Palabora Mining Company

Rio Tinto PLC 08 August 2003 Rio Tinto's 49.2 per cent owned subsidiary, Palabora Mining Company, issued the following news release in Johannesburg. Palabora Mining Company Rights Offer - finalisation information 1. Introduction It was announced on 29 July 2003 that the directors of the company had resolved to proceed with a rights offer of 849 465 floating rate partially subordinated unsecured redeemable convertible debentures ('convertible debentures') to its shareholders based on their shareholdings at the close of business on Friday, 22 August 2003 ('the record date'). 2. Results of general meeting The directors announce that, at the general meeting of shareholders held on 16 July 2003, the special resolutions to: - amend the company's Articles of Association to cater for the issue of convertible securities; and - increase the authorised share capital of the company, were passed by the requisite majority. The special resolutions have been registered by the Registrar of Companies. 3. The purpose of the rights offer The purpose of the rights offer is to raise approximately R849 million (before expenses), which will be utilised to service existing debt commitments as well as to allow completion of the underground project and other fixed capital commitments, including enhancements to various plants. 4. Salient terms of the rights offer Number of convertible debentures to be offered: 849 465 Ratio of entitlement: 3 convertible debentures for every 100 ordinary shares held on the record date. Rights offer price per convertible debenture: R1 000 Interest payments: Semi-annual interest payments in arrears fixed for each six months at JIBAR plus 5%. Final maturity date: Monday, 18 September 2006. Conversion: Convertible into 33.33333 ordinary shares per convertible debenture after the second anniversary of the issue date but before the final maturity date at the option of the debenture holder provided that no redemption notice has been issued. Redemption: Redeemable at par in whole (to the extent that conversion has not taken place) but not in part at the option of the company at any time after the first anniversary of issue. The company shall fully redeem at par all outstanding convertible debentures on the final maturity date. Shareholders of the company holding less than 100 ordinary shares on the record date will be entitled to participate in the rights offer in terms of a table of entitlement to be included in the rights offer circular to be sent to shareholders. 5. Listing on the JSE Securities Exchange South Africa ('JSE') The JSE has granted listings for: - the 849 465 renounceable (nil paid) letters of allocation (JSE code PAMN, ISIN ZAE000048625) to be issued pursuant to the rights offer from the commencement of business on Monday, 18 August 2003 until the close of business on Friday, 5 September 2003; and - 849 465 convertible debentures (JSE code PAMD, ISIN ZAE000048633) from the commencement of business on Monday, 8 September 2003. 6. Conditions precedent All the conditions precedent to the rights offer have been fulfilled. 7. Underwriting The rights offer has been underwritten by the company's major beneficial shareholder, Rio Tinto plc and sub-underwritten in respect of 36.79 per cent of the total underwriting commitment by Anglo American plc, through their nominated subsidiaries. 8. Salient dates and times The salient dates and times for the rights offer are as follows: 2003 Last day to trade in order to settle by the record date and to qualify to participate in the rights offer (cum rights) on Friday, 15 August Ordinary shares commence trading ex-rights on the JSE at the commencement of business on Monday, 18 August Listing of and dealing in the letters of allocation commences at the commencement of business on Monday, 18 August Record date for purposes of determining the shareholders entitled to participate in the rights offer at the close of business on Friday, 22 August Rights offer opens at the commencement of business on Monday, 25 August Dematerialised shareholders will have their safe custody accounts at their CSDP or broker automatically credited with their entitlement on Monday, 25 August Certificated shareholders will have their entitlements credited to a safe custody account at the transfer secretaries on Monday, 25 August Circular and form of instruction posted to certificated shareholders recorded on the record date on Monday, 25 August Circular and rights entitlement issued to CSDP or broker of dematerialised shareholders on Monday, 25 August Last day for trading in letters of allocation on the JSE in order to settle by the record date at the close of business on Friday, 5 September Listing of convertible debentures on the JSE at the commencement of business on Monday, 8 September Rights offer closes at 14:30, payment to be made and form of instruction lodged by certificated shareholders or their renounces by that time on (see note 2) Friday, 12 September Record date for letters of allocation at the close of business on Friday, 12 September Entitlements in terms of the rights offer available / posted on Monday, 15 September Refund cheques, if applicable, posted to certificated shareholders in respect of unsuccessful excess applications on Monday, 15 September CSDP/broker accounts credited with convertible debentures and debited with any payments due on Monday, 15 September Results of rights offer announced on SENS on or about Monday, 15 September Results of rights offer published in the press on or about Tuesday, 16 September Notes 1. The above dates and times are subject to change. Any such change will be announced in the press and on SENS. All times referred to are local times in the RSA. 2. Dematerialised shareholders are required to notify their duly appointed CSDP or broker of their acceptance of the rights offer in the manner and by the time stipulated in the agreement governing the relationship between the shareholder and his CSDP or broker. 3. Share certificates may not be dematerialised or rematerialised between Monday, 18 August 2003 and Friday, 22 August 2003, both days inclusive. 4. CSDPs effect payment in respect of dematerialised shareholders on a delivery versus payment method. 9. Letters of allocation Letters of allocation can only be traded in dematerialised form and accordingly the company will issue all letters of allocation in dematerialised form. The electronic record for certificated shareholders will be maintained by Computershare Nominees (Proprietary) Limited to afford certificated shareholders the same rights and opportunities as dematerialised shareholders. Dematerialised shareholders entitled to participate in the rights offer must make the necessary arrangements through their CSDP or broker regarding their acceptance or otherwise of the rights offer in terms of the agreement entered into between the dematerialised shareholder and the CSDP or broker. 10. Documentation A circular, giving full details of the rights offer, will be posted to shareholders on Monday, 25 August 2003. Copies of the circular, in English, will be available for inspection from Friday, 15 August 2003 during normal business hours (Saturdays, Sundays and public holidays excepted) from: - the registered office of the company, 1 Copper Road, Phalaborwa; - the office of Barnard Jacobs Mellet Corporate Finance (Pty) Limited, 5 Sturdee Avenue, Rosebank; - the office of Standard Corporate and Merchant Bank, 3 Simmonds Street, Johannesburg; - the office of Webber Wentzel Bowens, 10 Fricker Road, Illovo Boulevard, Johannesburg; - the company's transfer secretaries, Computershare Limited, Ground Floor, 70 Marshall Street, Johannesburg. For further information, please contact: LONDON AUSTRALIA Media Relations Media Relations Lisa Cullimore Ian Head Office: +44 (0) 20 7753 2305 Office: +61 (0) 3 9283 3620 Mobile: +44 (0) 7730 418 385 Mobile: +61 (0) 408 360 101 Investor Relations Investor Relations Peter Cunningham Dave Skinner Office: +44 (0) 20 7753 2401 Office: +61 (0) 3 9283 3628 Mobile: +44 (0) 7711 596 570 Mobile: +61 (0) 408 335 309 Richard Brimelow Daphne Morros Office: +44 (0) 20 7753 2326 Office: +61 (0) 3 9283 3639 Mobile: +44 (0) 7753 783 825 Mobile: +61 (0) 408 360 764 Website: www.riotinto.com This information is provided by RNS The company news service from the London Stock Exchange

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