Company and country | | Principal | | Class of | | Proportion | | Group | |
of incorporation | | activities | | shares held | | of class | | interest | |
| | | | | | held | | | |
| | | | | | % | | % | |
Australia | | | | | | | | | |
Australian Coal Holdings Pty. Limited | | Holding company | | ‘A’ Class Ordinary shares | | 100 | | 100 | |
| | | | Ordinary shares | | 100 | | 100 | |
Capricorn Diamonds Limited | | Holding company | | Class A shares | | 100 | | 100 | |
| | | | Class B shares | | 100 | | 100 | |
Comalco Aluminium Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
Hamersley Holdings Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
Kelian Pty. Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
| | | | B Class shares | | 100 | | 100 | |
North IOC Holdings Pty. Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
North Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
Pacific Aluminium Pty. Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
Peko-Wallsend Ltd | | Holding company | | Ordinary shares | | 100 | | 100 | |
Rio Tinto (Commercial Paper) Limited | | Finance company | | Ordinary shares | | 100 | | 100 | |
Rio Tinto Finance Limited | | Finance company | | Ordinary shares | | 100 | | 100 | |
Rio Tinto Finance (USA) Limited | | Finance company | | Ordinary shares | | 100 | | 100 | |
Rio Tinto Investments One Pty Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
Rio Tinto Investments Two Pty Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
Tinto Holdings Australia Pty. Limited | | Holding company | | Ordinary shares | | 100 | | 100 | |
| | | | A Class shares | | 100 | | 100 | |
| | | | | | | | | |
Bermuda | | | | | | | | | |
North Finance (Bermuda) Limited | | Finance company | | Ordinary shares of USD 1.00 each | | 100 | | 100 | |
North IOC (Bermuda) Holdings Limited | | Holding company | | Ordinary shares of USD 1.00 each | | 100 | | 100 | |
North IOC (Bermuda) Limited | | Holding company | | Ordinary shares of USD 1.00 each | | 100 | | 100 | |
| | | | | | | | | |
Canada | | | | | | | | | |
Rio Tinto Canada Inc | | Holding company | | Class B shares no par value | | 100 | | 100 | |
| | | | Class C shares no par value | | 100 | | 100 | |
| | | | Class D shares no par value | | 100 | | 100 | |
Namibia | | | | | | | | | |
Skeleton Coast Diamonds Limited | | Holding company | | Shares of NAD 2.00 each | | 100 | | 100 | |
| | | | | | | | | |
Netherlands | | | | | | | | | |
Rio Tinto Eastern Investments BV | | Holding company | | Shares of EUR 454.00 each | | 100 | | 100 | |
Rio Tinto Holdings BV | | Holding company | | Shares of EUR 454.00 each | | 100 | | 100 | |
| | | | | | | | | |
South Africa | | | | | | | | | |
Palabora Holdings Limited | | Holding company | | Shares of ZAR 1.00 each | | 57.73 | | 57.73 | |
| | | | | | | | | |
United Kingdom | | | | | | | | | |
Rio Tinto Aluminium Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Australian Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Brazilian Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Brazilian Investments Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Escondida Investments Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Finance Holdings Limited | | Finance company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
| | | | Preference shares of AUD 100.00 each | | 100 | | 100 | |
Rio Tinto European Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Finance plc | | Finance company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
| | | | Ordinary shares of USD 1.00 each | | 100 | | 100 | |
Rio Tinto Indonesia Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto International Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Investments Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Lihir Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Metals Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Minerals Development Limited | | Holding company | | Ordinary shares of GBP 0.25 each | | 100 | | 100 | |
Rio Tinto Namibian Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Overseas Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Pacific Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
| | | | Preference shares of AUD 1.00 each | | 100 | | 100 | |
Rio Tinto South East Asia Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Talc Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Two Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Rio Tinto Western Holdings Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Tinto Channel Islands Limited | | Holding company | | Ordinary shares of USD 1.00 each | | 100 | | 100 | |
Tinto Holdings Jersey Limited | | Holding company | | Ordinary shares of USD 1.00 each | | 100 | | 100 | |
Tinto Investments Europe Limited | | Holding company | | Ordinary shares of GBP 1.00 each | | 100 | | 100 | |
Tinto Jersey Limited | | Holding company | | Ordinary shares of USD 1.00 each | | 100 | | 100 | |
| | | | | | | | | |
United States of America | | | | | | | | | |
Kennecott Energy and Coal Company | | Holding company | | Common shares of USD 0.01 | | 100 | | 100 | |
Kennecott Holdings Corporation | | Holding company | | Common shares of USD 0.01 | | 100 | | 100 | |
Kennecott Land Company | | Holding company | | Common shares of USD 0.01 | | 100 | | 100 | |
Kennecott Minerals Holdings Company | | Holding company | | Common shares of USD 0.01 | | 100 | | 100 | |
Kennecott Utah Copper Corporation | | Holding company | | Common shares of USD 0.01 | | 100 | | 100 | |
Rio Tinto America Holdings Inc | | Holding company | | Common shares of USD 0.01 | | 100 | | 100 | |
Rio Tinto America Inc | | Holding company | | Common shares of USD 100.00 | | 100 | | 100 | |
| | | | | | | | | |
Zimbabwe | | | | | | | | | |
Rio Zimbabwe Holdings Limited | | Holding company | | Shares of ZAD 1.00 | | 100 | | 100 | |
Tinto Holdings Zimbabwe Limited | | Holding company | | Shares of ZAD 1.00 | | 100 | | 100 | |