UBS Securities LLC - EPT Disclosure

RNS Number:8558L
UBS Securities LLC
15 January 2008

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

Name of exempt principal trader UBS Securities LLC

Company dealt in Rio Tinto PLC
(ISIN US7672041008)

Class of relevant security to which the
dealings being disclosed relate (Note 1) Ordinary shares dealt in ADR form
ADR (1 ADR = 4 Ords)

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 - - 5044 Ords 0.00
(equivalent
to 1261 ADRs)
(2) Derivatives (other than - - - -
options)
(3) Options and agreements to - - - -
purchase/sell
Total - - 5044 Ods 0.00
(equivalent
to 1261 ADRs)

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

(c) Rights to subscribe (Note 2)
Class of relevant security: Details

3. DEALINGS (Note 3)

(a) Purchases and sales

Buy/Sell ADR Trade Qty Equivalent Trade Price (USD)
Ord Qty
B 181 724 404.86
B 516 2064 405.58
B 900 3600 406.274
B 2938 11752 405.244
B 800 3200 405.655
B 2462 9848 404.592
B 1654 6616 405.189
S 718 2872 403.663
S 500 2000 404.516
S 3033 12132 405.848
S 200 800 404.69
S 837 3348 404.653
S 1025 4100 404.041
S 2957 11828 405.662
Total Buys 9451 37804
Total Sells 9270 37080

(b) Derivatives transactions (other than options)
Product name, e.g Long/short (Note 5) Number of securities Price per unit
CFD (Note 6) (Note 4)

(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

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

(ii) Exercising

Product name, e.g. call Number of securities Exercise price per unit
option (Note 4)

(d) Other dealings (including new securities) (Note 3)

Nature of transaction Details Price per unit (if applicable)
(Note 7)

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.

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

Date of disclosure 15 JANUARY 2008
Contact name Richard Mulcahy
Telephone number 203 719 0467
Name of offeree/offeror with which connected BHP Billiton
Nature of connection (Note 9) Connected Adviser

Notes

The Notes on Form 38.5(b) 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
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