Holding(s) in Company

TR-1: Notifications of Major Interests in Shares

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Rio Tinto plc

2. Reason for notification (yes/no)

An acquisition or disposal of voting rights

X

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

Other (please specify):______________

3. Full name of person(s) subject to notification obligation:

The Capital Group Companies, Inc.

4. Full name of shareholder(s) (if different from 3):

See item 9

5. Date of transaction (and date on which the threshold is crossed or reached if different):

17 October 2013

6. Date on which issuer notified:

18 October 2013

7. Threshold(s) that is/are crossed or reached:

Above 3%

8: Notified Details

A: Voting rights attached to shares

Class/type of shares

If possible use ISIN code

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of shares

Number of voting rights

Number of shares

Number of voting rights

Percentage of voting rights

Direct

Indirect

Direct

Indirect

Ordinary Shares (GB0007188757)

42,079,976

42,079,976

42,394,358

3.00%

ADRs (US7672041008)

6,391

6,391

6,991

0.00%

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ conversion period/date

No. of voting rights that may be acquired (if the instrument exercised/converted)

Percentage of voting rights

Total (A+B)

Number of voting rights

Percentage of voting rights

42,401,349

3.00%

9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively held, if applicable:

Number of  Percent of

Shares  Outstanding

The Capital Group Companies, Inc. ("CG") holdings 42,401,349 3.00%

Holdings by CG Management Companies and Funds:

• Capital Guardian Trust Company 1,774,200  0.126%

• Capital International Limited  455,618  0.032%

• Capital International SÁrl 215,285  0.015%

• Capital International, Inc. 131,655  0.009%

• Capital Research and Management Company 39,824,591  2.819%

Proxy Voting:

10. Name of proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14 Contact name:

Vaughn Walton

15. Contact telephone name:

020 7781 1345