EPT Disclosure - Rio Tinto plc

24th Sep 2008 10:18

Name of exempt principal trader	BNP PARIBAS ARBITRAGE SNC
Company dealt in	RIO TINTO PLC
Class of relevant security to which the dealings being disclosed relate(Note 1)	Ordinary shares
Date of dealing	22 September 2008

	Long	Short
	Number (%)	Number (%)
(1) Relevant securities	3,365,939 0.34%
(2) Derivatives (other than options)
(3) Options and agreements to purchase/sell
Total	3,365,939 0.34%

Class of relevant security:	Long	Short
	Number (%)	Number (%)
(1) Relevant securities
(2) Derivatives (other than options)
(3) Options and agreements to purchase/sell
Total

Class of relevant security:	Details

Purchases	Quantity	Price
	865	44.13
	80	44.05
	285	44.00
	400	43.98
	708	43.95
	295	43.94
	2967	43.93
	2222	43.92
	863	43.91
	2598	43.90
	1523	43.89
	872	43.88
	1450	43.86
	842	43.85
	2919	43.84
	1508	43.83
	127	43.82
	1023	43.81
	590	43.80
	2695	43.79
	1455	43.78
	2005	43.77
	965	43.76
	165	43.75
	84	43.73
	53	43.71
	4392	43.70
	211	43.68
	165	43.66
	274	43.62
	165	43.58
	415	43.57
	1200	43.56
	759	43.54
	165	43.53
	330	43.52
	495	43.50
	14	43.48
	115	43.47
	50	43.44
	85	43.43
	551	43.41
	495	43.40
	274	43.38
	530	43.35
	35	43.33
	500	43.32
	165	43.29
	127	43.27
	60	43.26
	5646	43.24
	165	43.24
	100	43.22
	612	43.20
	349	43.19
	597	43.18
	3218	43.17
	2356	43.15
	782	43.14
	1437	43.13
	2281	43.12
	416	43.11
	1267	43.10
	1290	43.09
	15	43.08
	492	43.07
	335	43.06
	1364	43.05
	2200	43.04
	2064	43.03
	445	43.02
	1475	43.01
	4225	43.00
	165	42.99
	439	42.98
	1069	42.97
	84214	42.96
	152	42.95
	200	42.94
	542	42.93
	2202	42.92
	1278	42.91
	1017	42.90
	1260	42.89
	65	42.88
	165	42.87
	2968	42.86
	1237	42.85
	1201	42.84
	871	42.83
	1215	42.82
	1116	42.81
	2041	42.80
	552	42.79
	337	42.78
	2175	42.77
	990	42.76
	517	42.75
	1104	42.74
	1882	42.73
	1645	42.72
	330	42.71
	2670	42.70
	3212	42.69
	1321	42.68
	1064	42.67
	488	42.66
	2139	42.65
	877	42.64
	1496	42.63
	465	42.62
	1498	42.61
	953	42.60
	362	42.58
	165	42.57
	15	42.56
	1956	42.55
	31	42.54
	1666	42.53
	1715	42.52
	165	42.51
	2201	42.50
	1578	42.49
	2375	42.48
	473	42.45
	761	42.44
	945	42.42
	1186	42.41
	33201	42.40
	460	42.39
	165	42.38
	101	42.36
	198	42.35
	133	42.34
	165	42.33
	100	42.30
	960	42.26
	165	42.18
	165	42.07
	77	42.05
	165	42.04
	85	42.00
Total:	255,128

Sales	Quantity	Price
	-150	44.17
	-183	44.16
	-65	44.15
	-470	44.05
	-80	44.04
	-1391	43.96
	-1857	43.95
	-1057	43.94
	-722	43.93
	-8563	43.91
	-340	43.90
	-185	43.89
	-8261	43.88
	-9919	43.87
	-1862	43.85
	-1578	43.84
	-2349	43.83
	-8989	43.82
	-561	43.80
	-10165	43.78
	-434	43.76
	-53	43.75
	-65	43.74
	-577	43.72
	-165	43.68
	-1028	43.65
	-402	43.64
	-165	43.62
	-568	43.61
	-165	43.60
	-205	43.59
	-309	43.58
	-862	43.57
	-150	43.56
	-246	43.55
	-165	43.54
	-85	43.53
	-495	43.52
	-890	43.50
	-211	43.49
	-330	43.46
	-165	43.43
	-165	43.40
	-330	43.39
	-181	43.37
	-11	43.35
	-346	43.34
	-240	43.33
	-127	43.32
	-57	43.31
	-1900	43.30
	-592	43.29
	-60	43.28
	-165	43.23
	-100	43.21
	-5075	43.20
	-471	43.19
	-477	43.18
	-825	43.17
	-2215	43.16
	-2039	43.15
	-1800	43.14
	-941	43.13
	-424	43.12
	-1443	43.11
	-99	43.10
	-105	43.09
	-836	43.08
	-749	43.07
	-1132	43.06
	-340	43.05
	-639	43.04
	-65	43.03
	-1416	43.02
	-1089	43.00
	-240	42.99
	-727	42.98
	-845	42.97
	-50	42.96
	-1073	42.95
	-134	42.94
	-553	42.93
	-249	42.92
	-330	42.91
	-3189	42.90
	-165	42.89
	-949	42.88
	-1641	42.86
	-889	42.85
	-293	42.84
	-751	42.83
	-14435	42.82
	-21132	42.81
	-1791	42.80
	-1387	42.79
	-3309	42.77
	-1286	42.76
	-1692	42.75
	-1311	42.74
	-1263	42.73
	-2206	42.72
	-1120	42.71
	-984	42.70
	-11231	42.69
	-2713	42.68
	-3501	42.67
	-2054	42.66
	-3803	42.65
	-932	42.64
	-465	42.63
	-400	42.62
	-1976	42.61
	-203	42.60
	-330	42.59
	-180	42.58
	-720	42.57
	-575	42.56
	-1762	42.55
	-505	42.54
	-1616	42.53
	-139	42.52
	-10661	42.51
	-6245	42.50
	-490	42.49
	-1260	42.48
	-1629	42.47
	-20866	42.46
	-1477	42.45
	-640	42.44
	-495	42.43
	-443	42.42
	-37166	42.40
	-1501	42.39
	-51	42.38
	-330	42.36
	-430	42.35
	-3886	42.34
	-165	42.32
	-112	42.29
	-1111	42.28
	-865	42.27
	-200	42.25
	-200	42.24
	-485	42.23
	-165	42.21
	-400	42.14
	-203	42.12
	-325	42.11
	-165	42.07
	-77	42.04
Total:	- 282,078

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

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

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

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

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

Date of disclosure	24 September 2008
Contact name	Neil Kober
Telephone number	020 7595 4821
Name of offeree/offeror with which connected	BHP Billiton
Nature of connection (Note 9)	Advisor

ENDEMMPUUQGBUPRUBC

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Related Shares:

Rio Tinto