REG-ABN AMRO BANK N.V. EPT Disclosure

LONDON--(Business Wire)--

FORM 38.5(b)

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

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Name of exempt principal trader ABN AMRO Equities Australia Limited
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Company dealt in BHP Billiton Ltd
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Class of relevant security to which the Ordinary Shares
dealings being disclosed relate (Note 1)
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Date of dealing 30 July 2008
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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)

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Long Short
------------------------------------------ ------------------------------- ---------------------------------
Number (%) Number (%)
------------------------------------------ ------------------------------- ---------------------------------
(1) Relevant securities 3,985,744 0.118761836 2211183 0.0658859
------------------------------------------ --------------- --------------- ---------------- ----------------
(2) Derivatives (other than options) 1,356,724 0.040425836 1692661 0.0504356
------------------------------------------ --------------- --------------- ---------------- ----------------
(3) Options and agreements to
purchase/sell 1,080,162 0.032185214 1508000 0.0449334
------------------------------------------ --------------- --------------- ---------------- ----------------
Total 6,422,630 0.191372885 5411844 0.1612548
------------------------------------------ --------------- --------------- ---------------- ----------------
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(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 2)

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Class of relevant security: Long Short
------------------------------------------ ------------------------------ --------------------------------
Number (%) Number (%)
------------------------------------------ ------------------------------ --------------------------------
(1) Relevant securities 0 (0%) 0 (0%)
------------------------------------------ ------------------------------ --------------------------------
(2) Derivatives (other than options) 0 (0%) 0 (0%)
------------------------------------------ ------------------------------ --------------------------------
(3) Options and agreements to
purchase/sell 0 (0%) 0 (0%)
------------------------------------------ ------------------------------ --------------------------------
Total 0 (0%) 0 (0%)
------------------------------------------ ------------------------------ --------------------------------
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(c) Rights to subscribe (Note 2)

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Class of relevant security: Details
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3. DEALINGS (Note 3)

(a) Purchases and sales

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Purchases Number of securities Price per unit (AUD)
Purchase 2165 38.85
Purchase 2244 38.86
Purchase 7846 38.87
Purchase 4341 38.88
Purchase 4781 38.89
Purchase 2068 38.9
Purchase 9586 38.91
Purchase 1350 38.92
Purchase 1414 38.93
Purchase 3136 38.94
Purchase 19162 38.95
Purchase 29000 38.958
Purchase 421 38.96
Purchase 4148 38.97
Purchase 7420 38.98
Purchase 2893 38.99
Purchase 21923 39
Purchase 11850 39.01
Purchase 22027 39.02
Purchase 7571 39.03
Purchase 3483 39.04
Purchase 3179 39.05
Purchase 7990 39.06
Purchase 5393 39.07
Purchase 8398 39.08
Purchase 4649 39.09
Purchase 2225 39.1
Purchase 2819 39.11
Purchase 4119 39.12
Purchase 2269 39.13
Purchase 2957 39.14
Purchase 11640 39.15
Purchase 4056 39.16
Purchase 2379 39.17
Purchase 3158 39.18
Purchase 4696 39.19
Purchase 7953 39.2
Purchase 7207 39.21
Purchase 6063 39.22
Purchase 6132 39.23
Purchase 8308 39.24
Purchase 9290 39.25
Purchase 14996 39.26
Purchase 4360 39.27
Purchase 1956 39.28
Purchase 4951 39.29
Purchase 12053 39.3
Purchase 3060 39.31
Purchase 4749 39.32
Purchase 359 39.34
Purchase 425 39.35
330618
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Sales Number of securities Price per unit (AUD)
Sale 1650 38.92
Sale 5000 38.95
Sale 29000 38.958
Sale 3594 38.96
Sale 10036 38.99
Sale 1631 39.01
Sale 865 39.04
Sale 1230 39.08
Sale 5500 39.09
Sale 209 39.12
Sale 1683 39.15
Sale 1213 39.18
Sale 2000 39.19
Sale 2704 39.2
Sale 800 39.22
Sale 2384 39.23
Sale 9241 39.24
Sale 2950 39.25
Sale 92624 39.26
Sale 200 39.27
Sale 1100 39.28
Sale 3000 39.29
Sale 200 39.31
Sale 46 39.33
Sale 200 39.34
Sale 1300 39.35
180360
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(b) Derivatives transactions (other than options)

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Product name, Long/short (Note 5) Number of securities (Note 6) Price per unit (Note 4) AUD
e.g. CFD
---------------------- --------------------- -------------------------------- -----------------------------
BHPKZL Long (buy) 30000 5.16
---------------------- --------------------- -------------------------------- -----------------------------
BHPKZL Short (sell) 3000 5.13
---------------------- --------------------- -------------------------------- -----------------------------
BHPKZL Short (sell) 2000 5.15
---------------------- --------------------- -------------------------------- -----------------------------
BHPIZY Long (buy) 1746 12.79
---------------------- --------------------- -------------------------------- -----------------------------
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(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

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

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Product name, e.g. call option Number of securities Exercise price per unit (Note 4)
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(d) Other dealings (including new securities) (Note 3)

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Nature of transaction (Note 7) Details Price per unit (if applicable) (Note
4)
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4. OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

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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.
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Is a Supplemental Form 38.5(b) attached? (Note 8) YES/NO

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Date of disclosure 31 July 2008
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Contact name Oliver Bainbridge - Kirit Devshi
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Telephone number (020) 7678 5898
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Name of offeree/offeror with which connected RIO TINTO
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Nature of connection (Note 9) Advisor
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Notes: The Notes on Form 38.5(b) can be viewed on the Takeover Panel's website
at www.thetakeoverpanel.org.uk

SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS

(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as
appropriate)

OPEN POSITIONS (Note 1)

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Product name, Written or Number of Exercise price Type, e.g. Expiry date
e.g. call option purchased securities to (Note 2) American,
which the option European
or derivative etc.
relates
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Sep 08 Put Written 15000 39.00 American 25/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Aug 08 Put Purchased 100,000 35.00 American 28/8/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Sep 08 Call Purchased 943,000 0.01 European 25/09/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Dec 08 Call Written 1,300,000 0.01 European 21/12/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Dec 08 Call Written 100,000 0.01 European 21/12/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Aug 08 Put Purchased 3,000 38.00 American 28/8/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Aug 08 Put Purchased 1,000 38.00 American 28/8/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Aug 08 Put Purchased 4,000 38.00 American 28/8/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------

------------------------ ------------- ----------------- --------------- ------------- ---------------------
Jun 08 Put Written 11,563 35.06 European 30/06/2008
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Jul 09 Put Written 12,824 38.99 European 1/07/2009
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Jul 09 Call Purchased 12,824 50.69 European 1/07/2009
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Jun 09 Put Written 21,514 46.48 European 26/06/2009
------------------------ ------------- ----------------- --------------- ------------- ---------------------
Jun 10 Put Written 75,000 17.00 American 30/06/2010
------------------------ ------------- ----------------- --------------- ------------- ---------------------

------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Short 13,990 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Short 10,520 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Short 310 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Short 2,970 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Short 2,340 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Short 630 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Short 4,190 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Long 327,792 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
BHP Swap Long 1,022,208 5/9/08
------------------------ ------------- ----------------- --------------- ------------- ---------------------
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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 Rule 8 and its
Notes which can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk

ABN AMRO BANK N.V.

Copyright Business Wire 2008