Blocklisting Interim Review

Rio Tinto PLC
22 November 2005

                                   SCHEDULE 5

                        BLOCKLISTING SIX MONTHLY RETURN



1. Name of company

Rio Tinto plc


2. Name of scheme

Rio Tinto Share Option Plan 1998


3. Period of return:

From      22 April 2005                              To     21 October 2005


4. Number and class of shares(s) (amount of stock / debt security) not issued
under scheme

1,205,530


5. Number of shares issued / allotted under scheme during period:

994,354


6. Balance under scheme not yet issued / allotted at end of period

211,176


7. Number and class of share(s) (amount of stock / debt securities) originally
listed and the date of admission;

525,000 Ordinary shares of 10p - Various dates


Please confirm total number of shares in issue at the end of the period in order
for us to update our records

1,069,800,854 (excluding shares held as Treasury shares)


Contact for queries


Name             Sarah Morley

Address          Rio Tinto plc, 6 St James's Square, London, SW1Y 4LD

Telephone        [phone]


This material originates from the Financial Services Authority (FSA). All
copyrights relating to it are held by the FSA. Use of FSA material does not
indicate any endorsement by the FSA of its publication, or the material or views
contained within it.


                                   SCHEDULE 5

                        BLOCKLISTING SIX MONTHLY RETURN


1. Name of company

Rio Tinto plc


2. Name of scheme

Rio Tinto Share Savings Plan


3. Period of return:

From      22 April 2005                              To     21 October 2005


4. Number and class of shares(s) (amount of stock / debt security) not issued
under scheme

603,597


5. Number of shares issued / allotted under scheme during period:

85,201


6. Balance under scheme not yet issued / allotted at end of period

518,396


7. Number and class of share(s) (amount of stock / debt securities) originally
listed and the date of admission;

6,290,308 Ordinary shares of 10p - Various dates


Please confirm total number of shares in issue at the end of the period in order
for us to update our records

1,069,800,854 (excluding shares held as Treasury shares)


Contact for queries


Name             Sarah Morley

Address          Rio Tinto plc, 6 St James's Square, London, SW1Y 4LD

Telephone        [phone]


This material originates from the Financial Services Authority (FSA). All
copyrights relating to it are held by the FSA. Use of FSA material does not
indicate any endorsement by the FSA of its publication, or the material or views
contained within it.


                      This information is provided by RNS
            The company news service from the London Stock Exchange