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EPT Disclosure

15th Sep 2008 10:33

RNS Number : 4204D

Citigroup Derivatives Markets Inc

15 September 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	12 September 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	46,709 (0.00%)	27,560 (0.00%)
(2) Derivatives (other than options)	(0.00%)	(0.00%)
(3) Options and agreements to purchase/sell	99,600 (0.01%)	149,600 (0.01%)
Total	146,309 (0.01%)	177,160 (0.01%)

(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)
	200	324.25
	200	323.82
	100	325.1
	100	325.1
	100	324.21
Total	700

Sales	Number of securities	Price per unit (Note 4) USD (unless stated)
	-100	324.62
	-100	324.59
	-100	320.19
	-100	311.77
	-100	311.77
	-100	311.04
	-100	311.04
	-100	311.8
	-200	320.19
Total	1,000

(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)

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)
C	purchasing	500	290	AMERICAN	2008-10-18	31.2
P	purchasing	200	290	AMERICAN	2008-09-20	1.69
C	purchasing	200	360	AMERICAN	2008-10-18	5.87
C	purchasing	100	410	AMERICAN	2009-04-18	12.5
C	selling	-200	370	AMERICAN	2008-10-18	4.27
P	selling	-200	270	AMERICAN	2008-09-20	0.69
P	selling	-300	330	AMERICAN	2008-09-20	13.5
C	selling	-300	320	AMERICAN	2008-09-20	13.2
C	selling	-300	300	AMERICAN	2008-09-20	27.7
C	selling	-500	390	AMERICAN	2008-09-20	0.45
C	selling	-500	330	AMERICAN	2008-09-20	7.8
P	selling	-900	310	AMERICAN	2008-09-20	9.4
P	selling	-1000	310	AMERICAN	2008-09-20	6.1

(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	15 September 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
P	purchased	4900	380	American	2009-01-17
P	purchased	4500	380	American	2009-01-17
C	purchased	4100	400	American	2009-01-17
C	purchased	3900	430	American	2008-09-20
P	purchased	3000	430	American	2009-01-17
P	purchased	3000	440	American	2009-01-17
P	purchased	3000	410	American	2009-04-18
P	purchased	3000	420	American	2009-04-18
P	purchased	2500	350	American	2008-09-20
P	purchased	2200	350	American	2008-10-18
C	purchased	2200	420	American	2008-10-18
P	purchased	2100	290	American	2009-01-17
C	purchased	2100	440	American	2008-10-18
P	purchased	2000	420	American	2009-01-17
P	purchased	2000	450	American	2009-01-17
P	purchased	2000	450	American	2009-01-17
P	purchased	2000	390	American	2009-04-18
P	purchased	2000	400	American	2009-04-18
C	purchased	1900	470	American	2008-10-18
C	purchased	1800	410	American	2008-09-20
C	purchased	1700	310	American	2008-09-20
P	purchased	1500	330	American	2009-01-17
P	purchased	1500	360	American	2008-09-20
C	purchased	1500	370	American	2008-10-18
C	purchased	1300	380	American	2009-01-17
P	purchased	1300	380	American	2009-04-18
P	purchased	1300	310	American	2008-09-20
C	purchased	1200	420	American	2008-09-20
P	purchased	1100	430	American	2009-01-17
P	purchased	1100	320	American	2008-09-20
P	purchased	1100	330	American	2008-09-20
P	purchased	1100	370	American	2008-10-18
P	purchased	1000	560	American	2010-01-16
P	purchased	1000	310	American	2009-01-17
C	purchased	1000	390	American	2009-01-17
P	purchased	1000	390	American	2009-01-17
P	purchased	1000	400	American	2009-01-17
P	purchased	1000	410	American	2009-01-17
P	purchased	1000	460	American	2009-01-17
C	purchased	1000	480	American	2009-01-17
C	purchased	1000	520	American	2009-01-17
C	purchased	1000	550	American	2009-01-17
P	purchased	1000	360	American	2009-04-18
P	purchased	1000	370	American	2009-04-18
C	purchased	1000	380	American	2008-10-18
C	purchased	1000	450	American	2008-10-18
C	purchased	1000	500	American	2008-10-18
C	purchased	900	420	American	2009-01-17
C	purchased	900	340	American	2008-09-20
P	purchased	900	360	American	2008-10-18
P	purchased	800	310	American	2009-01-17
P	purchased	700	340	American	2008-09-20
P	purchased	600	290	American	2008-09-20
C	purchased	600	400	American	2008-10-18
C	purchased	600	600	American	2008-10-18
P	purchased	500	320	American	2008-09-20
P	purchased	500	370	American	2008-09-20
P	purchased	400	420	American	2009-01-17
P	purchased	400	310	American	2009-04-18
P	purchased	400	350	American	2009-04-18
P	purchased	400	280	American	2008-09-20
C	purchased	400	330	American	2008-10-18
C	purchased	400	340	American	2008-10-18
P	purchased	300	320	American	2010-01-16
P	purchased	300	380	American	2010-01-16
P	purchased	300	320	American	2009-01-17
P	purchased	300	330	American	2009-04-18
C	purchased	300	300	American	2008-09-20
C	purchased	300	400	American	2008-09-20
C	purchased	300	410	American	2008-09-20
P	purchased	300	410	American	2008-10-18
C	purchased	300	430	American	2008-10-18
C	purchased	300	460	American	2008-10-18
C	purchased	200	450	American	2009-01-17
C	purchased	200	370	American	2008-09-20
C	purchased	200	490	American	2008-10-18
C	purchased	200	520	American	2008-10-18
C	purchased	100	550	American	2010-01-16
C	purchased	100	280	American	2009-01-17
C	purchased	100	330	American	2009-01-17
P	purchased	100	340	American	2009-01-17
C	purchased	100	370	American	2009-01-17
P	purchased	100	390	American	2009-01-17
C	purchased	100	410	American	2009-01-17
P	purchased	100	300	American	2009-04-18
C	purchased	100	410	American	2009-04-18
C	purchased	100	280	American	2008-09-20
C	purchased	100	310	American	2008-09-20
C	purchased	100	330	American	2008-09-20
P	purchased	100	350	American	2008-10-18
C	purchased	100	430	American	2008-10-18
C	purchased	100	530	American	2008-10-18
C	written	-100	360	American	2010-01-16
C	written	-100	510	American	2010-01-16
C	written	-100	540	American	2010-01-16
C	written	-100	350	American	2009-01-17
C	written	-100	560	American	2009-01-17
C	written	-100	340	American	2008-09-20
P	written	-100	280	American	2008-10-18
C	written	-100	290	American	2008-10-18
C	written	-100	360	American	2008-10-18
P	written	-100	390	American	2008-10-18
C	written	-100	410	American	2008-10-18
P	written	-100	430	American	2008-10-18
C	written	-100	660	American	2008-10-18
C	written	-100	700	American	2008-10-18
P	written	-200	410	American	2010-01-16
P	written	-200	330	American	2009-01-17
P	written	-200	390	American	2008-09-20
C	written	-200	450	American	2008-09-20
P	written	-200	340	American	2008-10-18
C	written	-200	380	American	2008-10-18
P	written	-200	380	American	2008-10-18
C	written	-200	460	American	2008-10-18
C	written	-200	550	American	2008-10-18
P	written	-300	290	American	2008-09-20
C	written	-300	320	American	2008-09-20
C	written	-300	360	American	2008-09-20
P	written	-300	300	American	2008-10-18
C	written	-300	310	American	2008-10-18
P	written	-300	310	American	2008-10-18
C	written	-300	390	American	2008-10-18
C	written	-300	480	American	2008-10-18
C	written	-300	600	American	2008-10-18
P	written	-400	550	American	2010-01-16
P	written	-400	330	American	2008-09-20
P	written	-400	270	American	2008-10-18
P	written	-400	290	American	2008-10-18
C	written	-500	330	American	2008-09-20
C	written	-500	490	American	2008-09-20
P	written	-500	400	American	2008-10-18
C	written	-600	600	American	2009-01-17
P	written	-600	340	American	2008-10-18
C	written	-600	440	American	2008-10-18
C	written	-600	500	American	2008-10-18
C	written	-700	280	American	2008-10-18
C	written	-700	350	American	2008-10-18
C	written	-700	470	American	2008-10-18
P	written	-700	480	American	2008-10-18
P	written	-800	580	American	2009-01-17
P	written	-800	300	American	2008-09-20
C	written	-800	490	American	2008-10-18
C	written	-900	300	American	2009-01-17
P	written	-900	310	American	2008-09-20
P	written	-1000	480	American	2010-01-16
P	written	-1000	490	American	2010-01-16
P	written	-1000	500	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
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	470	American	2009-04-18
P	written	-1000	340	American	2008-09-20
C	written	-1000	430	American	2008-09-20
C	written	-1000	510	American	2008-09-20
C	written	-1000	520	American	2008-09-20
C	written	-1000	540	American	2008-09-20
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	-1100	500	American	2009-01-17
C	written	-1100	350	American	2008-10-18
C	written	-1200	500	American	2008-10-18
C	written	-1300	320	American	2008-09-20
C	written	-1300	380	American	2008-09-20
P	written	-1500	370	American	2008-10-18
C	written	-1500	510	American	2008-10-18
P	written	-1600	310	American	2008-10-18
C	written	-1600	550	American	2008-10-18
P	written	-1700	300	American	2008-09-20
P	written	-1800	330	American	2008-10-18
C	written	-1800	520	American	2008-10-18
P	written	-2000	380	American	2008-10-18
C	written	-2000	540	American	2008-10-18
C	written	-2100	450	American	2008-10-18
C	written	-2200	380	American	2008-09-20
C	written	-2200	400	American	2008-09-20
C	written	-2600	360	American	2008-09-20
C	written	-2600	540	American	2008-10-18
C	written	-2800	470	American	2008-09-20
P	written	-3000	390	American	2008-10-18
C	written	-3000	560	American	2008-10-18
C	written	-3000	570	American	2008-10-18
C	written	-3100	370	American	2008-09-20
C	written	-3200	350	American	2008-09-20
C	written	-3200	390	American	2008-09-20
P	written	-3300	350	American	2008-09-20
P	written	-3400	360	American	2008-09-20
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	-4500	370	American	2008-09-20
P	written	-4500	290	American	2008-10-18
C	written	-4700	350	American	2008-09-20
C	written	-4700	390	American	2008-09-20
C	written	-5100	390	American	2008-10-18
P	written	-5600	300	American	2008-10-18

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

EMMIIFVAAVIELIT

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