| 33. | COMMITMENTS |
| UNITED STATES DOLLAR | ||||||||||||
| 2017 | 2016 | 2015 | ||||||||||
|
Capital expenditure |
||||||||||||
|
Contracted for |
44.5 | 46.2 | ||||||||||
|
Operating leases2 |
||||||||||||
|
- within one year |
66.6 | 42.5 | ||||||||||
|
- later than one and not later than five years |
257.9 | 229.9 | ||||||||||
|
- later than five years |
448.0 | 277.3 | ||||||||||
|
Guarantees |
||||||||||||
The Group provides environmental obligation guarantees with respect to its South African, Peruvian and Ghanaian operations. These guarantees amounted to US$112.1 million at 31 December 2017 (2016: US$100.1 million) (refer note 25.1).
| 2 | The operating lease commitments consists mainly of power purchase agreements entered into at Tarkwa, Damang, Granny Smith and Gruyere. Included in these amounts are payments for non-lease elements of the arrangement. |