, Philippines | Horacio C. Ramos / Griselda Bausa | A.J. Reedman | A.J. Reedman / Naz Shaikh /Chen Chick Pei |
| 36 | 26 - 29 October 1999 | Hanoi, Vietnam | Dr. Nguyen Hiep | A.J. Reedman | A.J. Reedman |
| 37 | 23-27 October 2000 | Bangkok, Thailand | Mr. Cherdpong Siriwit | Henk Schalke | David Ovadia |
| 38 | 22-26 October 2001 | Phnom Penh,Cambodia | H.E. Mr. Sov Chivkun | Dr. David Prior | Flemming Ole Rasmussen /Ekawat Sitthithaworn / Nordin Ramli |
| 39 | 22-25 October 2002 | Yogyakarta, Indonesia | Dr. R. Sukhyar | Dr. David Prior | Jos L.J. de Sonneville / Jiang Shijin / Greta S. Lasut |
| 40 | 6-10 October 2003 | Kuala Lumpur, Malaysia | Dr. Chu Ling Heng | Dr. David Prior | Erling Kvadsheim / U.W.A. Sirisena/ Takemi Ishihara |
| 41 | 15-18 November 2004 | Tsukuba, Japan | Dr. Eikichi Tsukuda | Dr. David Prior | Dr. Eikichi Tsukuda/ Prof. Dr. Zhang Hongtao / Dr. David Howell |
| 42 | 13-18 September 2005 | Beijing, China | Mr. Ma Yongzheng | Dr. David Prior | Ms. Mak Boly / Ms. Yoon Hee Ahn / Dr. Ralph G. Currie |
| 43 | 29 October – 3 November 2006 | Daejeon, Republic of Korea | Dr. Dae-Gee Huh | Dr. David Prior | Dr. Sommai Techawan/ Mr. Nguyen Dang Lieu/Dr.Joseph L.J.deSonneville |
| 44 | 21-26 October 2007 | Cebu, The Philippines | Mr. Horacio C. Ramos | Dr. Jos de Sonneville | Mr. Nordin Ramli, Dr. Sevillo D. David Jr., Dr. David Ovadia |
| 45 | 23-28 November 2008 | Khon Kaen, Thailand | Mr. Satien Sukontapongpow | Dr. David Prior | Mr. Jamaludin Ohtman, Dr. Yunus Kusumahbrata,, Dr. Ralph G. Currie |
| 46 | 18-23 October 2009 | Vungtau, Vietnam | Dr. Nguyen Van Minh | Dr. Jos de Sonneville | Dr. Dhiti Tulyatid, Mr. Muzli B. Hussain, Dr. A.J. Reedman, Dr. Ralph G. Currie |
| 47 | 17-21 October 2010 | Manado, North Sulawesi, Indonesia | Dr. Achmad Djumarma Wirakusumah | Dr. David Prior | Dr. Kamaluddin, Dr. Sevillo David,Dr. David Ovadia and Dr. A. J. Reedman (Honorary Adviser to CCOP) |
| 48 | 5-8 November 2012 | Langkawi, Malaysia | Dato’ Yunus Abdul Razak | Ms. Franca Schwarz | Dr. Nguyen Hong Minh/ Ms. Carmel Lowe |
| 49 | 21-24 October 2013 | Sendai, Japan | Dr. Eikichi Tsukuda | Ms. Franca Schwarz | Mr. Azhar Yusof / Dr. Rien A.C. Dam |
| 50 | 21-24 October 2014 | Kokopo, Papua New Guinea | Mr. Shadrach Himata | Ms. Franca Schwarz | Dr. Zhang Minghua/ Mr. Per Blystad |
| 51 | 24-27 November 2015 | Xi’an, People’s Republic of China | Mr. Ma Yongzheng | Mr. Ioannis Abatzis, Vice-Chairman | Mr. Hee Soo Kim/ Dr. Michael Patterson |
| 52 | 31 October - 3 November 2016 | Bangkok, Thailand | Dr. Sommai Techawan | Ms. Franca Schwarz | Dr. Zhang Minghua / Mr. Gunnar S?iland |
| 53 | 16-19 October 2017 | Cebu City, Philippines | Atty. Wilfredo G. Moncano | Mr. Ioannis Abatzis, Vice-Chairman | Ms. Wanida Rangubpit / Dr. Philip Hill |
| 54 | 28 October - 1 November 2018 | Busan, Republic of Korea | Dr. Young Joo Lee | Mr. Ioannis Abatzis | Mr. Zamri Bin Ramli / Dr. Toshihiro Uchida/ Dr. Arne Hoffmann-Rothe |
| 55 | 3-7 November 2019 | Chiang Mai, Thailand | Dr. Sommai Techawan | Mr. Ioannis Abatzis | Ms. Liu JiaMs./Ms. Wanida Rangubpit / Dr. Choun-Sian Lim |
| 56 | 3-4 November 2020 |
Bangkok,
Thailand (Virtually Meeting, hosted by the CCOP Technical Secretariat and Department of Mineral Resources (DMR) |
Mr. Montri Luengingkasoot | Mr. Ioannis Abatzis |