Copper Update - Agreement with Guyana Goldfields BHP Billiton Plc Registration number 3196209 Registered in England and Wales Share code: BIL ISIN: GB0000566504 NEWS RELEASE Release Time IMMEDIATE Date 5 September 2018 Release Number 15/18 Copper Update – Agreement with Guyana Goldfields Inc BHP has entered into an agreement with Guyana Goldfields Inc. (Guyana) to acquire its 6.1 per cent interest in SolGold Plc (SolGold), the majority owner and operator of the Cascabel porphyry copper-gold project in Ecuador. BHP Chief Executive Officer, Andrew Mackenzie, said the investment in SolGold would give BHP exposure to a high quality copper exploration project in Ecuador, which is a highly prospective location for BHP. “Consistent with our positive long-term outlook, copper is a key exploration focus for BHP as we seek to replenish our resource base and grow this important business.” Under the terms of the agreement with Guyana, BHP will acquire 103.1 million shares in SolGold. SolGold is listed on the London Stock Exchange (LSE) and the Toronto Stock Exchange. The purchase price payable by BHP is 26.592 pence per SolGold share, representing a 20 per cent premium to the 20 day volume-weighted average LSE price of 22.16 pence per share as determined on 4 September 2018. Further information on BHP can be found at bhp.com Sponsor: UBS South Africa (Pty) Limited Media Relations Investor Relations Email: media.relations@bhpbilliton.com Email: investor.relations@bhpbilliton.com Australia and Asia Australia and Asia Ben Pratt Tara Dines Tel: +61 3 9609 3672 Mobile: +61 419 968 734 Tel: +61 3 9609 2222 Mobile: + 61 499 249 005 United Kingdom and South Africa United Kingdom and South Africa Neil Burrows Elisa Morniroli Tel: +44 20 7802 7484 Mobile: +44 7786 661 683 Tel: +44 20 7802 7611 Mobile: +44 7825 926 646 North America Americas Judy Dane James Wear Tel: +1 713 961 8283 Mobile: +1 713 299 5342 Tel: +1 713 993 3737 Mobile: +1 347 882 3011 BHP Billiton Limited ABN 49 004 028 077 BHP Billiton Plc Registration number 3196209 LEI WZE1WSENV6JSZFK0JC28 LEI 549300C116EOWV835768 Registered in Australia Registered in England and Wales Registered Office: Level 18, 171 Collins Street Registered Office: Nova South, 160 Victoria Street Melbourne Victoria 3000 Australia London SW1E 5LB United Kingdom Tel +61 1300 55 4757 Fax +61 3 9609 3015 Tel +44 20 7802 4000 Fax +44 20 7802 4111 Members of the BHP Group which is headquartered in Australia Follow us on social media Date: 05/09/2018 07:05:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.