Rule 8.1 - Rio Tinto plc

FORM 8.1 DEALINGS BY OFFERORS, OFFEREE COMPANIES OR THEIR ASSOCIATES FOR THEMSELVES OR FOR DISCRETIONARY CLIENTS (Rules 8.1(a) and (b)(i) of the Takeover Code) NB: THESE TRANSACTIONS HAVE TAKEN PLACE IN ERROR. THE PANEL EXECUTIVE HAS INFORMED HSBC BANK PLC ON AN EX PARTE BASIS THAT THESE TRANSACTIONS HAVE NO CODE CONSEQUENCES 1. KEY INFORMATION +-------------------------------------------------------------------+ | Name of person dealing (Note 1) | HSBC Private Bank (Suisse) | | | S.A. Hong Kong Branch | |--------------------------------------+----------------------------| | Company dealt in | Rio Tinto Plc ("RIO") | |--------------------------------------+----------------------------| | Class of relevant security to which | Ordinary Shares | | the dealings being disclosed relate | | | (Note 2) | | |--------------------------------------+----------------------------| | Date of dealing | 8-Apr-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 3) +----------------------------------------------------------------------------------------------+ | | Long | Short | | | | | |---------------+-----------------------------+------------------------------------------------| | |Number |Number | | | (%) | (%) | |---------------+-----------------------------+------------------------------------------------| |(1) Relevant |650 shares | | |securities | 0.0001% | | | | | | |---------------+-----------------------------+------------------------------------------------| |(2) Derivatives| | | |(other than | | | |options) | | | | | | | |---------------+-----------------------------+------------------------------------------------| |(3) Options and| | | |agreements to | | | |purchase/sell | | | | | | | |---------------+-----------------------------+------------------------------------------------| |Total |650 | | | |shares | | | |0.0001% | | +----------------------------------------------------------------------------------------------+ (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) +--------------------------------------------------------------------------+ |Class of | Long | Short | |relevant | | | |security: | | | | | | | |---------------+----------------------------+-----------------------------| | |Number |Number | | | (%) | (%) | |---------------+----------------------------+-----------------------------| |(1) Relevant | | | |securities | | | | | | | |---------------+----------------------------+-----------------------------| |(2) Derivatives| | | |(other than | | | |options) | | | | | | | |---------------+----------------------------+-----------------------------| |(3) Options and| | | |agreements to | | | |purchase/sell | | | | | | | |---------------+----------------------------+-----------------------------| |Total | | | | | | | +--------------------------------------------------------------------------+ (c) Rights to subscribe (Note 3) +---------------------------------------+ | Class of relevant security: | Details | | | | |-----------------------------+---------| | | | +---------------------------------------+ 3. DEALINGS (Note 4) (a) Purchases and sales +-------------------------------------------------------------------+ | Purchase/sale | Number of | Price per unit (Note 5) | | | securities | | |---------------------+------------+--------------------------------| | Sale on 8-Apr-08 | 251 | GBP59 (Limit Price at GBP59 | | Sale on 8-Apr-08 | 250 | was set) | | Sale on 8-Apr-08 | 352 | GBP59 (Limit Price at GBP59 | | Sale on 8-Apr-08 | 345 | was set) | | Sale on 8-Apr-08 | 2080 | GBP59 (Limit Price at GBP59 | | Sale on 21-Feb-08 | 302 | was set) | | Sale on 8-Apr-08 | 776 | GBP59 (Limit Price at GBP59 | | Sale on 8-Apr-08 | 656 | was set) | | Sale on 8-Apr-08 | 4183 | GBP59 (Limit Price at GBP59 | | Sale on 8-Apr-08 | 404 | was set) | | Sale on 8-Apr-08 | 221 | GBP56.36 | | Sale on 8-Apr-08 | 1028 | GBP59 (Limit Price at GBP59 | | | | was set) | | | | GBP59 (Limit Price at GBP59 | | | | was set) | | | | GBP59 (Limit Price at GBP59 | | | | was set) | | | | GBP59 (Limit Price at GBP59 | | | | was set) | | | | GBP59 (Limit Price at GBP59 | | | | was set) | | | | GBP59 (Limit Price at GBP59 | | | | was set) | +-------------------------------------------------------------------+ (b) Derivatives transactions (other than options) +-------------------------------------------------------------------+ | Product | Long/short (Note | Number of securities | Price per | | name, | 6) | (Note 7) | unit (Note | | e.g. CFD | | | 5) | |----------+------------------+------------------------+------------| | | | | | | | | | | +-------------------------------------------------------------------+ (c) Options transactions in respect of existing securities (i) Writing, selling, purchasing or varying +------------------------------------------------------------------------------------+ |Product |Writing, |Number of |Exercise|Type, e.g.|Expiry|Option money | |name, |selling, |securities to which|price |American, |date |paid/received | |e.g. call|purchasing, |the option relates | |European | |per unit (Note| |option |varying etc.|(Note 7) | |etc. | |5) | | | | | | | | | |---------+------------+-------------------+--------+----------+------+--------------| | | | | | | | | +------------------------------------------------------------------------------------+ (ii) Exercising +-------------------------------------------------------------------+ | Product name, e.g. | Number of securities | Exercise price per | | call option | | unit (Note 5) | |--------------------+----------------------+-----------------------| | | | | | | | | +-------------------------------------------------------------------+ (d) Other dealings (including new securities) (Note 4) +-------------------------------------------------------------------+ | Nature of transaction | Details | Price per unit (if applicable) | | (Note 8) | | (Note 5) | | | | | |-----------------------+---------+---------------------------------| | | | | | | | | +-------------------------------------------------------------------+ 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. | |-------------------------------------------------------------------| | | | | | | +-------------------------------------------------------------------+ Is a Supplemental Form 8 attached? (Note 9) YES/NO +-------------------------------------------------------------------+ | Date of disclosure | 29-Sep-2008 | |-----------------------------+-------------------------------------| | Contact name | Anne Wong / Stephen Leung | |-----------------------------+-------------------------------------| | Telephone number | 2899-7586 / 2899-6410 | |-----------------------------+-------------------------------------| | Name of offeree/offeror | Rio Tinto Plc ("RIO") and BHP | | with which associated | Billiton Limited ("BHP") | |-----------------------------+-------------------------------------| | Specify category and nature | HSBC are joint financial adviser to | | of associate status (Note | BHP Billiton Plc and BHP Billiton | | 10) | Ltd in their offer for Rio Tinto | | | Plc and Rio Tinto Ltd. BHP Billiton | | | Ltd - ISIN - AU000000BHP4. | +-------------------------------------------------------------------+ Notes The Notes on Form 8.1 can be viewed on the Takeover Panel's website at www.thetakeoverpanel.org.uk ---END OF MESSAGE---