BHP (BHPBF) IRANNOTICE Disclosure regarding Iran Threat Reduction and Syria Human Rights Act

BHP Billiton Limited 171 Collins Street Melbourne Victoria 3000 Australia GPO BOX 86 Melbourne Victoria 3001 Australia Tel +61 1300 55 47 57 Fax +61 3 9609 3015 bhp.com BHP Billiton Plc Nova South 160 Victoria Street London SW1E 5LB UK Tel +44 20 7802 4000 Fax + 44 20 7802 4111 bhp.com

18 September 2018

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Dear Sirs,

Re: Notice of disclosure pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Securities Exchange Act of 1934, as amended, included in Annual Report onForm 20-F for the year ended June 30, 2018 of BHP Billiton Limited and BHP Billiton Plc (together, “BHP”)

Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Securities Exchange Act of 1934, as amended, notice is hereby provided that BHP has made disclosure pursuant to those provisions in Section 7 of its Annual Report onForm 20-F for the year ended June 30, 2018, which was filed with the Securities and Exchange Commission on September 18, 2018.

Sincerely,

/s/ Margaret Taylor

Margaret Taylor

Group Company Secretary