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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers who have significant controls over the individuals in focus are always inapplicable. The offspring entities and appointments are those entities that the individuals in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Ratnage, Ian Clay

child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
Ceased 35
  • 1
    PEABODY AUSTRALIA LIMITED - 2001-02-08
    RICHARD COSTAIN (HOLDINGS) LIMITED - 1993-05-14
    6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2001-01-29 ~ 2008-04-25
    IIF 8 - Director → ME
  • 2
    RIO TINTO NAMIBIAN HOLDINGS LIMITED - 2019-12-13
    RTZ NAMIBIAN HOLDINGS LIMITED - 1997-06-02
    Unit 794 Salisbury House 29 Finsbury Circus, London, United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    Retained earnings (accumulated losses)
    16,567 USD2024-12-30
    Officer
    1994-12-05 ~ 2008-04-25
    IIF 27 - Director → ME
  • 3
    RIO TINTO TALC LIMITED - 2011-08-31
    RTZ TALC LIMITED - 1997-06-25
    BORAX & CHEMICALS LIMITED - 1994-01-25
    Par Moor Centre, Par Moor Road, Par, Cornwall
    Active Corporate (3 parents, 1 offspring)
    Equity (Company account)
    3,000 GBP2024-12-31
    Officer
    2002-01-24 ~ 2008-04-25
    IIF 26 - Director → ME
  • 4
    RIO TINTO PERU LIMITED - 2023-08-25
    4th Floor The Charlotte Building, 17 Gresse Street, London, United Kingdom
    Active Corporate (7 parents, 1 offspring)
    Officer
    2005-12-15 ~ 2008-04-25
    IIF 25 - Director → ME
  • 5
    2 Eastbourne Terrace, London
    Dissolved Corporate (3 parents)
    Officer
    2007-07-02 ~ 2008-04-25
    IIF 3 - Director → ME
  • 6
    R.T.Z. AUSTRALIA HOLDINGS LIMITED - 1997-06-23
    6 St James's Square, London
    Active Corporate (5 parents)
    Officer
    1993-12-20 ~ 2008-04-25
    IIF 6 - Director → ME
  • 7
    ORLINPOINT LIMITED - 2012-03-20
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    1999-07-13 ~ 2008-04-25
    IIF 18 - Director → ME
  • 8
    6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2005-04-01 ~ 2008-04-25
    IIF 21 - Director → ME
  • 9
    6 St James's Square, London
    Dissolved Corporate (5 parents)
    Officer
    2005-03-29 ~ 2006-08-23
    IIF 17 - Director → ME
  • 10
    ADAMARA LIMITED - 2013-07-05
    RIO TINTO ENERGY LIMITED - 2013-05-29
    JAKHAU HOLDINGS LIMITED - 2006-11-28
    6 St James's Square, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    2006-11-30 ~ 2008-04-25
    IIF 9 - Director → ME
  • 11
    RTZ EUROPEAN HOLDINGS LIMITED - 1997-06-12
    R.T.Z.BRITAIN FINANCE LIMITED - 1987-05-06
    6 St James's Square, London
    Active Corporate (6 parents, 8 offsprings)
    Officer
    1993-12-21 ~ 2008-04-25
    IIF 23 - Director → ME
  • 12
    RIO TINTO FINANCE HOLDINGS LIMITED - 2013-08-20
    RIO TINTO CANADIAN HOLDINGS LIMITED - 2003-04-02
    R.T.Z. CANADIAN HOLDINGS LIMITED - 1997-06-23
    6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    1993-12-20 ~ 2008-04-25
    IIF 28 - Director → ME
  • 13
    RIO TINTO (COMMERCIAL PAPER) PLC - 2012-03-05
    6 St James's Square, London
    Active Corporate (6 parents)
    Officer
    2007-06-20 ~ 2008-04-25
    IIF 14 - Director → ME
  • 14
    RTZ FINANCE PLC - 1997-06-12
    6 St James's Square, London
    Active Corporate (6 parents)
    Officer
    1993-10-29 ~ 2008-04-25
    IIF 22 - Director → ME
  • 15
    RTZ INDONESIAN HOLDINGS LIMITED - 1997-06-23
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    1995-07-10 ~ 2006-09-27
    IIF 32 - Director → ME
  • 16
    R.T.Z. INTERNATIONAL HOLDINGS LIMITED - 1997-06-12
    BARRIER CORPORATION LIMITED (THE) - 1978-12-31
    6 St James's Square, London, United Kingdom
    Active Corporate (6 parents, 31 offsprings)
    Officer
    1993-12-22 ~ 2008-04-25
    IIF 12 - Director → ME
  • 17
    SELTRUST INVESTMENTS,LIMITED - 1989-07-21
    6 St James's Square, London
    Dissolved Corporate (3 parents)
    Officer
    2001-07-02 ~ 2008-04-25
    IIF 16 - Director → ME
  • 18
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2005-08-18 ~ 2008-04-25
    IIF 7 - Director → ME
  • 19
    RTZ LIMITED - 1997-05-30 08571728
    R.T.Z.SERVICES LIMITED - 1986-01-01 08571728
    6 St James's Square, London, United Kingdom
    Active Corporate (6 parents, 4 offsprings)
    Officer
    1993-12-21 ~ 2008-04-25
    IIF 35 - Director → ME
  • 20
    R.T.Z. METALS LIMITED - 1997-06-12
    R.T.Z. BRISTOL LIMITED - 1983-12-01
    IMPERIAL SMELTING CORPORATION(N.S.C.)LIMITED - 1981-12-31
    6 St James's Square, London
    Active Corporate (5 parents, 3 offsprings)
    Officer
    1993-12-10 ~ 2008-04-25
    IIF 19 - Director → ME
  • 21
    BP MINERALS DEVELOPMENT LIMITED - 1989-07-12
    BP MINERALS INTERNATIONAL LIMITED - 1988-07-07
    SELECTION TRUST LIMITED - 1982-08-16
    6 St James's Square, London
    Active Corporate (5 parents, 1 offspring)
    Officer
    1994-03-31 ~ 2008-04-25
    IIF 33 - Director → ME
  • 22
    RTZ MINING AND EXPLORATION LIMITED - 1997-06-25
    DELABOLE SLATE LIMITED - 1988-10-14
    PERSKIP LIMITED - 1981-12-31
    6 St James's Square, London
    Active Corporate (6 parents)
    Officer
    1993-12-15 ~ 2008-04-25
    IIF 20 - Director → ME
  • 23
    R.T.Z.OVERSEAS HOLDINGS LIMITED - 1997-06-12
    6 St James's Square, London
    Active Corporate (5 parents)
    Officer
    1993-12-20 ~ 2008-04-25
    IIF 34 - Director → ME
  • 24
    R.T.Z. PENSION FUND TRUSTEES LIMITED - 1997-06-12
    6 St James's Square, London
    Active Corporate (7 parents)
    Officer
    2014-12-01 ~ 2019-11-30
    IIF 1 - Director → ME
  • 25
    6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2004-04-26 ~ 2008-04-25
    IIF 11 - Director → ME
  • 26
    6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2004-11-24 ~ 2008-04-25
    IIF 4 - Director → ME
  • 27
    FRONTIER GREEN RESOURCES LIMITED - 2010-08-20
    6 St James's Square, London
    Active Corporate (4 parents, 2 offsprings)
    Officer
    2007-11-22 ~ 2008-04-25
    IIF 15 - Director → ME
  • 28
    6 St James's Square, London
    Active Corporate (6 parents, 1 offspring)
    Officer
    1999-01-21 ~ 2008-04-25
    IIF 31 - Director → ME
  • 29
    RIO TINTO URANIUM LIMITED - 2011-10-03 02523945
    6 St James's Square, London
    Dissolved Corporate (6 parents)
    Officer
    2005-08-30 ~ 2008-04-25
    IIF 10 - Director → ME
  • 30
    RIO TINTO KALI LIMITED - 2005-11-02
    6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    2005-08-08 ~ 2008-04-25
    IIF 5 - Director → ME
  • 31
    RTZ WESTERN HOLDINGS LIMITED - 1997-06-12
    R.T.Z. UNITED KINGDOM HOLDINGS LIMITED - 1990-11-30
    R.T.Z. INVESTMENTS LIMITED - 1978-12-31
    6 St James's Square, London, United Kingdom
    Active Corporate (5 parents, 4 offsprings)
    Officer
    1994-01-26 ~ 2008-04-25
    IIF 2 - Director → ME
  • 32
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2007-12-18 ~ 2008-04-25
    IIF 29 - Director → ME
  • 33
    2 Eastbourne Terrace, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2007-12-18 ~ 2008-04-25
    IIF 13 - Director → ME
  • 34
    6 St James's Square, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    2007-11-29 ~ 2008-04-25
    IIF 30 - Director → ME
  • 35
    25 Farringdon Street, London
    Dissolved Corporate (4 parents)
    Officer
    2007-12-17 ~ 2008-04-25
    IIF 24 - Director → ME

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.