EPT Disclosure

12th May 2008 13:22

Name of exempt principal trader	SG Option Europe
Company dealt in	BHP Billiton Limited
Class of relevant security to which the dealings being disclosed relate(Note 1)	Ordinary Shares
Date of dealing	9th May 2008

	Long	Short
	Number (%)	Number (%)
(1) Relevant securities	747,551 (0.020)
(2) Derivatives (other than options)
(3) Options and agreements to purchase/sell
Total	747,551 (0.020)

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

Purchase/sale	Number of securities	Price per unit (Note 4)
Purchase	3453	45.75 (AUD)
Purchase	2547	45.88 (AUD)
Purchase	477	46.5 (AUD)

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.

Date of disclosure	12th May 2008
Contact name	Daniel Batchelor
Telephone number	0207 676 6936
Name of offeree/offeror with which connected	Rio Tinto plc
Nature of connection (Note 9)	Advisor

Trade Date	Way	Price	Total	COB Figures	COB %
07/02/08	Buy	36.92	1697	-221313	-0.007
08/02/08	Buy	36.14	468	-219616	-0.007
11/02/08	Buy	35.85	263	-219148	-0.007
12/02/08	Buy	38.09708	20000
	Sell	36.67	700	-218885	-0.007
14/02/08	Buy	38.42	8047
		38.48	35581
		39.03	4613
	Sell	39.03	7000	-199585	-0.006
18/02/08	Buy	38.63	106
		38.96	24457
	Sell	38.78	605	-158344	-0.005
19/02/08	Sell	39.7	8081	-134386	-0.004
21/02/08	Buy	38.8	399	-142467	-0.004
22/02/08	Buy	38.892	10228
		39	3573	-142068	-0.004
26/02/08	Buy	38.99	583	-128267	-0.004
27/02/08	Buy	39.85	817	-127684	-0.004
28/02/08	Buy	39.45	403
		39.55	2350
		39.56	1026
		39.6	7979	-126867	-0.004
29/02/08	Buy	39.58	1681
	Sell	39.18	3047
		39.58	24023	-115109	-0.003
03/03/08	Sell	38.59	2448	-140498	-0.004
04/03/08	Buy	38.49	1
	Sell	38.78	2178	-142946	-0.004
05/03/08	Buy	39.03	6720
		39.55	600	-145123	-0.004
06/03/08	Sell	39.8	1787	-137803	-0.004
07/03/08	Buy	38.88	15360	-139590	-0.004
10/03/08	Buy	37.22	500
		37.3	4745	-124230	-0.004
11/03/08	Buy	35.59	9484
		35.8986	12748	-118985	-0.004
12/03/08	Buy	36.8	2700
	Sell	37.04	9390	-96753	-0.003
13/03/08	Buy	36.38	3453
		37.15	2600
	Sell	36.38	893	-103443	-0.003
14/03/08	Buy	37.92	70276
	Sell	37.67	10576
		37.74	9802	-98283	-0.003
17/03/08	Buy	37.41	350
		37.5	4280
	Sell	37.43	1433
		37.5	26141
		37.52	2680
		37.64	5000	-48385	-0.001
18/03/08	Buy	35.7	14555
	Sell	36.1817	1220
		36.33	2980	-79009	-0.002
19/03/08	Buy	36.6	1408
		36.62	1056
		36.7	1407
		36.71	6697
		36.77	2340
	Sell	36.8	14317
		36.82	2504
		36.95	29667	-68654	-0.002
20/03/08	Buy	33.98	15000
		34.85	1092134
	Sell	33.87	773
		34.24	12848
		34.85	600	-102234	-0.003
25/03/08	Buy	34.68	2000
		34.69	2000
		34.71	2000
		34.72	2000
		34.73	2000
		34.75	1542
		34.8	14370
		34.85	5000
	Sell	34.6814	3205	990679	0.029
26/03/08	Buy	35.31	3700
	Sell	35.31	12823	1018386	0.030
27/03/08	Buy	35.76	525	1009263	0.030
28/03/08	Buy	36.05	1082
	Sell	36.05	53501	1009788	0.030
31/03/08	Buy	35.81	10762	957369	0.029
01/04/08	Buy	36.65	2398	968131	0.029
02/04/08	Buy	36.61	2000
		36.65	248
		36.66	2000
		36.6724	145
		36.7	752
		36.75	3271
		37.1	26113
	Sell	36.69	4800	970529	0.029
03/04/08	Buy	38.05	6027
	Sell	37.6849	774	1000258	0.030
04/04/08	Buy	38.78	2000	1005511	0.030
07/04/08	Buy	40.33	9288
		40.34	204
	Sell	39.6	18552
		39.73	2024
		39.74	2976
		40.0914	1477
		40.55	5449	1007511	0.030
08/04/08	Buy	40.4	5031	986525	0.029
09/04/08	Buy	41.91	468
		42.31	14	991556	0.030
10/04/08	Buy	41.8	1000
	Sell	41.65	10870
		41.67	18944
		41.69	1851
		41.7	197
		41.72	12756
		41.74	12501
		41.81	1549
		41.82	8999
		41.83	12756
		41.89	12756
		41.9	12756
		41.93	10772	992038	0.030
11/04/08	Sell	42.16	2177	876331	0.026
14/04/08	Buy	41.6	250
	Sell	41.65	3014	874154	0.026
15/04/08	Buy	42	7406	871390	0.026
16/04/08	Buy	42.8	4169
	Sell	42.8	10095
		43.2	2000
		43.21	2000	878796	0.026
17/04/08	Buy	43.39	201
	Sell	43.8423	1335
		44.14	3665	868870	0.026
18/04/08	Buy	42.42	6846
	Sell	42.42	11192	864071	0.026
22/04/08	Buy	43.52	4057
	Sell	43.52	7104
		43.7456	1253
		43.8075	336
		44.15	3664	859725	0.026
23/04/08	Sell	45.1	10198	851425	0.025
24/04/08	Buy	44.61	3515
		44.6342	2485
	Sell	44.9	436	841227	0.025
28/04/08	Buy	43.6	5115
		45.09	2000
		45.12	2528
	Sell	43.6	14111
		43.8625	1668
		45.12	2000	846791	0.025
29/04/08	Buy	43.89	1319
		44	2800
	Sell	44	10123	838655	0.025
30/04/08	Buy	42.27	3988
	Sell	42.27	34552	832651	0.025
01/05/08	Sell	42.01	5000
		42.05	2000
		42.08	2000
		42.15	2000
		42.2	2000
		42.9	21179	802087	0.024
02/05/08	Buy	42.89	5000
		43.28	6503	767908	0.023
	Sell	43.29	4721
		43.3	7000
		43.42	27533	779411	0.023
05/05/08	Buy	44.12	2054
		44.4746	2641	740157	0.022
06/05/08	Buy	44.42	1138	744852	0.022
07/05/08	Buy	45.29	1311
		45.44	250	745990	0.022

ENDEMMATMJTMMBBBLP

---

Related Shares:

BHP Group