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EPT Disclosure

16th Oct 2008 16:05

RNS Number : 0407G

Citigroup Derivatives Markets Inc

16 October 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	Citigroup Derivatives Markets Inc
Company dealt in	Rio Tinto plc
Class of relevant security to which the dealings being disclosed relate (Note 1)	Ordinary Shares (dealt in the form of ADRs)
Date of dealing	15 October 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	27,625 (0.00%)	33,760 (0.00%)
(2) Derivatives (other than options)	(0.00%)	(0.00%)
(3) Options and agreements to purchase/sell	175,700 (0.02%)	191,500 (0.02%)
Total	203,325 (0.02%)	225,260 (0.02%)

(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
Convertible	Number (%)	Number (%)
(1) Relevant securities	(0.00%)	(0.00%)
(2) Derivatives (other than options)	(0.00%)	(0.00%)
(3) Options and agreements to purchase/sell	(0.00%)	(0.00%)
Total	(0.00%)	(0.00%)

Rights to subscribe (Note 2)

Class of relevant security:

Details

3. DEALINGS (Note 3)

(a) Purchases and sales

Purchases	Number of securities	Price per unit (Note 4) USD (unless stated)
	1000	225
	800	267.4
	500	203.5
	300	171.26
	300	276.7
	100	171.37
	100	171.37
	100	171.32
	100	171.37
	100	209.4
	61	171.39
	39	171.37
Total	3,500

Sales	Number of securities	Price per unit (Note 4) USD (unless stated)
	-2	155.58
	-3	155.59
	-3	155.58
	-3	155.58
	-8	155.52
	-8	155.52
	-8	155.52
	-8	155.52
	-8	155.52
	-8	155.52
	-8	155.54
	-8	155.52
	-8	155.52
	-8	155.52
	-8	155.52
	-8	155.52
	-12	172.74
	-20	155.52
	-23	159.9
	-81	155.52
	-82	159.86
	-88	172.95
	-92	155.58
	-95	159.89
	-100	172.78
	-100	172.79
	-100	172.78
	-100	172.78
	-100	172.78
	-100	172.53
	-100	172.59
	-100	171.98
	-100	172.44
	-100	155.5
	-100	155.5
	-100	159.87
	-200	155.65
	-200	155.52
	-200	155.58
	-300	160.12
	-4500	347.76667
	-4900	347.79184
Total	12,100

(b) Derivatives transactions (other than options)

Product name,

e.g. CFD

Long/short (Note 5)

Number of securities (Note 6)

Price per unit (Note 4)

Options transactions in respect of existing securities

Writing, selling, purchasing or varying

Product name, e.g. call option (C = call; P = put)	Writing, selling, purchasing, varying etc.	Number of securities to which the option relates (Note 6)	Exercise Price (USD)	Type, e.g. American, European etc.	Expiry date	Option money paid/received per unit (USD) (Note 4)
P	purchasing	2200	125	AMERICAN	2008-11-22	10.5
C	purchasing	1000	185	AMERICAN	2008-10-18	3.2
C	purchasing	1000	420	AMERICAN	2010-01-16	6.5
C	purchasing	1000	400	AMERICAN	2010-01-16	7.8
C	purchasing	1000	340	AMERICAN	2009-01-17	1.5
C	purchasing	1000	350	AMERICAN	2009-01-17	1.25
C	purchasing	1000	370	AMERICAN	2009-01-17	0.85
P	purchasing	1000	240	AMERICAN	2008-10-18	15
P	purchasing	800	280	AMERICAN	2008-10-18	12.6
P	purchasing	500	220	AMERICAN	2008-10-18	16.5
P	purchasing	300	340	AMERICAN	2009-01-17	63.3
P	purchasing	100	220	AMERICAN	2008-10-18	10.6
C	selling	-100	220	AMERICAN	2008-10-18	0.4
C	selling	-1000	175	AMERICAN	2008-10-18	7.7
C	selling	-1000	190	AMERICAN	2008-10-18	2.85
P	selling	-1000	165	AMERICAN	2008-10-18	6.5
P	selling	-1000	170	AMERICAN	2008-10-18	8.6
C	selling	-1000	195	AMERICAN	2008-10-18	1.85
P	selling	-1000	160	AMERICAN	2008-10-18	4.8
C	selling	-1000	200	AMERICAN	2008-10-18	1.25
P	selling	-1000	270	AMERICAN	2008-10-18	99.1
P	selling	-1000	270	AMERICAN	2008-10-18	99.1
C	selling	-2000	180	AMERICAN	2008-10-18	5.6
P	selling	-4500	380	AMERICAN	2009-01-17	32.233333
P	selling	-4900	380	AMERICAN	2009-01-17	32.208163

(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

Date of disclosure	16 October 2008
Contact name	Pavla Trskova
Telephone number	02890 409544
Name of offeree/offeror with which connected	BHP Billiton plc
Nature of connection (Note 9)	Corporate Broker/Financial Advisor

Notes

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

SUPPLEMENTAL FORM 38.5(b)

DETAILS OF OPEN POSITIONS

(This form should be attached to Form 38.5(b))

OPEN POSITIONS (Note 1)

Product name, e.g. call option	Written or purchased	Number of securities to which the option or derivative relates	Exercse price (Note 2)	Type, e.g. American, European etc.	Expiry date
C	purchased	7000	330	American	2008-11-22
C	purchased	6100	350	American	2008-11-22
C	purchased	6000	340	American	2008-11-22
C	purchased	5900	360	American	2009-01-17
P	purchased	4200	250	American	2009-04-18
C	purchased	4200	300	American	2008-11-22
C	purchased	4100	400	American	2009-01-17
C	purchased	4000	270	American	2008-11-22
C	purchased	4000	290	American	2008-11-22
C	purchased	4000	310	American	2008-11-22
P	purchased	3000	410	American	2009-04-18
P	purchased	3000	420	American	2009-04-18
C	purchased	3000	210	American	2008-10-18
C	purchased	3000	280	American	2008-11-22
C	purchased	3000	320	American	2008-11-22
C	purchased	2300	350	American	2009-01-17
C	purchased	2300	330	American	2008-11-22
C	purchased	2200	420	American	2008-10-18
P	purchased	2200	125	American	2008-11-22
P	purchased	2100	290	American	2009-01-17
C	purchased	2100	260	American	2008-11-22
C	purchased	2000	200	American	2009-04-18
C	purchased	2000	320	American	2009-04-18
C	purchased	2000	320	American	2009-04-18
P	purchased	2000	390	American	2009-04-18
P	purchased	2000	400	American	2009-04-18
P	purchased	2000	195	American	2008-10-18
C	purchased	2000	310	American	2008-10-18
C	purchased	2000	300	American	2008-11-22
C	purchased	2000	310	American	2008-11-22
C	purchased	2000	370	American	2008-11-22
C	purchased	2000	380	American	2008-11-22
C	purchased	1900	220	American	2008-10-18
C	purchased	1900	290	American	2008-10-18
C	purchased	1900	470	American	2008-10-18
P	purchased	1800	200	American	2008-10-18
C	purchased	1600	370	American	2009-01-17
C	purchased	1600	290	American	2008-10-18
C	purchased	1600	250	American	2008-11-22
C	purchased	1300	380	American	2009-01-17
P	purchased	1300	380	American	2009-04-18
C	purchased	1100	260	American	2010-01-16
C	purchased	1100	410	American	2009-01-17
C	purchased	1100	260	American	2009-04-18
C	purchased	1100	440	American	2008-10-18
P	purchased	1100	220	American	2008-11-22
C	purchased	1000	400	American	2010-01-16
C	purchased	1000	420	American	2010-01-16
C	purchased	1000	430	American	2010-01-16
C	purchased	1000	470	American	2010-01-16
C	purchased	1000	490	American	2010-01-16
C	purchased	1000	340	American	2009-01-17
C	purchased	1000	390	American	2009-01-17
C	purchased	1000	480	American	2009-01-17
C	purchased	1000	490	American	2009-01-17
C	purchased	1000	520	American	2009-01-17
C	purchased	1000	550	American	2009-01-17
C	purchased	1000	200	American	2009-04-18
C	purchased	1000	210	American	2009-04-18
C	purchased	1000	240	American	2009-04-18
P	purchased	1000	270	American	2009-04-18
C	purchased	1000	290	American	2009-04-18
P	purchased	1000	290	American	2009-04-18
P	purchased	1000	360	American	2009-04-18
C	purchased	1000	370	American	2009-04-18
P	purchased	1000	370	American	2009-04-18
P	purchased	1000	180	American	2008-10-18
C	purchased	1000	185	American	2008-10-18
P	purchased	1000	185	American	2008-10-18
C	purchased	1000	190	American	2008-10-18
P	purchased	1000	190	American	2008-10-18
P	purchased	1000	210	American	2008-10-18
C	purchased	1000	230	American	2008-10-18
C	purchased	1000	450	American	2008-10-18
C	purchased	1000	500	American	2008-10-18
P	purchased	1000	210	American	2008-11-22
C	purchased	1000	260	American	2008-11-22
P	purchased	1000	260	American	2008-11-22
P	purchased	1000	270	American	2008-11-22
C	purchased	1000	280	American	2008-11-22
C	purchased	1000	290	American	2008-11-22
P	purchased	1000	310	American	2008-11-22
C	purchased	1000	360	American	2008-11-22
C	purchased	1000	370	American	2008-11-22
C	purchased	900	280	American	2009-01-17
C	purchased	900	420	American	2009-01-17
C	purchased	900	240	American	2008-10-18
C	purchased	900	250	American	2008-10-18
C	purchased	900	270	American	2008-10-18
C	purchased	900	360	American	2008-10-18
C	purchased	900	370	American	2008-10-18
C	purchased	900	360	American	2008-11-22
C	purchased	800	340	American	2009-01-17
C	purchased	700	260	American	2008-10-18
C	purchased	600	250	American	2008-10-18
C	purchased	600	380	American	2008-10-18
C	purchased	600	600	American	2008-10-18
P	purchased	500	190	American	2008-10-18
C	purchased	500	300	American	2008-10-18
P	purchased	400	310	American	2009-04-18
P	purchased	400	350	American	2009-04-18
C	purchased	400	330	American	2008-10-18
P	purchased	400	230	American	2008-11-22
P	purchased	300	320	American	2009-01-17
P	purchased	300	330	American	2009-04-18
C	purchased	300	220	American	2008-10-18
P	purchased	300	260	American	2008-10-18
C	purchased	300	430	American	2008-10-18
C	purchased	300	460	American	2008-10-18
P	purchased	200	380	American	2010-01-16
C	purchased	200	360	American	2009-01-17
C	purchased	200	390	American	2008-10-18
C	purchased	200	490	American	2008-10-18
C	purchased	200	520	American	2008-10-18
P	purchased	100	250	American	2009-01-17
C	purchased	100	280	American	2009-01-17
C	purchased	100	300	American	2009-01-17
C	purchased	100	300	American	2009-01-17
C	purchased	100	310	American	2009-01-17
C	purchased	100	330	American	2009-01-17
P	purchased	100	330	American	2009-01-17
C	purchased	100	370	American	2009-01-17
C	purchased	100	270	American	2009-04-18
C	purchased	100	300	American	2009-04-18
P	purchased	100	300	American	2009-04-18
P	purchased	100	320	American	2009-04-18
P	purchased	100	340	American	2009-04-18
C	purchased	100	410	American	2009-04-18
C	purchased	100	430	American	2008-10-18
C	purchased	100	530	American	2008-10-18
P	purchased	100	340	American	2008-11-22
C	written	-100	300	American	2010-01-16
C	written	-100	360	American	2010-01-16
P	written	-100	470	American	2010-01-16
C	written	-100	510	American	2010-01-16
C	written	-100	540	American	2010-01-16
P	written	-100	170	American	2009-01-17
P	written	-100	260	American	2009-01-17
C	written	-100	440	American	2009-01-17
C	written	-100	460	American	2009-01-17
C	written	-100	560	American	2009-01-17
P	written	-100	240	American	2009-04-18
C	written	-100	250	American	2009-04-18
C	written	-100	280	American	2009-04-18
P	written	-100	260	American	2008-10-18
C	written	-100	360	American	2008-10-18
C	written	-100	660	American	2008-10-18
C	written	-100	700	American	2008-10-18
C	written	-100	150	American	2008-11-22
C	written	-100	160	American	2008-11-22
P	written	-200	410	American	2010-01-16
P	written	-200	230	American	2009-01-17
C	written	-200	430	American	2009-01-17
C	written	-200	550	American	2009-01-17
C	written	-200	460	American	2008-10-18
C	written	-200	550	American	2008-10-18
C	written	-200	220	American	2008-11-22
P	written	-300	400	American	2010-01-16
P	written	-300	270	American	2009-01-17
P	written	-300	330	American	2009-01-17
P	written	-300	280	American	2009-04-18
P	written	-300	310	American	2008-10-18
C	written	-300	350	American	2008-10-18
C	written	-300	400	American	2008-10-18
C	written	-300	410	American	2008-10-18
C	written	-300	480	American	2008-10-18
C	written	-300	600	American	2008-10-18
C	written	-300	230	American	2008-11-22
C	written	-400	500	American	2010-01-16
C	written	-400	380	American	2008-10-18
P	written	-500	320	American	2010-01-16
C	written	-500	560	American	2010-01-16
P	written	-500	200	American	2009-04-18
C	written	-500	250	American	2009-04-18
P	written	-500	220	American	2008-10-18
P	written	-500	220	American	2008-10-18
C	written	-500	410	American	2008-10-18
P	written	-600	210	American	2009-04-18
P	written	-600	250	American	2009-04-18
C	written	-600	230	American	2008-10-18
P	written	-600	250	American	2008-10-18
C	written	-600	270	American	2008-10-18
C	written	-600	500	American	2008-10-18
P	written	-600	220	American	2008-11-22
P	written	-700	210	American	2009-01-17
P	written	-700	310	American	2009-01-17
P	written	-700	220	American	2009-04-18
P	written	-700	280	American	2008-10-18
C	written	-700	330	American	2008-10-18
C	written	-700	440	American	2008-10-18
C	written	-700	470	American	2008-10-18
P	written	-700	480	American	2008-10-18
C	written	-800	490	American	2008-10-18
P	written	-900	240	American	2010-01-16
P	written	-900	490	American	2010-01-16
P	written	-900	500	American	2010-01-16
P	written	-900	230	American	2009-01-17
C	written	-900	320	American	2009-01-17
C	written	-900	280	American	2008-10-18
P	written	-1000	240	American	2010-01-16
P	written	-1000	280	American	2010-01-16
P	written	-1000	300	American	2010-01-16
C	written	-1000	520	American	2010-01-16
C	written	-1000	530	American	2010-01-16
C	written	-1000	540	American	2010-01-16
C	written	-1000	550	American	2010-01-16
P	written	-1000	250	American	2009-01-17
P	written	-1000	310	American	2009-01-17
C	written	-1000	430	American	2009-01-17
C	written	-1000	440	American	2009-01-17
C	written	-1000	470	American	2009-01-17
C	written	-1000	500	American	2009-01-17
C	written	-1000	510	American	2009-01-17
C	written	-1000	580	American	2009-01-17
C	written	-1000	590	American	2009-01-17
C	written	-1000	600	American	2009-01-17
C	written	-1000	220	American	2009-04-18
C	written	-1000	230	American	2009-04-18
C	written	-1000	380	American	2009-04-18
C	written	-1000	390	American	2009-04-18
C	written	-1000	420	American	2009-04-18
C	written	-1000	450	American	2009-04-18
C	written	-1000	470	American	2009-04-18
C	written	-1000	470	American	2009-04-18
P	written	-1000	160	American	2008-10-18
P	written	-1000	170	American	2008-10-18
C	written	-1000	175	American	2008-10-18
C	written	-1000	190	American	2008-10-18
C	written	-1000	195	American	2008-10-18
P	written	-1000	200	American	2008-10-18
C	written	-1000	210	American	2008-10-18
P	written	-1000	250	American	2008-10-18
P	written	-1000	270	American	2008-10-18
P	written	-1000	270	American	2008-10-18
C	written	-1000	350	American	2008-10-18
C	written	-1000	550	American	2008-10-18
C	written	-1000	570	American	2008-10-18
C	written	-1000	580	American	2008-10-18
C	written	-1000	590	American	2008-10-18
C	written	-1000	620	American	2008-10-18
C	written	-1000	620	American	2008-10-18
C	written	-1000	630	American	2008-10-18
C	written	-1000	640	American	2008-10-18
C	written	-1000	650	American	2008-10-18
C	written	-1000	660	American	2008-10-18
C	written	-1000	170	American	2008-11-22
C	written	-1000	180	American	2008-11-22
P	written	-1100	360	American	2010-01-16
P	written	-1100	480	American	2010-01-16
P	written	-1100	200	American	2009-01-17
C	written	-1100	260	American	2008-10-18
P	written	-1200	210	American	2009-01-17
P	written	-1200	290	American	2008-10-18
C	written	-1200	500	American	2008-10-18
P	written	-1300	210	American	2008-10-18
C	written	-1300	240	American	2008-10-18
P	written	-1300	370	American	2008-10-18
C	written	-1400	500	American	2009-01-17
P	written	-1500	390	American	2008-10-18
C	written	-1500	510	American	2008-10-18
P	written	-1600	240	American	2008-10-18
C	written	-1600	280	American	2008-10-18
C	written	-1600	550	American	2008-10-18
P	written	-1600	200	American	2008-11-22
C	written	-1700	400	American	2008-10-18
C	written	-1800	520	American	2008-10-18
C	written	-2000	430	American	2009-04-18
C	written	-2000	440	American	2009-04-18
C	written	-2000	180	American	2008-10-18
C	written	-2000	310	American	2008-10-18
C	written	-2000	540	American	2008-10-18
C	written	-2000	200	American	2008-11-22
P	written	-2000	200	American	2008-11-22
C	written	-2100	450	American	2008-10-18
C	written	-2500	300	American	2008-10-18
C	written	-2600	540	American	2008-10-18
C	written	-2900	200	American	2008-10-18
P	written	-2900	230	American	2008-10-18
C	written	-3000	560	American	2008-10-18
C	written	-3000	570	American	2008-10-18
C	written	-3500	420	American	2008-10-18
C	written	-4000	580	American	2008-10-18
C	written	-4400	530	American	2008-10-18
P	written	-4400	150	American	2008-11-22
P	written	-4600	220	American	2010-01-16
P	written	-5100	200	American	2008-10-18
C	written	-5400	220	American	2010-01-16
C	written	-5400	390	American	2008-10-18
C	written	-6100	150	American	2008-11-22
C	written	-6600	200	American	2008-10-18
C	written	-7900	350	American	2009-01-17

Notes

1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given. Full details of any existing agreements to purchase or to sell should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rules 8 and 38.5 and their Notes which 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

EMMILFIEIELRLIT

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