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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

Ms Helen Christine Day

child relation
Offspring entities and appointments
Active 6
  • 1
    840 Ibis Court Centre Park, Warrington, England
    Dissolved Corporate (1 parent)
    Officer
    2019-02-21 ~ dissolved
    IIF 3 - Director → ME
    Person with significant control
    2019-02-21 ~ dissolved
    IIF 2 - Ownership of shares – 75% or moreOE
    IIF 2 - Ownership of voting rights - 75% or moreOE
  • 2
    6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2014-12-12 ~ dissolved
    IIF 27 - Secretary → ME
  • 3
    RIO TINTO EXPLORATION DRC ORIENTAL LIMITED - 2010-06-10
    RIO TINTO COPPER STRATEGIC ALLIANCE LIMITED - 2009-06-23
    6 St James's Square, London
    Dissolved Corporate (3 parents)
    Officer
    2014-12-12 ~ dissolved
    IIF 45 - Secretary → ME
  • 4
    SELTRUST INVESTMENTS,LIMITED - 1989-07-21
    6 St James's Square, London
    Dissolved Corporate (3 parents)
    Officer
    2014-12-12 ~ dissolved
    IIF 30 - Secretary → ME
  • 5
    6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2014-12-12 ~ dissolved
    IIF 13 - Secretary → ME
  • 6
    6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    2014-12-12 ~ dissolved
    IIF 18 - Secretary → ME
Ceased 38
  • 1
    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
    2014-12-12 ~ 2017-05-05
    IIF 11 - Secretary → ME
  • 2
    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
    2014-12-12 ~ 2017-05-05
    IIF 42 - Secretary → ME
  • 3
    R.T.Z. AUSTRALIA HOLDINGS LIMITED - 1997-06-23
    6 St James's Square, London
    Active Corporate (5 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 43 - Secretary → ME
  • 4
    ORLINPOINT LIMITED - 2012-03-20
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 29 - Secretary → ME
  • 5
    SUMMERWAND LIMITED - 2004-02-03
    6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 9 - Secretary → ME
  • 6
    SUMMERVANISH LIMITED - 2004-01-21
    6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 8 - Secretary → ME
  • 7
    6 St James's Square, London
    Dissolved Corporate (5 parents)
    Officer
    2013-04-24 ~ 2017-05-05
    IIF 37 - Secretary → ME
  • 8
    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
    2014-12-12 ~ 2017-05-05
    IIF 38 - Secretary → ME
  • 9
    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
    2014-12-12 ~ 2017-05-05
    IIF 25 - Secretary → ME
  • 10
    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
    2014-12-12 ~ 2017-05-05
    IIF 33 - Secretary → ME
  • 11
    RIO TINTO (COMMERCIAL PAPER) PLC - 2012-03-05
    6 St James's Square, London
    Active Corporate (6 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 21 - Secretary → ME
  • 12
    RTZ FINANCE PLC - 1997-06-12
    6 St James's Square, London
    Active Corporate (6 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 10 - Secretary → ME
  • 13
    RTZ INDONESIAN HOLDINGS LIMITED - 1997-06-23
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 15 - Secretary → ME
  • 14
    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
    2014-12-12 ~ 2017-05-05
    IIF 22 - Secretary → ME
  • 15
    QMP METAL POWDERS LIMITED - 2006-07-11
    BROADSTAND LIMITED - 1993-11-08
    6 St James's Square, London, United Kingdom
    Dissolved Corporate (5 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 28 - Secretary → ME
  • 16
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 16 - Secretary → ME
  • 17
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 46 - Secretary → ME
  • 18
    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
    2014-12-12 ~ 2017-05-05
    IIF 47 - Secretary → ME
  • 19
    RIO TINTO RESOURCE DEVELOPMENT LIMITED - 1999-11-18
    RTZ RESOURCE DEVELOPMENT LIMITED - 1997-06-02
    6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 44 - Secretary → ME
  • 20
    R.T.Z. MEDICAL PLAN TRUSTEES LIMITED - 1997-09-01
    HACKREMCO (NO.1161) LIMITED - 1996-09-10 02523945
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2008-06-02 ~ 2017-05-05
    IIF 6 - Secretary → ME
  • 21
    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
    2014-12-12 ~ 2017-05-05
    IIF 35 - Secretary → ME
  • 22
    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
    2014-12-12 ~ 2017-05-05
    IIF 39 - Secretary → ME
  • 23
    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
    2014-12-12 ~ 2017-05-05
    IIF 41 - Secretary → ME
  • 24
    R.T.Z. NOMINEES LIMITED - 1997-06-05
    6 St James's Square, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    2012-02-15 ~ 2017-05-05
    IIF 26 - Secretary → ME
  • 25
    6 St James's Square, London
    Active Corporate (5 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 23 - Secretary → ME
  • 26
    R.T.Z.OVERSEAS HOLDINGS LIMITED - 1997-06-12
    6 St James's Square, London
    Active Corporate (5 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 34 - Secretary → ME
  • 27
    6 St James's Square, London
    Dissolved Corporate (3 parents)
    Officer
    2010-06-23 ~ 2011-01-27
    IIF 7 - Secretary → ME
    2012-10-11 ~ 2017-05-05
    IIF 31 - Secretary → ME
  • 28
    R.T.Z. PENSION FUND TRUSTEES LIMITED - 1997-06-12
    6 St James's Square, London
    Active Corporate (7 parents)
    Officer
    2008-09-08 ~ 2017-05-05
    IIF 5 - Secretary → ME
    Person with significant control
    2016-07-05 ~ 2018-12-31
    IIF 1 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 29
    R.T.Z. PENSION INVESTMENTS LIMITED - 1997-06-25
    6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 24 - Secretary → ME
  • 30
    FRONTIER GREEN RESOURCES LIMITED - 2010-08-20
    6 St James's Square, London
    Active Corporate (4 parents, 2 offsprings)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 19 - Secretary → ME
  • 31
    6 St James's Square, London
    Active Corporate (6 parents, 1 offspring)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 14 - Secretary → ME
  • 32
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 20 - Secretary → ME
  • 33
    RIO TINTO TECHNOLOGY RESOURCES UK LIMITED - 2012-10-29
    6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 17 - Secretary → ME
  • 34
    RIO TINTO MINERAL SERVICES LIMITED - 2011-10-03 13807147
    RTZ MINERAL SERVICES LIMITED - 1997-06-09
    HACKREMCO (NO.609) LIMITED - 1990-10-18 03230372
    6 St James's Square, London
    Dissolved Corporate (5 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 12 - Secretary → ME
  • 35
    RIO TINTO URANIUM LIMITED - 2011-10-03 02523945
    6 St James's Square, London
    Dissolved Corporate (6 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 40 - Secretary → ME
  • 36
    RIO TINTO KALI LIMITED - 2005-11-02
    6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    2014-12-12 ~ 2017-05-05
    IIF 32 - Secretary → ME
  • 37
    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
    2014-12-12 ~ 2017-05-05
    IIF 36 - Secretary → ME
  • 38
    C/o Aspire Block And Estate Management Limited The Wenta Business Centre, Colne Way, Watford, England
    Active Corporate (3 parents)
    Equity (Company account)
    6 GBP2024-03-24
    Officer
    2002-10-14 ~ 2003-12-12
    IIF 4 - Director → ME

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