Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 19 March 2027
- Last conf. stmt
- 5 March 2026
Rio Tinto Secretariat Limited
- Incorporated
- 4 May 2017 (9 years)
- Industry
- Dormant Company (99999)
- Directors
- George MillsHayley Alice Elizabeth Clifton
- Owned by
- Accounts type
- Dormant
- Region
- Greater London
- Address
- 6 St. James's SquareLondonSW1Y 4AD
Officers 4 active
Officer details are public data from the Companies House register.
Director · Appointed 1 June 2026
British
Born March 1974 (52)
Mills, George
Director · Appointed 12 November 2025
British
Born June 1997 (29)
Clifton, Hayley Alice Elizabeth
Director · Appointed 11 November 2019
British
Born October 1984 (42)
Director · Appointed 11 November 2019
British
Born April 1981 (45)
Officer history (7 former)
1 June 2026
26 May 2026
12 November 2025
Appointed Mills, George as Director
24 July 2025
10 January 2024
1 October 2023
11 November 2019
Appointed Clifton, Hayley Alice Elizabeth as Director
11 November 2019
15 March 2019
24 January 2019
30 November 2018
30 November 2018
1 March 2018
30 September 2017
4 May 2017
4 May 2017
4 May 2017
4 May 2017
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 4 May 2017
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Limited Company
Reg. no. 00460473
Group structure 38 shown
Ownership group derived from the Companies House PSC register
Rio Tinto European Holdings Limited Owns 75–100% of shares
Rio Tinto Canada Finance Limited Owns 75–100% of shares
Rio Tinto London Limited Owns 75–100% of shares
Rio Tinto Medical Plan Trustees Limited Owns 75–100% of shares
Rio Tinto Nominees Limited Owns 75–100% of shares
Rio Tinto Secretariat Limited This company Owns 75–100% of shares
Rio Tinto Metals Limited Owns 75–100% of shares
Rio Tinto Mining and Exploration Limited Owns 75–100% of shares
Thos W Ward Limited Owns 75–100% of shares
Rio Tinto Minerals Development Limited Owns 75–100% of shares
Rio Tinto Western Holdings Limited Owns 75–100% of shares
LA Granja UK Holdings Limited Owns 25–50% of shares
Nuton Holdings Limited Owns 75–100% of shares
Rio Tinto BM Limited Owns 75–100% of shares
Rio Tinto Minerals Limited Owns 75–100% of shares
Rio Tinto International Holdings Limited Owns 75–100% of shares
Anglesey Aluminium Metal Limited Owns 75–100% of shares
Borax Europe Limited Owns 75–100% of shares
British Alcan Aluminium Limited Owns 75–100% of shares
Alcan Chemicals Limited Owns 75–100% of shares
Alcan Farms Limited Owns 75–100% of shares
Tbac Limited Owns 75–100% of shares
Iea Environmental Projects Limited Owns 75–100% of shares
Ioc Sales Limited Owns 75–100% of shares
Lawson Mardon Flexible Limited Owns 75–100% of shares
Lawson Mardon Smith Brothers Ltd. Owns 75–100% of shares
Pechiney Aviatube Limited Owns 75–100% of shares
Rio Tinto Bahia Holdings Limited Owns 75–100% of shares
Rio Tinto Bauxite Atlantic Limited Owns 75–100% of shares
Rio Tinto Copper Holdings Limited Owns 75–100% of shares
Rio Tinto Copper Limited Owns 75–100% of shares
Rio Tinto Energy Limited Owns 75–100% of shares
Rio Tinto Finance (Usa) PLC Owns 75–100% of shares
Rio Tinto Finance PLC Owns 75–100% of shares
Rio Tinto Indonesian Holdings Limited Owns 75–100% of shares
THR Copper Limited Owns 75–100% of shares
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 2 July 2026 | Accounts for a dormant company | 31 December 2025 | ||
| 2 June 2026 | Appointment of a director | |||
| 26 May 2026 | Termination of appointment of a director | |||
| 12 March 2026 | Confirmation statement with no updates | 5 March 2026 | ||
| 17 November 2025 | Appointment of a director |
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