Delivering organic growth by developing our reserves and resources is one of the three pillars of our strategy. Between 2009 and 2011, we invested about US$220m in exploration and evaluation.
Our investment has delivered significant successes. We have:
- increased the reserves and resources at our mines
- identified the Gross deposit, with more than 5.7 Moz of resources
- more than doubled resources at Bissa to 2.9 Moz, and
- built a portfolio of opportunities, with the potential to significantly increase our resource base.
At 1 June 2011, our proven and probable reserves stood at nearly 8.2 Moz of gold.
Proven and Probable Reserves (‘000 ounces)
| Burkina Faso | 2,186 |
| Guinea | 3,620 |
| Kazakhstan | 488 |
| Russia | 1,899 |
| Total | 8,193 |
At 1 November 2010, we had measured and indicated resources of 12.0 Moz and inferred resources of 10.6 Moz, giving us total resources of 22.6 Moz.
Measured, Indicated and Inferred Resources (‘000 ounces)
| | Measured and indicated | Inferred | Total |
| Burkina Faso | 3,315 | 1,175 | 4,490 |
| Guinea | 4,614 | 1,090 | 5,704 |
| Kazakhstan | 1,043 | 1,418 | 2,461 |
| Russia | 3,071 | 6,924 | 9,995 |
| Total | 12,042 | 10,608 | 22,650 |