The estimated fair values of the Group’s financial assets and liabilities are:
| 2017 | 2016 | |||||||||||||||
| Carrying amount US$ million |
Fair value US$ million |
Carrying amount US$ million |
Fair value US$ million |
|||||||||||||
|
Financial assets |
||||||||||||||||
|
Cash and cash equivalents |
479.0 | 479.0 | 526.7 | 526.7 | ||||||||||||
|
Trade and other receivables |
66.5 | 66.5 | 68.5 | 68.5 | ||||||||||||
|
Gold and oil derivative contracts |
25.0 | 25.0 | — | — | ||||||||||||
|
Environmental trust fund |
55.5 | 55.5 | 44.5 | 44.5 | ||||||||||||
|
Investments |
104.6 | 104.6 | 19.7 | 19.7 | ||||||||||||
|
Financial liabilities |
||||||||||||||||
|
Trade and other payables |
451.0 | 451.0 | 459.3 | 459.3 | ||||||||||||
|
Borrowings |
1,587.9 | 1,611.5 | 1,504.9 | 1,496.7 | ||||||||||||
|
Current portion of borrowings |
193.6 | 193.6 | 188.0 | 188.0 | ||||||||||||
|
Copper derivative contracts |
3.3 | 3.3 | — | — | ||||||||||||
|
South Deep dividend |
6.4 | 6.4 | 6.4 | 6.4 | ||||||||||||