Mineral resources and Mineral reserves

The company’s total attributable gold equivalent mineral resource of 104.3Moz was declared as at 30 June 2017, a 0.9% decrease year-on-year from the 105.2Moz declared on 30 June 2016. Gold contained in the mineral resources at the South African operations represented 53.2% of Harmony’s total, with the Papua New Guinea assets representing 46.8% of total gold and gold equivalent mineral resources as at 30 June 2017.

Harmony’s total attributable gold and gold equivalent mineral reserves amounted to 36.7Moz of gold, a 0.5% decrease on the 36.9Moz declared at 30 June 2016. Gold reserve ounces at our South African operations accounted for 44.3% while the Papua New Guinea gold and gold equivalent ounces represented 55.7% of Harmony’s total mineral reserves as at 30 June 2017.

Mineral resources

As at 30 June 2017, attributable gold equivalent mineral resources were 104.3Moz, down from 105.2Moz in June 2016. The following table shows the year-on-year reconciliation of the mineral resources.

Gold and gold equivalent mineral resources reconciliationTonnesMoz
June 2016 – Gold and gold equivalents 3 271 105.2
Changes during FY17:    
Mined (44) (1.4)
Geological changes and Hidden Valley 100% 30 1.0
Gold equivalents (14) (0.5)
June 2017 – Gold and gold equivalents 3 243 104.3

Mineral reserves

As at 30 June 2017, Harmony's attributable gold equivalent mineral reserves were 36.9Moz, down from 42.6Moz. The year-on-year mineral reserves reconciliation is shown below.

Gold and gold equivalent mineral reserves reconciliationTonnesMoz
June 2016 – Gold and gold equivalents 1 148 36.9
Changes during FY17:    
Mined (36) (1.2)
Life of mine extensions and Hidden Valley 100% 42 1.3
Gold equivalents (11) (0.3)
June 2017 – Gold and gold equivalents 1 143 36.7

The detailed FY17 Reserves and resources statement can be downloaded at www.har.co.za/17.