| WILLIAMS, Ian John ACTIVE | Secretary | 01 Mar 2015 | | | | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP |
| OE, Genya ACTIVE | Director | 01 Mar 2023 | | Wales | August 1970 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP |
| SASAKI, Noriaki ACTIVE | Director | 01 Jul 2021 | | Japan | November 1959 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP |
| WILLIAMS, Ian John ACTIVE | Director | 01 Apr 2024 | | Wales | June 1961 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP |
| ALLAN, James Alexander RESIGNED | Secretary | 01 Jun 2006 | 31 Dec 2006 | | | 5 Everest Walk, Llanishen, Cardiff, South Glamorgan, CF14 5AX |
| JONES, Stephen Thomas RESIGNED | Secretary | 01 Jan 2007 | 31 Dec 2014 | | | Lyndholme, Lower Leigh Road, Pontypool, Gwent, NP4 8LQ |
| KUMON, Hiroshi RESIGNED | Secretary | | 17 Jul 1993 | | | 2 Kiln Way, Northwood, Middlesex, HA6 3SD |
| WHITEHOUSE, Malcolm Anthony RESIGNED | Secretary | 27 Jun 1996 | 31 May 2006 | | | 12 Swan Gardens, Tetsworth, Oxfordshire, OX9 7BN |
| YOKOSAWA, Shigeru RESIGNED | Secretary | 17 Jul 1993 | 27 Jun 1996 | | | 27 West Rise, Llanishen, Cardiff, South Glamorgan, CF4 5RE |
| HATTORI, Naomichi RESIGNED | Director | | 17 Jul 1993 | | April 1942 | 30 Crystal Avenue, Cardiff, South Glamorgan, CF2 5QL |
| ICHIKAWA, Hitoshi RESIGNED | Director | 01 Jul 2020 | 30 Jun 2021 | Japan | June 1956 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP |
| ICHIKAWA, Hitoshi, Mr. RESIGNED | Director | 12 Apr 2010 | 31 Mar 2014 | United Kingdom | June 1956 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP, United Kingdom |
| KITAMURA, Yoshimasa RESIGNED | Director | 01 Jan 2014 | 01 Aug 2018 | Japan | June 1958 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP, United Kingdom |
| KUMON, Hiroshi RESIGNED | Director | | 30 Sep 2006 | | October 1952 | 54 Eastbury Road, Northwood, Middlesex, HA6 3AW |
| MINAMIKAWA, Yoshiharu RESIGNED | Director | | 27 Jun 1996 | | October 1937 | 5-50-21 Higashiomiya, Omiya-Shi Saitama-Ken, FOREIGN, Japan |
| MINATO, Masaharu RESIGNED | Director | 01 Jun 2006 | 31 Dec 2011 | Japan | March 1949 | Yotukaidou, Tiba, 284 - 0043, Japan |
| NOZAWA, Jiro RESIGNED | Director | 11 Jul 1995 | 31 May 2006 | | May 1944 | 18-16 I-Chome Naka, Kunitachi-Shi Tokyo 186, Japan, FOREIGN |
| SAKABE, Sanjiro RESIGNED | Director | | 11 Jul 1995 | | May 1923 | 5-4-23 Shimoshakusii, Nerima-Ku Tokyo, FOREIGN, Japan |
| SAKABE, Sashi RESIGNED | Director | | 01 Jul 2004 | | June 1950 | 5-4-23 Shimoshakujii, Nerlma-Ku, Tokyo, Japan |
| TAKAGI, Tetsuo RESIGNED | Director | 20 Jul 2018 | 29 Mar 2023 | Wales | October 1970 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP |
| TANAKA, Daisuke RESIGNED | Director | 01 Apr 2014 | 20 Jul 2018 | Wales | May 1972 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP, United Kingdom |
| UEDA, Masahiro RESIGNED | Director | 01 Oct 2006 | 12 Apr 2010 | | November 1946 | 24 The Aspect, 140 Queen Street, Cardiff, South Glamorgan, CF10 2GP |
| UNO, Akira, Mr. RESIGNED | Director | 01 Jan 2012 | 31 Dec 2013 | Japan | March 1947 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP, United Kingdom |
| YAMADA, Hidenobu RESIGNED | Director | 01 Aug 2018 | 30 Jun 2020 | Japan | October 1965 | Unit 7, Trident Park, Glass Avenue, Cardiff, CF24 5EP |