EPT Disclosure

20th Jun 2008 11:00

Name of exempt principal trader	UBS Securities Australia Limited
Company dealt in	Rio Tinto Ltd
Class of relevant security to which the dealings being disclosed relate(Note 1)	Ordinary
Date of dealing	19 June 2008

	Long	Short
	Number (%)	Number (%)
(1) Relevant securities	329082 0.70%	2647026 5.65%
(2) Derivatives (other than options)
(3) Options and agreements to purchase/sell	2102103 4.49%	1017614 2.17%
Total	2431185 5.19%	3664640 7.83%

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 (AUD) (Note 4)
Purchase	40000	139.91
Purchase	2382	137.73
Purchase	876	137.7
Purchase	812	138.25
Purchase	773	137.71
Purchase	425	137.73
Purchase	408	137.6
Purchase	366	138.83
Purchase	289	137.6
Purchase	266	137.6
Purchase	257	137.7
Purchase	233	137.73
Purchase	232	137.69
Purchase	221	139.7
Purchase	221	139.7
Purchase	209	138.83
Purchase	200	137.71
Purchase	200	137.63
Purchase	191	137.73
Purchase	184	137.7
Purchase	170	137.72
Purchase	148	137.79
Purchase	148	137.72
Purchase	137	137.73
Purchase	122	138.83
Purchase	106	138.25
Purchase	100	137.71
Purchase	80	138.25
Purchase	76	137.22
Purchase	62	137.73
Purchase	42	137.71
Purchase	39	137.71
Purchase	39	137.71
Purchase	35	137.73
Purchase	35	137.69
Purchase	19	137.79
Purchase	19	137.69
Purchase	18	137.72
Purchase	17	137.72
Purchase	15	137.69
Purchase	14	137.7
Purchase	11	137.6
Purchase	9	137.6
Purchase	9	137.6
Purchase	8	137.6
Purchase	7	137.73
Purchase	7	137.71
Purchase	7	137.73
Purchase	6	137.22
Purchase	6	137.69
Purchase	2	138.25
Purchase	2	137.73
Purchase	2	137.63
Sale	23	139.49
Sale	24	139.1
Sale	122	138.83
Sale	193	139.1
Sale	209	138.83
Sale	221	139.7
Sale	221	139.7
Sale	366	138.83
Sale	3000	138.83
Sale	3000	138.83
Sale	18436	137.51
Total purchase	50262
Total sale	25815

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 (AUD)	Type, e.g. American, European etc.	Expiry date	Option money paid/received per unit (AUD) (Note 4)
Put Option	Purchasing	25000	110	American	25-Sep-08	1.44
Put Option	Purchasing	715	139.74	American	12-Jun-13	31.61
Put Option	Purchasing	715	139.74	American	12-Jun-13	0
Put Option	Purchasing	637	139.1	American	15-Jun-11	27.03
Put Option	Purchasing	637	139.1	American	15-Jun-11	0
Put Option	Writing	637	139.1	American	15-Jun-11	0
Put Option	Writing	637	139.1	American	15-Jun-11	0
Put Option	Writing	637	139.1	American	15-Jun-11	27.03
Put Option	Writing	715	139.74	American	12-Jun-13	0
Put Option	Writing	715	139.74	American	12-Jun-13	0
Put Option	Writing	715	139.74	American	12-Jun-13	31.61
Put Option	Writing	25000	130	American	25-Sep-08	6.14

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	20 June 2008
Contact name	Belinda Maclay
Telephone number	+61 2 93242944
Name of offeree/offeror with which connected	BHP Billiton PLC/BHP Billiton Limited
Nature of connection (Note 9)	Connected Advisor

Product name, e.g. call option	Written or purchased	Number of securities to which the option or derivative relates	Exercise price (AUD) (Note 2)	Type, e.g. American, European etc.	Expiry date
Call Option	Purchased	140000	158	American	28-Aug-08
Call Option	Purchased	137000	134	American	26-Jun-08
Call Option	Purchased	100000	170	American	18-Dec-08
Call Option	Purchased	77000	150	American	24-Jul-08
Call Option	Purchased	60000	144	American	28-Aug-08
Call Option	Purchased	44000	150	American	26-Jun-08
Call Option	Purchased	30000	144	American	25-Sep-08
Call Option	Purchased	17000	170	American	25-Sep-08
Call Option	Purchased	14000	120	European	26-Jun-08
Call Option	Purchased	12000	96	European	06-Nov-08
Call Option	Purchased	10000	136	American	26-Jun-08
Call Option	Purchased	8000	146	American	26-Jun-08
Call Option	Purchased	4000	166	American	25-Sep-08
Call Option	Purchased	3000	160	American	26-Jun-08
Call Option	Purchased	3000	170	American	18-Dec-08
Call Option	Purchased	1000	166	American	26-Jun-08
Call Option	Purchased	1000	114.74	European	19-Jun-09
Call Option	Written	2000	120	American	18-Dec-08
Call Option	Written	5000	180	American	18-Dec-08
Call Option	Written	5000	140	American	26-Jun-08
Call Option	Written	10000	180	American	26-Jun-08
Call Option	Written	12000	96	European	06-Nov-08
Call Option	Written	14000	120	European	26-Jun-08
Call Option	Written	20000	170	American	26-Jun-08
Call Option	Written	62000	138	American	26-Jun-08
Call Warrant	Written	418	120	European	26-Jun-08
Call Warrant	Written	1300	140	European	26-Jun-08
Call Warrant	Written	1550	0	European	30-Jun-14
Call Warrant	Written	2150	55	European	18-Jun-09
Call Warrant	Written	3393	100	European	06-Nov-08
Call Warrant	Written	3945	120	European	26-Jun-08
Call Warrant	Written	5952	96	European	06-Nov-08
Call Warrant	Written	8906	80	European	26-May-09
Put Option	Purchased	150000	132	American	25-Sep-08
Put Option	Purchased	150000	77	American	22-Dec-11
Put Option	Purchased	100000	90	American	26-Jun-08
Put Option	Purchased	75000	124	American	26-Jun-08
Put Option	Purchased	75000	110	American	18-Dec-08
Put Option	Purchased	60000	150	American	24-Jul-08
Put Option	Purchased	60000	130	American	28-Aug-08
Put Option	Purchased	50000	62	American	26-Jun-08
Put Option	Purchased	50000	148	American	26-Jun-08
Put Option	Purchased	50000	138	American	26-Jun-08
Put Option	Purchased	12000	144	American	26-Jun-08
Put Option	Purchased	5000	100	American	26-Jun-08
Put Option	Purchased	5000	150	American	26-Jun-08
Put Option	Purchased	5000	144	American	28-Aug-08
Put Option	Purchased	4000	144	American	26-Jun-08
Put Option	Purchased	4000	148	American	26-Jun-08
Put Option	Purchased	3000	140	American	26-Jun-08
Put Option	Purchased	2000	134	American	26-Jun-08
Put Option	Written	73	135.65	American	22-Feb-11
Put Option	Written	78	127	American	31-Jan-13
Put Option	Written	91	109	American	22-Jan-09
Put Option	Written	94	131.31	American	30-Jun-11
Put Option	Written	119	83.55	American	11-Aug-10
Put Option	Written	125	99.48	American	29-Jul-10
Put Option	Written	125	99.59	American	28-Jun-12
Put Option	Written	126	99.07	American	07-Sep-12
Put Option	Written	127	98.35	American	22-Jun-10
Put Option	Written	128	77.89	American	21-Jun-11
Put Option	Written	130	76.73	American	25-Jun-08
Put Option	Written	130	76.7	American	19-May-11
Put Option	Written	131	94.91	American	26-Jul-12
Put Option	Written	132	97.5	American	02-Jul-12
Put Option	Written	146	98.79	American	29-Jul-10
Put Option	Written	146	102.05	American	26-Jul-12
Put Option	Written	150	99.59	American	29-Jul-10
Put Option	Written	152	98.36	American	28-Jun-12
Put Option	Written	154	129.41	American	11-Dec-12
Put Option	Written	157	99.86	American	29-Jul-10
Put Option	Written	158	99.12	American	29-Jul-10
Put Option	Written	158	78.77	American	24-Jun-11
Put Option	Written	159	78.2	American	23-Jun-09
Put Option	Written	159	78.31	American	21-Jun-11
Put Option	Written	164	91.04	American	11-May-12
Put Option	Written	168	148.37	American	30-May-13
Put Option	Written	175	57.14	American	24-Sep-08
Put Option	Written	176	113.21	American	25-Oct-12
Put Option	Written	181	101	American	29-Jul-10
Put Option	Written	183	135.98	American	30-Jun-11
Put Option	Written	198	100.52	American	16-Jun-10
Put Option	Written	203	98.47	American	22-Jun-10
Put Option	Written	203	98.08	American	22-Jun-10
Put Option	Written	209	81.14	American	28-Apr-11
Put Option	Written	214	93.26	American	28-Jun-12
Put Option	Written	218	100.49	American	28-Jun-12
Put Option	Written	227	44.05	American	22-Jun-10
Put Option	Written	240	83.48	American	18-Apr-11
Put Option	Written	243	102.51	American	26-Jul-12
Put Option	Written	246	101.6	American	24-Jun-10
Put Option	Written	257	76.5	American	17-Jun-11
Put Option	Written	265	75.38	American	22-Jun-11
Put Option	Written	271	73.66	American	10-Jun-09
Put Option	Written	271	73.76	American	05-Jun-09
Put Option	Written	283	78.34	American	19-Oct-11
Put Option	Written	286	91.6	American	30-Aug-12
Put Option	Written	296	67.43	American	15-Sep-09
Put Option	Written	298	100.5	American	25-Jun-10
Put Option	Written	300	71.7	American	02-Jan-09
Put Option	Written	305	75.25	American	25-Jun-09
Put Option	Written	310	96.73	American	23-Jun-10
Put Option	Written	325	77.02	American	21-May-09
Put Option	Written	341	43.98	American	24-Jun-08
Put Option	Written	343	29.15	American	20-Jun-08
Put Option	Written	352	98.21	American	29-Jul-10
Put Option	Written	353	70.82	American	09-Feb-09
Put Option	Written	356	70.14	American	10-Jun-09
Put Option	Written	363	82.51	American	28-Apr-09
Put Option	Written	371	99.3	American	29-Jul-10
Put Option	Written	382	98	American	26-Jul-12
Put Option	Written	396	75.01	American	08-Mar-10
Put Option	Written	400	74.9	American	22-Jun-11
Put Option	Written	404	98.86	American	24-Jun-10
Put Option	Written	413	96.82	American	24-Jun-10
Put Option	Written	413	96.75	American	21-Jun-12
Put Option	Written	419	71.59	American	19-Jan-09
Put Option	Written	425	78.61	American	30-Jun-11
Put Option	Written	429	34.96	American	18-Jun-09
Put Option	Written	434	98.52	American	29-Jul-10
Put Option	Written	452	44.24	American	24-Jun-08
Put Option	Written	454	44.05	American	26-Jun-08
Put Option	Written	460	109.66	American	31-Jan-13
Put Option	Written	465	98.9	American	28-Jun-12
Put Option	Written	472	90.6	American	29-Jul-10
Put Option	Written	484	103.17	American	26-Jul-12
Put Option	Written	500	160	European	26-Jun-08
Put Option	Written	509	98.07	American	29-Jul-10
Put Option	Written	510	98	American	29-Jul-10
Put Option	Written	514	77.75	American	30-Jun-11
Put Option	Written	518	96.51	American	31-May-12
Put Option	Written	524	43.89	American	24-Jun-08
Put Option	Written	528	75.48	American	29-Jun-11
Put Option	Written	538	99.08	American	26-Jul-12
Put Option	Written	547	109.66	American	27-Jan-11
Put Option	Written	555	45.04	American	22-Jun-10
Put Option	Written	561	44.56	American	25-Jun-08
Put Option	Written	562	99.67	American	29-Jul-10
Put Option	Written	564	90.39	American	22-Jun-12
Put Option	Written	566	35.33	American	22-Jun-09
Put Option	Written	567	35.27	American	19-Jun-09
Put Option	Written	573	34.9	American	18-Jun-09
Put Option	Written	576	43.4	American	23-Jun-08
Put Option	Written	591	95.3	American	29-Jul-10
Put Option	Written	598	83.69	American	22-Jun-12
Put Option	Written	600	73.45	American	30-Jun-11
Put Option	Written	601	99.71	American	25-Jun-10
Put Option	Written	626	28.75	American	23-Jun-08
Put Option	Written	628	99.44	American	29-Jul-10
Put Option	Written	634	78.7	American	27-May-09
Put Option	Written	637	139.1	American	15-Jun-11
Put Option	Written	648	97.31	American	24-Jun-09
Put Option	Written	650	92.25	American	12-Jun-12
Put Option	Written	663	75.36	American	23-Jun-11
Put Option	Written	663	75.38	American	25-Jun-09
Put Option	Written	696	99.01	American	26-Jul-12
Put Option	Written	701	42.79	American	04-Jun-10
Put Option	Written	703	85.3	American	22-Jun-12
Put Option	Written	715	139.74	American	12-Jun-13
Put Option	Written	733	102.26	American	28-Jun-12
Put Option	Written	742	53.8	American	17-Sep-08
Put Option	Written	794	75.5	American	23-Jun-11
Put Option	Written	797	43.91	American	24-Jun-08
Put Option	Written	815	98.29	American	30-Jun-08
Put Option	Written	821	103.41	American	22-Jun-12
Put Option	Written	828	98.9	American	29-Jul-10
Put Option	Written	831	96.8	American	28-Jun-12
Put Option	Written	836	99.24	American	15-Jun-10
Put Option	Written	869	75.44	American	23-Jun-11
Put Option	Written	870	97.65	American	22-Jun-12
Put Option	Written	887	98.08	American	28-Jun-12
Put Option	Written	941	42.5	American	03-Jun-10
Put Option	Written	982	74.85	American	30-Jun-11
Put Option	Written	998	140	European	26-Jun-08
Put Option	Written	1000	160	American	26-Jun-08
Put Option	Written	1000	150	American	26-Jun-08
Put Option	Written	1000	76	American	14-Jun-11
Put Option	Written	1000	76.49	American	19-Jun-09
Put Option	Written	1003	43.86	American	26-Jun-08
Put Option	Written	1008	99.09	American	18-Jun-10
Put Option	Written	1020	74.54	American	01-Aug-11
Put Option	Written	1038	76.08	American	30-Jun-11
Put Option	Written	1040	96.14	American	26-May-10
Put Option	Written	1062	98.28	American	28-Jun-12
Put Option	Written	1080	101.81	American	29-Jul-10
Put Option	Written	1083	92.25	American	28-Jun-12
Put Option	Written	1175	42.5	American	27-Jan-10
Put Option	Written	1257	99.37	American	28-Jun-12
Put Option	Written	1281	43.4	American	21-Jun-10
Put Option	Written	1291	77.44	American	30-Jun-11
Put Option	Written	1334	74.99	American	22-Jun-11
Put Option	Written	1360	73.51	American	28-Jul-11
Put Option	Written	1407	44.42	American	25-Jun-08
Put Option	Written	1418	91.6	American	29-Jul-10
Put Option	Written	1441	99.64	American	29-Jul-10
Put Option	Written	1500	78.2	American	22-Mar-10
Put Option	Written	1500	78.39	American	23-Mar-10
Put Option	Written	1512	99.17	American	25-Jun-10
Put Option	Written	1558	48.13	American	25-Jun-08
Put Option	Written	1588	99.88	American	26-Jul-12
Put Option	Written	1594	100.35	American	26-Jul-12
Put Option	Written	1600	77.2	American	25-Feb-10
Put Option	Written	1628	102.26	American	24-Jun-10
Put Option	Written	1639	103.64	American	26-Jul-12
Put Option	Written	1656	77.02	American	30-Jun-11
Put Option	Written	1787	100.7	American	26-Jul-12
Put Option	Written	1806	101.45	American	26-Jul-12
Put Option	Written	1902	98.51	American	28-Jun-12
Put Option	Written	2000	150	American	18-Dec-08
Put Option	Written	2000	130	European	26-Jun-08
Put Option	Written	2264	110.36	American	24-Jun-09
Put Option	Written	2450	76.54	American	28-Jul-11
Put Option	Written	2515	98.79	American	26-Jul-12
Put Option	Written	2716	78.99	American	28-Jul-11
Put Option	Written	2719	99.08	American	29-Jul-10
Put Option	Written	2739	94.91	American	29-Jul-10
Put Option	Written	2746	72.82	American	24-Jun-11
Put Option	Written	3000	142	American	26-Jun-08
Put Option	Written	3013	101.81	American	26-Jul-12
Put Option	Written	3628	67.79	American	29-Sep-11
Put Option	Written	3685	76.01	American	30-Jun-11
Put Option	Written	3883	77.32	American	30-Jun-11
Put Option	Written	3905	102.41	American	29-Jul-10
Put Option	Written	4058	78	American	28-Jul-11
Put Option	Written	4313	78.23	American	30-Jun-11
Put Option	Written	4931	78.43	American	28-Jul-11
Put Option	Written	5000	180	American	18-Dec-08
Put Option	Written	6000	116	American	29-Jan-09
Put Option	Written	8721	78.86	American	28-Jul-11
Put Option	Written	10000	120	American	29-Jan-09
Put Option	Written	10000	122	American	29-Jan-09
Put Option	Written	16695	102.42	American	29-Jun-12
Put Option	Written	25000	130	American	25-Sep-08
Put Option	Written	46000	110	American	25-Sep-08
Put Option	Written	50000	120	American	18-Dec-08
Put Option	Written	50000	126	American	26-Jun-08
Put Option	Written	51000	150	American	18-Dec-08
Put Option	Written	82000	130	American	29-Jan-09
Put Option	Written	100000	140	American	18-Dec-08
Put Option	Written	100000	140	American	26-Jun-08
Put Option	Written	145000	134	American	26-Jun-08
Put Option	Written	150000	79	American	22-Dec-11
Put Option	Written	200000	80	American	26-Jun-08
Put Option	Written	232000	66	American	26-Jun-08

ENDEMMFKKKPCBKKCAB

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