28.

CASH GENERATED BY OPERATIONS


	UNITED STATES DOLLAR
	2017			2016			2015
(Loss)/profit from continuing operations		(20.8	)		167.9			(239.6	)
Mining and income taxation		173.2			189.5			248.5
Royalties		62.0			78.4			73.9
Interest expense		91.2			82.5			87.8
Interest received		(5.1	)		(7.3	)		(5.9	)
Amortisation and depreciation		748.1			671.4			591.5
Interest expense - environmental rehabilitation		12.1			10.7			11.7
Non-cash rehabilitation income		(13.5	)		(9.7	)		(14.6	)
Interest received - environmental trust funds		(0.5	)		(1.0	)		(0.4	)
Impairment, net of reversal of impairment of investments and assets		200.2			76.5			206.9
Write-off of exploration and evaluation assets		51.5			41.4			29.1
(Profit)/loss on disposal of assets		(4.0	)		(48.0	)		0.1
Profit on disposal of investments		—			(2.3	)		(0.1	)
Share-based payments		26.8			14.0			10.7
Long-term incentive plan expense		5.0			10.5			5.1
Payment of long-term incentive plan		(11.5	)		—			—
Borrowing costs capitalised		(22.9	)		(15.1	)		(16.6	)
Share of results of equity-accounted investees, net of taxation		(0.3	)		—			2.4
Other		(5.0	)		(14.0	)		(7.9	)

Total cash generated by operations		1,286.5			1,245.4			982.6

Refer note 40 for further details.

This relates to the Peruvian copper derivative contracts. Refer note 37 for further details.