Rimfire Pacific Mining NL is engaged in the exploration and development of mineral deposits. The Company is focused on Fifield Platinum Project in and Sorpresa gold and silver Projects in New South Wales. Its Fifield Platinum Project comprises exploration licenses EL7959, EL5534, EL5565, EL6241, EL7058, and interest in EL5958, as well as Mining Leases M(C)L 305 and M(C)L 306. It has established multiple project areas of focus, including hard rock gold (Au), silver (Ag), copper (Cu) and platinum (Pt) within a six-kilometer (km) radius of the Sorpresa discovery covering a prospective 35-square kilometer area at Fifield. Its Sorpresa gold and silver Project is located immediately south of the Township of Fifield, New South Wales and resides within Lachlan-Cadia Lineament mineral corridor. Its Sorpresa deposit has been defined with over 320 drill holes for approximately 28,900 meters and is a mixture of oxide and primary mineralization.