| SPURLING, Andrew ACTIVE | Secretary | 22 Jan 2021 | | | | 3c, Galliford Road Industrial Estate, Heybridge, Maldon, CM9 4XD, England |
| COLES, Michael John ACTIVE | Director | 28 Sep 2020 | | England | June 1968 | 3c Galliford Road, Galliford Road Industrial Estate, Heybridge, Maldon, CM9 4XD, England |
| BARROW, Jonathan Hayes James RESIGNED | Secretary | 28 Mar 2008 | 20 Jan 2021 | | | Aquatite House, Mabgate, Leeds, LS9 7DR |
| WOODHEAD, John RESIGNED | Secretary | | 28 Mar 2008 | | | 10 Dalesway, Guiseley, Leeds, West Yorkshire, LS20 8JN |
| ARAKAWA, Akihiko RESIGNED | Director | 29 Oct 2009 | 03 May 2013 | England | October 1962 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| ARISAWA, Tadatoshi RESIGNED | Director | 31 Mar 2005 | 20 May 2009 | | September 1966 | 16 William Cobbett House, 1 Scarsdale Place, London, W8 5SY |
| BARROW, Jonathan Hayes James RESIGNED | Director | 23 May 2011 | 29 May 2020 | England | April 1968 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| CROMPTON, Micheal John RESIGNED | Director | 15 Mar 2002 | 31 Mar 2013 | United Kingdom | June 1954 | 5, Holmwood, Greenacre, Bowdon, Cheshire, WA14 2SP |
| DOYLE, Derek Brendan RESIGNED | Director | | 20 Dec 2001 | | July 1944 | 12 Derwent Drive, Leeds, West Yorkshire, LS16 8JD |
| EDWARDS, Samantha Jane RESIGNED | Director | 23 May 2011 | 29 May 2020 | England | March 1971 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| FOXALL, Michelle RESIGNED | Director | 23 May 2011 | 10 Oct 2019 | England | June 1967 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| ITO, Makoto RESIGNED | Director | 03 Sep 2010 | 25 Jan 2013 | England | July 1961 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| KAJINO, Toshimasa RESIGNED | Director | 25 Jan 2013 | 03 May 2013 | United Kingdom | March 1967 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| KIHARA, Shinichi RESIGNED | Director | 20 May 2009 | 03 Sep 2010 | Japan | June 1960 | Suite 1039, 3-2932 Kamikodanaka, Kawasaki, Kanagawa, JAPAN, Japan |
| KITAMURA, Toru RESIGNED | Director | 27 Jun 2000 | 01 Apr 2002 | | March 1949 | 4-3441-7 Higashi-Tamagawagakuen, Machida, Tokyo, FOREIGN, Japan |
| KOIKE, Izumi RESIGNED | Director | 31 Mar 2005 | 01 Sep 2006 | | July 1955 | 1-16-19, Seijo 1-Chome,, Setagaya-Ku., Tokyo, FOREIGN, Japan |
| KONDO, Yasunori RESIGNED | Director | 23 Aug 2011 | 03 May 2013 | Japan | September 1965 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| LACEY, Peter Geofrey RESIGNED | Director | 15 Mar 2002 | 30 Jun 2014 | United Kingdom | February 1964 | Homestead, The Homestead Hilton Grange, Bramhope, Leeds, West Yorkshire, LS16 9LE |
| MASUMOTO, Hiroshi RESIGNED | Director | 06 Nov 1992 | 26 Sep 1995 | | August 1959 | 43 Howcroft Crescent, London, N3 1PA |
| MATSUO, Minehide RESIGNED | Director | 20 Dec 2001 | 31 Mar 2005 | | April 1965 | 26 Upfield, Croydon, Surrey, CR0 5DQ |
| MATSUURA, Hideo RESIGNED | Director | | 06 Nov 1992 | | May 1940 | 93 Canfield Gardens, London, NW6 3EA |
| MURATA, Shinichi RESIGNED | Director | 01 Sep 2006 | 21 Dec 2007 | | April 1956 | 603 Ike Bukuro, Naka-Ku, Yokahama, Japan |
| MURATA, Shinichi RESIGNED | Director | 20 Oct 1994 | 11 Mar 1998 | | April 1956 | Room 71, 2 Hyde Park Square, London, W2 |
| NAKAJIMA, Toru RESIGNED | Director | | 20 Oct 1994 | | October 1954 | 63 Chester Drive, North Harrow, Harrow, Middlesex, HA2 7PX |
| NAKANO, Masatoshi RESIGNED | Director | 28 Oct 2008 | 20 May 2009 | | April 1966 | 13-2-101, Seijo 5 Chrome, Setagaya-Ku Tokyo, Tokyo, 157-0066, Japan |
| OTA, Akira RESIGNED | Director | 20 May 2009 | 03 May 2013 | England | June 1972 | Chelsea Cloisters Room 901, Sloane Avenue, London, SW3 3DW |
| SAKURAI, Ryuichi RESIGNED | Director | 07 Jun 2001 | 10 Aug 2005 | | September 1959 | 15, 2 Hyde Park Square, London, W1 |
| SAKURAI, Ryuichi RESIGNED | Director | 26 Sep 1995 | 10 Sep 1997 | | September 1959 | 63 West End Lane, Pinner, Middlesex, HA5 1AF |
| SASAMORI, Makoto RESIGNED | Director | 10 Sep 1997 | 15 Feb 2001 | | April 1953 | 10 Witherby Close, Croydon, Surrey, CR0 5SU |
| SAWADA, Shinjiro RESIGNED | Director | 01 Apr 2002 | 01 Jul 2004 | | September 1954 | Eda-Cho 297-3-414, Aoba-Ku, Kanagawa-Ken, Japan |
| SHIMADA, Atsushi RESIGNED | Director | 01 Jul 2004 | 31 Mar 2005 | | January 1955 | 3 29 17 Denenchofu, Ota Ku, Tokyo, FOREIGN, Japan |
| SHIRAI, Takuma RESIGNED | Director | 10 Aug 2005 | 23 Aug 2011 | England | November 1963 | 19 Beaufort Gardens, London, NW4 3QN |
| SONOBE, Satoshi RESIGNED | Director | 15 Feb 2001 | 31 Mar 2005 | | May 1956 | 31 Atwood Avenue, Richmond, Surrey, TW9 4HF |
| SPINK, Bryan RESIGNED | Director | | 09 Nov 2001 | | April 1936 | Intake Lodge Yearsley, Brandsby, York, North Yorkshire, YO6 4SW |
| SUN, Zhen RESIGNED | Director | 03 May 2013 | 28 Sep 2020 | China | March 1966 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| SUN, Zhen RESIGNED | Director | 03 May 2013 | 01 Jul 2014 | United Kingdom | March 1966 | Aquatite House, Mabgate, Leeds, LS9 7DR |
| TAKAHAMA, Atsushi RESIGNED | Director | 31 Mar 2005 | 29 Oct 2009 | | December 1963 | Citadines Apartment Barbican, 7-21 Goswell Road, London, EC1M 7AH |
| TSUKADA, Takeishi RESIGNED | Director | 11 Mar 1998 | 07 Jun 2001 | | March 1949 | 24 Chipstead Street, Fulham, London, SW6 3SS |
| UCHIDA, Munetoshi RESIGNED | Director | 10 Sep 1997 | 27 Jun 2000 | | September 1946 | 1-20-2 Nariya Higashi, Suginami, Tokyo, 166, Japan |
| WASHIKITA, Kenichiro RESIGNED | Director | 21 Dec 2007 | 28 Oct 2008 | | January 1964 | 6-26-30 Kinuta, Setagaya, Tokyo, FOREIGN, Japan |
| WOODHEAD, John RESIGNED | Director | 15 Mar 2002 | 28 Mar 2008 | | January 1954 | 10 Dalesway, Guiseley, Leeds, West Yorkshire, LS20 8JN |