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

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.