Citigroup GM Aust. - EPT Disclosure

RNS Number:7868L
Citigroup GM Australia Pty Ltd
15 January 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 Global Markets Australia Pty Limited
Company dealt in Rio Tinto Ltd
Class of relevant security to which the Ord/Equity
dealings being disclosed relate (Note 1)

Date of dealing 14 January 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 633,686 427,300
(0.13%) (0.09%)

(2) Derivatives (other than options)
(0.00%) (0.00%)

(3) Options and agreements to purchase/sell 1,144,885 2,448,605
(0.25%) (0.53%)

Total 1,778,571 2,875,905
(0.38%) (0.62%)

(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%)

(c) Rights to subscribe (Note 2)

Class of relevant security: Details

3. DEALINGS (Note 3)

(a) Purchases and sales

Purchase Number of securities Price per unit (Note 4)

AUD (unless stated)
44271 125.6
5000 126
3967 126
3011 125.6
3011 125.6
1915 126.14
1881 123.5
1071 124.83
1033 126
702 125.36
595 125.35
585 126.14
525 124.99
453 125
371 125.97
349 125.94
260 125.96
250 123.25
244 125
163 123.49
155 123.48
147 125.35
80 125.94
78 124.83
75 124.83
70 125.94
55 125.34
38 124.85
37 123.99
20 123.48
16 124.81
16 123.1
14 123.49
1 125.34
1 123.08
1 125.94
Total 70,461

Sales Number of securities Price per unit (Note 4)

AUD (unless stated)
-58 126.75
-59 126
-90 125
-120 126.75
-150 126.75
-181 124
-194 126
-221 126.75
-271 125
-297 126.75
-364 126.75
-364 124
-480 124.01
-500 126.75
-500 125
-500 124
-500 124
-519 126.75
-870 124.28
-880 126.2
-1020 124.01
-1036 124
-1155 125
-1758 125
-44271 125.6
Total 56,358

(b) Derivatives transactions (other than options)

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

e.g. CFD

(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

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

P = put option)
C Option Purchasing 65348 124 E 20080227 0
C Option Purchasing 4000 124 E 20080227 0.5
C Option Purchasing 1000 100 A 20080327 30.09
C Option Purchasing 908 124 E 20080227 0.75
C Option Selling -4000 124 E 20080227 0.79
C Option Selling -5708 124 E 20080227 0.79

(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 January 2008

Contact name Selina Campbell

Telephone number 02890 409538

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, Written or Number of Exercise price Type, e.g. Expiry date
purchased securities to which (Note 2) American, European
e.g. call option the option or etc.
derivative relates

P Written 300000 112 A 20080124
P Written 200000 88 A 20080327
P Written 100000 90 A 20080327
P Written 100000 132 A 20080925
C Purchased 65000 112 A 20080327
P Written 50979 56.1501 A 20101011
C Purchased 50000 132 A 20080228
C Purchased 50000 130 A 20080327
P Written 40000 74.25 E 20110727
P Written 30588 56.0324 E 20081103
C Purchased 29000 138 A 20080327
P Written 7517 116.82 A 20120711
P Written 6789 94.91 A 20110623
P Written 6646 37.6132 E 20091001
P Written 6415 77.94 E 20100219
P Written 6268 88.6 A 20120327
C Purchased 6000 119.66 A 20080124
P Written 5906 119.75 A 20120628
P Written 5780 109.19 A 20120530
P Written 5608 92.64 A 20110624
P Written 5000 107.89 A 20080124
P Written 4886 97.272 A 20120828
P Written 4420 88.07 A 20110623
P Written 4320 99.12 A 20120425
P Written 3828 115.61 A 20120613
P Written 3801 96.12 A 20110623
P Written 3468 164.66 A 20121227
P Written 3105 99.8 A 20110428
P Written 2994 85.04 A 20110328
P Written 2862 119 A 20120711
P Written 2591 38.5842 E 20091201
P Written 2269 44.0766 E 20080630
P Written 2248 73.8533 A 20101229
P Written 2024 98.79 E 20100629
C Purchased 2000 78.46 A 20090924
P Written 1976 160.932 A 20121128
P Written 1792 153.6 A 20130107
P Written 1370 85.0735 A 20110228
P Written 1273 78.5 E 20110630
P Written 1188 105.3 A 20110523
P Written 1152 43.3704 E 20100628
P Written 1152 43.3704 E 20100628
P Written 1132 83.22 A 20111007
P Written 1037 43.3704 E 20080627
C Purchased 1000 106 A 20080626
P Written 869 89.4361 A 20110207
P Written 765 43.9589 E 20080630
P Written 700 103.7 A 20120515
P Written 561 89 E 20100809
P Written 514 77.8 E 20090630
P Written 464 95.75 E 20100629
P Written 454 44.0766 E 20080630
P Written 405 98.1 A 20100625
P Written 392 131.14 A 20121011
P Written 388 77.2 E 20110627
P Written 337 29.61 E 20080625
P Written 332 75.22 E 20100524
P Written 302 82.55 E 20100517
P Written 290 95.75 E 20100628
P Written 266 94.08 A 20110728
P Written 254 78.6 E 20110707
P Written 236 84.55 E 20110509
P Written 208 95.7 E 20120905
P Written 208 95.7 E 20120905
P Written 203 98.22 E 20120912
P Written 203 98.22 E 20120912
P Written 191 78.5 E 20110630
P Written 191 78.5 E 20110630
P Written 159 94.02 A 20110728
P Written 141 93.6 A 20110728
P Written 138 72.5685 E 20080121
P Written 138 92.66 A 20110728
P Written 115 130.34 A 20121220
P Written 77 129.41 A 20121220
C Written -200 65 A 20081127
P Purchased -203 98.22 E 20120912
P Purchased -208 95.7 E 20120905
C Written -600 110 E 20080227
P Purchased -1000 94 A 20080626
P Purchased -2000 77 A 20111222
C Written -2000 107.89 A 20080124
C Written -2700 59 A 20080423
C Written -3673 54.3931 A 20120628
C Written -4500 135 E 20080327
C Written -4770 42.5 A 20080623
P Purchased -5000 68 A 20101223
C Written -5000 70 A 20080327
C Written -6620 100 A 20080327
C Written -7131 64 A 20090619
P Purchased -10000 130 A 20080327
P Purchased -15000 80 A 20080327
P Purchased -16000 124 A 20080626
P Purchased -17000 126 A 20080626
P Purchased -18000 74 A 20080626
C Written -25000 115.73 A 20080124
C Written -33000 85 A 20111222
P Purchased -44000 72 A 20081218
C Written -50000 122 A 20081218
C Written -50000 150 A 20080626
P Purchased -60000 80 A 20111222
C Written -75000 56.89 A 20090924
P Purchased -76000 75 A 20111222
P Purchased -86000 119.66 A 20080124
P Purchased -93000 100 A 20080327
P Purchased -100000 94 A 20080327
C Written -100000 104 A 20080327
P Purchased -100000 84 A 20080327
C Written -100000 112 A 20080124
P Purchased -100000 110 A 20080327
P Purchased -100000 96 A 20080327
P Purchased -100000 132 A 20080327
P Purchased -112000 68.66 A 20090924
C Written -120000 100 E 20080227
C Written -145000 90 A 20080626
P Purchased -242000 78.46 A 20090924
C Written -416000 120 E 20080326

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

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