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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

Tanna, Catherine Leigh

    Related profiles found in government register
  • Tanna, Catherine Leigh
    Australia oil company executive born in November 1961

    Registered addresses and corresponding companies
    • icon of address 146 Riouwstraat, Den Haag, 2585hv, The Netherlands

      IIF 1
    • icon of address 3 Nassim Road \04-05, Nassim Jade, Singapore, 258371

      IIF 2
  • Tanna, Catherine Leigh
    Australian company director born in November 1961

    Resident in Australia

    Registered addresses and corresponding companies
    • icon of address 171, Collins Street, Melbourne, 3000, Australia

      IIF 3
child relation
Offspring entities and appointments
Active 1
  • 1
    BHP LIMITED - 2000-11-02
    BROKEN HILL PROPRIETARY COMPANY - 2000-11-01
    BHP BILLITON (AUS) LIMITED - 2018-11-19
    BROKEN HILL PROPRIETARY COMPANY LIMITED - 2001-11-16
    BHP BILLITON LIMITED - 2002-03-05
    icon of address 171 Collins Street, Melbourne, Victoria 3000, Australia
    Active Corporate (10 parents)
    Officer
    icon of calendar 2022-04-04 ~ now
    IIF 3 - Director → ME
Ceased 2

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