8
Gold Fields Operating update
March 2017 Quarter
Capital expenditure decreased by 5 per cent from A$37 million
(US$28 million) to A$35 million (US$26 million)
due to decreased
expenditure on mine infrastructure, partially offset by increased pre-
stripping cost at Invincible and Neptune pits.
All-in sustaining costs and total all-in cost increased by 6 per cent
from A$1,213 per ounce (US$914 per ounce) in the December
quarter to A$1,280 per ounce (US$966 per ounce) in the March
quarter
due to decreased gold sold, partially offset by lower net
operating costs and capital expenditure.
Agnew/Lawlers
March
2017
Dec
2016
Gold produced
000’oz
58.3
62.2
Yield
g/t
5.89
6.49
AISC and AIC
A$/oz
1,268
1,081
US$/oz
957
815
Gold production decreased by 6 per cent from 62,200 ounces in
the December quarter to 58,300 ounces in the March quarter due
to lower grade ore milled.
Ore mined from underground decreased by 14 per cent from
352,000 tonnes in the December quarter to 301,000 tonnes in the
March quarter
mainly due to the completion of the Genesis 500
stoping area during the December quarter
. Head grade mined
increased by 2 per cent from 6.20 grams per tonne to 6.31 grams
per tonnes.
Tonnes processed increased by 3 per cent from 298,000 tonnes in
the December quarter to 308,000 tonnes in the March quarter
with
some ore stockpiled in the December quarter processed during the
March quarter
. The combined yield decreased by 9 per cent from
6.49 grams per tonne to 5.89 grams per tonne
due to the
preferential treatment of high grade ore in the December quarter
and drawdown of low grade ore stockpiles in the March quarter.
Net operating costs, including gold-in-process movements,
increased by 8 per cent from A$48 million (US$36 million) in the
December quarter to A$52 million (US$39 million) in the March
quarter
mainly due to a A$1 million (US$1 million) gold-in-circuit
charge to cost in the March quarter compared with a A$6 million
(US$4 million) credit to cost in the December quarter, partially offset
by a reduction in mining costs.
Capital expenditure increased by 6 per cent from A$18 million
(US$13 million) to A$19 million (US$14 million)
mainly due to costs
incurred on the establishment of an in-pit tailings facility at the
Songvang pit.
All-in sustaining costs and total all-in cost increased by 17 per cent
from A$1,081 per ounce (US$815 per ounce) in the December
quarter to A$1,268 per ounce (US$957 per ounce) in the March
quarter
due to decreased gold sold, higher capital expenditure and
higher net operating costs.
Granny Smith
March
2017
Dec
2016
Gold produced
000’oz
71.9
67.4
Yield
g/t
4.85
6.37
AISC and AIC
A$/oz
1,153
1,175
US$/oz
871
885
Gold production increased by 7 per cent from 67,400 ounces in
the December quarter to 71,900 ounces in the March quarter
mainly due to increased tonnes processed.
Ore mined from underground increased by 11 per cent from
374,000 tonnes in the December quarter to 415,000 tonnes
due to
increased stope availability in the March quarter
. Head grade
mined decreased by 28 per cent from 6.84 grams per tonne in the
December quarter to 4.94 grams per tonne in the March quarter
with the majority of ore mined from low grade stopes in Zones 90
and 100, in line with the mine schedule, as opposed to mining the
higher grade areas in Zone 90 in the December quarter. Grade
mined for the year is expected to be between 5.50 grams per tonne
and 5.65 grams per tonne.
Tonnes processed increased by 40 per cent from 329,000 tonnes
in the December quarter to 461,000 tonnes in the March quarter
due to increased ore mined from underground, supplemented with
stockpiled ore from the December quarter
. The yield decreased by
24 per cent from 6.37 grams per tonne to 4.85 grams per tonne
reflecting the lower grades mined and lower grades from
stockpiles.
Net operating costs, including gold-in-process movements,
increased by 33 per cent from A$42 million (US$32 million) in the
December quarter to A$56 million (US$42 million) in the March
quarter
mainly due to increased ore tonnes mined and processed.
In
addition, a A$5 million (US$4 million) gold-in-process charge to
cost in the March quarter compared with a A$7 million (US$5
million) credit to cost in the December quarter.
Capital expenditure decreased by 36 per cent from A$36 million
(US$27 million) in the December quarter to A$23 million (US$18
million) in the March quarter
mainly due to higher expenditure
related to the purchase of fleet and underground infrastructure in
the December quarter.
All-in sustaining costs and total all-in cost decreased by 2 per cent
from A$1,175 per ounce (US$885 per ounce) in the December
quarter to A$1,153 per ounce (US$871 per ounce) in the March
quarter
due to the higher gold sold and lower capital expenditure,
partially offset by higher net operating costs.