Company announcements

Harmony financial results for the quarter ending March 2007

April 25, 2007

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Harmony Gold Mining Company Ltd (NYSE/NASDAQ: HMY; JSE: HAR) today announced headline earnings improved by 31.8% to 58 cents per share compared with 44 cents per share for the December 2006 quarter and a 48 cents per share loss for the March 2006 quarter.

US$ headline earnings improved by 33.3% from 6 cents per share to 8 cents per share during the March 2007 quarter.

Total operating profit rose 15.1% to R869 million (R755 million) quarter on quarter and is up by 184.0% from R306 million compared with the corresponding period ended March 2006.

The March 2007 net profit was up 6.5% to R247 million compared with the December 2006 quarter considering that the December 2006 had an accounting profit of R236 million which arose from the conversion of Western Areas shares to Gold Fields shares. A loss of R174 million was reported for March 2006.

Fewer total tonnes were milled for the quarter under review. The 6.2% drop in tonnes — from the SA underground operations — to 3 152 000 tonnes compares with 3 361 000 tonnes previously. This was partially countered by the 4.2% higher grades of 5.0g/t from the SA underground operations, which resulted in gold production being only 2.5% lower at 15 655kg (16 066kg). A higher Rand gold price received of R151 833/kg and good cost control translated into a pleasing cash operating profit of R868.5 million, an increase of 15.1% quarter on quarter.

Total cash operating costs were marginally down at R103 608/kg from R104 132/kg previously. The SA underground operations showed strong cost containment with a 2.1% cost reduction to R101 868/kg (R104 056/kg), despite volumes being negatively effected by the end of the year holidays.

The Australian operations reported a decrease in gold production from 60 707oz in the December quarter to 51 697oz. This is ascribed to mining of lower grade at Mt Magnet’s Hesperus Open Pit and from South Kal Mines underground due to temporary ground control issues.

During the quarter 42 000 ounces of hedged forward positions were settled at a cost of AUD11.9 million. These out of the money hedge positions were inherited with the acquisition of Hill 50 Gold NL and had an average strike price of AUD518. During the June quarter an additional 30 000 ounces of hedged positions will come up for settlement. Closure costs of these positions at current prices will amount to approximately AUD10 million.

For more details contact:

Bernard Swanepoel
Chief Executive
+27(0)83 303 9922

Amelia Soares
General Manager, Investor Relations
Tel. + 27 11 684 0146
+27(0)82 654 9241

Lizelle du Toit
Investor Relations Officer
+27(0)82 465 1244