BNP Paribas London - Rio Tinto plc

RNS Number:0653S
BNP Paribas London
10 April 2008

DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS

WITHOUT RECOGNISED INTERMEDIARY STATUS, OR WITH RI STATUS

BUT NOT DEALING IN A CLIENT-SERVING CAPACITY

(Rule 38.5(b) of the Takeover Code)

1. KEY INFORMATION

Name of exempt principal trader BNP PARIBAS ARBITRAGE SNC

Company dealt in RIO TINTO PLC

Class of relevant security to which the Ordinary shares
dealings being disclosed relate (Note 1)

Date of dealing 09 April 2008

2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a) Interests and short positions (following dealing) in the class of
relevant security dealt in (Note 2)

Long Short

Number Number
(%) (%)

(1) Relevant securities 3,782,266 0.3793

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell

Total 3,782,266 0.3793

(b) Interests and short positions in relevant securities of the company,
other than the class dealt in (Note 2)

Class of relevant security: Long Short

Number Number
(%) (%)

(1) Relevant securities

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell

Total

(c) Rights to subscribe (Note 2)

Class of relevant security: Details

3. DEALINGS (Note 3)

(a) Purchases and sales

Buy 1350 57.73
Buy 1590 57.85
Buy 846 57.94
Buy 1096 57.96
Buy 846 57.97
Buy 400 58
Buy 85 58.04
Buy 219 58.09
Buy 97 58.43
Buy 14 58.45
Buy 305 58.46
Buy 647 58.47
Buy 228 58.48
Buy 286 58.49
Buy 326 58.5
Buy 89 58.54
Buy 153 58.59
Buy 145 58.63
Buy 398 58.68
Buy 67 58.7
Buy 400 58.79
Buy 13 58.8
Buy 489 58.81
Buy 1609 58.82
Buy 196 58.84
Buy 227 58.85
Buy 306 59.05
Buy 328 59.06
Buy 583 59.07
Buy 150 59.08
Buy 1789 59.09
Buy 371 59.1
Buy 855 59.12
Buy 269 59.13
Buy 89 59.15
Buy 71 59.16
Buy 1086 59.17
Buy 210 59.18
Buy 212 59.2
Buy 2018 59.21
Buy 369 59.22
Buy 296 59.23
Buy 928 59.24
Buy 421 59.25
Buy 508 59.26
Buy 488 59.27
Buy 265 59.28
Buy 332 59.29
Buy 999 59.3
Buy 12 59.31
Buy 134500 59.33
Buy 597 59.34
Buy 433 59.36
Buy 738 59.38
Buy 512 59.39
Buy 1328 59.4
Buy 325 59.41
Buy 89 59.42
Buy 91 59.43
Buy 193 59.44
Buy 1043 59.45
Buy 336 59.46
Buy 1559 59.49
Buy 538 59.5
Buy 1378 59.51
Buy 479 59.52
Buy 400 59.53
Buy 1166 59.55
Buy 812 59.56
Buy 249 59.57
Buy 2501 59.58
Buy 371 59.59
Buy 26 59.6
Buy 327 59.61
Buy 608 59.62
Buy 55 59.64
Buy 2279 59.65
Buy 2288 59.66
Buy 2068 59.67
Buy 2726 59.68
Buy 2368 59.69
Buy 1957 59.7
Buy 1351 59.71
Buy 167 59.79
Buy 135 59.82
Buy 135 59.85
Buy 779 59.86
Buy 151 59.88
Buy 54 59.89
Buy 2989 59.9
Buy 66 59.91
Buy 822 59.92
Buy 1077 59.95
Buy 345 59.96
Buy 2560 59.97
Buy 75 59.98
Buy 3620 60
Buy 1488 60.01
Buy 608 60.02
Buy 112 60.03
Buy 2243 60.05
Buy 100 60.07
Buy 500 60.08
Buy 66 60.09
Buy 196 60.13
Buy 923 60.16
Buy 344 60.17
Buy 66 60.18
Buy 1832 60.19
Buy 653 60.23
Buy 135 60.3
Buy 672 60.32
Buy 13 60.34
Buy 92 60.35
Buy 370 60.37
Buy 1637 60.39
Buy 697 60.4
Buy 120 60.42
Buy 804 60.43
Buy 1231 60.44
Buy 823 60.45
Buy 838 60.5
Buy 126 60.51
Buy 420 60.53
Buy 462 60.54
Buy 59 60.55
Buy 722 60.56
Buy 531 60.61
Total 222625

Sell 514 57.83
Sell 236 57.84
Sell 50 57.85
Sell 472 57.88
Sell 632 57.89
Sell 463 57.94
Sell 1059 57.95
Sell 372 57.96
Sell 1633 57.98
Sell 687 58
Sell 220 58.02
Sell 315 58.03
Sell 400 58.05
Sell 120 58.09
Sell 345 58.11
Sell 166 58.18
Sell 844 58.19
Sell 473 58.2
Sell 650 58.21
Sell 510 58.22
Sell 287 58.25
Sell 485 58.28
Sell 118 58.3
Sell 341 58.32
Sell 638 58.34
Sell 26 58.35
Sell 413 58.4
Sell 234 58.42
Sell 1603 58.47
Sell 750 58.48
Sell 972 58.5
Sell 88 58.52
Sell 1026 58.53
Sell 858 58.54
Sell 349 58.55
Sell 48 58.56
Sell 414 58.59
Sell 369 58.61
Sell 381 58.64
Sell 231 58.65
Sell 180 58.66
Sell 170 58.7
Sell 188 58.73
Sell 337 58.8
Sell 140 58.81
Sell 331 58.82
Sell 510 58.83
Sell 390 58.84
Sell 304 59.06
Sell 2769 59.09
Sell 2878 59.1
Sell 3622 59.11
Sell 589 59.12
Sell 372 59.13
Sell 268 59.14
Sell 763 59.17
Sell 660 59.2
Sell 141 59.21
Sell 193 59.22
Sell 9 59.23
Sell 45 59.24
Sell 65 59.26
Sell 865 59.27
Sell 443 59.28
Sell 126 59.29
Sell 905 59.32
Sell 464 59.33
Sell 191 59.37
Sell 202 59.38
Sell 55 59.39
Sell 89 59.45
Sell 22 59.5
Sell 85 59.51
Sell 1031 59.53
Sell 579 59.54
Sell 436 59.6
Sell 19 59.65
Sell 67 59.7
Sell 240 59.85
Sell 2500 59.97
Sell 20825 60
Sell 312 60.03
Sell 127 60.16
Sell 108 60.23
Sell 280 60.24
Sell 313 60.25
Sell 533 60.27
Sell 486 60.32
Sell 764 60.39
Sell 666 60.47
Sell 126 60.55
Sell 59 60.56
Total 67634

(b) Derivatives transactions (other than options)

Product name, Long/short (Note 5) Number of securities (Note 6) Price per unit (Note 4)

e.g. CFD

(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

Product name, Writing, selling, Number of securities Exercise Type, e.g. Expiry Option money
purchasing, to which the option American,
e.g. call option varying etc. relates (Note 6) price European etc. date paid/received per
unit (Note 4)

(ii) Exercising

Product name, e.g. call option Number of securities Exercise price per unit (Note 4)

(d) Other dealings (including new securities) (Note 3)

Nature of transaction (Note 7) Details Price per unit (if applicable) (Note 4)

4. OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating
to the voting rights of any relevant securities under any option referred to on this form or relating to the voting
rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is
referenced. If none, this should be stated.

None

Is a Supplemental Form 38.5(b) attached? (Note 8) YES/NO

Date of disclosure 10 April 2008

Contact name Darren Clarke

Telephone number 020 7595 4821

Name of offeree/offeror with which connected BHP Billiton
Nature of connection (Note 9) Advisor

Notes

The Notes on Form 38.5(b) can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk

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

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