By: Rocky Lumbanradja B.Eng, Dip Bus, MAusIMM, CP (Mining)

• Rocky Lumbanradja is a Lead Strategic Planning of BHP Billiton Australia with 20 yrs experience working in mining industry.
• This presentation is to share the understanding of current JORC practices to the best knowledge and experience that the presenter has.
• While Rocky Lumbanradja is a full time employee of BHP Billiton this presentation should not be taken as
  necessarily representing the company and other institutions