Mine Sequencing

Pit swimlanes · Ore type Gantt · Dependencies · NSR per phase · Strip ratio trend

Cu $/% per t

Zn $/% per t

Au $/g per t

Total Ore

47.7 Mt

Total Waste

117.5 Mt

LOM Strip

2.5:1

NSR $/t

$274

Total NSR

$13071M

LOM

16 yr / 7 ph

Phase Schedule — Pit Swimlanes

Harena

Ph1 Prestrip

3200kt W

Ph1 Supergene

4800kt

Ph1 CuPrimary

5400kt

Closure

Rehab

Bisha

Ph2 Prestrip

5000kt W

Ph2 HGZinc

6000kt

Ph2 MGZinc

7500kt

Hambok

Ph3 CuStringer

9000kt

Ph3 GoldStr

3000kt

NorthWest

Ph4 Mixed

12000kt

Supergene

CuStringer

CuPrimary

LGZinc

MGZinc

HGZinc

GoldStr

Mixed

Prestrip

Waste

Rehab

Dependency

Stacked Ore Tonnage by Type

0kt

4647kt

9294kt

13940kt

18587kt

Supergene

CuStringer

CuPrimary

LGZinc

MGZinc

HGZinc

GoldStr

Mixed

Waste

Strip Ratio Trend

0.0

0.8

1.5

2.3

3.0

2.8

2.6

2.4

1.9

2.1

2.2

2.5

2.6

≤2:12-3:1>3:1LOM avg 2.5:1

NSR Value Per Phase (ranked)

Phase	Pit	Ore Type	Ore kt	Cu%	Zn%	Au g/t	NSR $/t	Total $M	Y	Rank
Ph3 GoldStr	Hambok	GoldStr	3,000	0.8	0.4	5	$409	$1227M	7-11	#1
Ph3 CuStringer	Hambok	CuStringer	9,000	3	0.5	0.3	$315	$2831M	6-11	#2
Ph2 HGZinc	Bisha	HGZinc	6,000	0.4	12	0.2	$291	$1746M	4-8	#3
Ph1 CuPrimary	Harena	CuPrimary	5,400	2.5	0.8	0.4	$280	$1509M	3-6	#4
Ph1 Supergene	Harena	Supergene	4,800	2.1	0.3	0.8	$258	$1236M	2-5	#5
Ph4 Mixed	NorthWest	Mixed	12,000	1.5	3.5	0.6	$252	$3018M	9-15	#6
Ph2 MGZinc	Bisha	MGZinc	7,500	0.5	7	0.2	$201	$1504M	5-9	#7

Annual Tonnage and Grade

Year	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Ore kt	-	1200	2550	3750	5250	5550	4800	4800	5314	3814	3814	1714	1714	1714	1714	-
Waste kt	1600	3400	6730	9130	9930	11880	10530	10530	13273	9973	9973	5143	5143	5143	5143	-
Strip	-	2.8:1	2.6:1	2.4:1	1.9:1	2.1:1	2.2:1	2.2:1	2.5:1	2.6:1	2.6:1	3:1	3:1	3:1	3:1	-
Cu%	-	2.10	2.31	1.70	1.36	1.64	1.29	1.29	1.56	1.98	1.98	1.50	1.50	1.50	1.50	-
Zn%	-	0.30	0.56	4.22	5.02	4.82	5.39	5.39	3.29	1.83	1.83	3.50	3.50	3.50	3.50	-
Au g/t	-	0.80	0.59	0.46	0.39	0.28	0.83	0.83	0.90	1.17	1.17	0.60	0.60	0.60	0.60	-

Activity Schedule

Import CSV

Activity	Type	Ore Type	Start	End	Pit	Ore kt	Waste kt	Strip	Cu%	Zn%	Au	Dep
								-:1
								1.5:1
								1.8:1
								-:1
								2.0:1
								2.2:1
								2.5:1
								1.8:1
								3.0:1
								-:1

MINE SEQUENCING · PIT SWIMLANES · DEPENDENCIES · NSR PER PHASE · STRIP TREND