Financial instruments (Tables)
|
12 Months Ended |
Dec. 31, 2025 |
|---|
| Disclosure of detailed information about financial instruments [abstract] |
|
| Disclosure of fair value measurement [Table Text Block] |
| |
|
Dec. 31, 2025 |
|
|
Dec. 31, 2024 |
|
| |
|
FV |
|
|
CV |
|
|
FV |
|
|
CV |
|
| Financial assets at amortized cost |
|
|
|
|
|
|
|
|
|
|
|
|
| Cash and cash equivalents1 |
$ |
568.9 |
|
$ |
568.9 |
|
$ |
541.8 |
|
$ |
541.8 |
|
| Short-term investments1 |
|
- |
|
|
- |
|
|
40.0 |
|
|
40.0 |
|
| Collateral deposits1 |
|
- |
|
|
- |
|
|
0.6 |
|
|
0.6 |
|
| Restricted cash1 |
|
0.2 |
|
|
0.2 |
|
|
0.4 |
|
|
0.4 |
|
| Fair value through profit or loss |
|
|
|
|
|
|
|
|
|
|
|
|
| Trade and other receivables2,3 |
|
347.6 |
|
|
347.6 |
|
|
185.5 |
|
|
185.5 |
|
| Non-hedge derivative assets 4 |
|
0.6 |
|
|
0.6 |
|
|
14.3 |
|
|
14.3 |
|
| Investments at fair value through profit or loss 5 |
|
130.9 |
|
|
130.9 |
|
|
12.1 |
|
|
12.1 |
|
| Total financial assets |
$ |
1,048.2 |
|
$ |
1,048.2 |
|
$ |
794.7 |
|
$ |
794.7 |
|
| Financial liabilities at amortized cost |
|
|
|
|
|
|
|
|
|
|
|
|
| Trade and other payables1, 2 |
$ |
330.5 |
|
$ |
330.5 |
|
$ |
255.2 |
|
$ |
255.2 |
|
| Deferred Copper Mountain acquisition consideration6 |
|
17.5 |
|
|
17.4 |
|
|
- |
|
|
- |
|
| Contingent Copper Mountain acquisition consideration6 |
|
14.1 |
|
|
13.9 |
|
|
- |
|
|
- |
|
| Agreements with communities 7 |
|
107.2 |
|
|
105.9 |
|
|
70.4 |
|
|
68.4 |
|
| Wheaton refund liability8 |
|
13.9 |
|
|
7.9 |
|
|
9.9 |
|
|
7.3 |
|
| Senior unsecured notes 9 |
|
1,022.7 |
|
|
1,010.9 |
|
|
1,111.6 |
|
|
1,111.1 |
|
| Senior secured revolving credit facilities10 |
|
(2.3 |
) |
|
(2.3 |
) |
|
(3.6 |
) |
|
(3.6 |
) |
| Fair value through profit or loss |
|
|
|
|
|
|
|
|
|
|
|
|
| Non-hedge derivative liabilities 4 |
|
31.9 |
|
|
31.9 |
|
|
0.3 |
|
|
0.3 |
|
| Total financial liabilities |
$ |
1,535.5 |
|
$ |
1,516.1 |
|
$ |
1,443.8 |
|
$ |
1,438.7 |
|
|
| Disclosure of detailed information about significant unobservable inputs used in fair value measurement of assets and liabilities [Table Text Block] |
| December 31, 2025 |
|
Level 1 |
|
|
Level 2 |
|
|
Level 3 |
|
|
Total |
|
| Financial assets at FVTPL: |
|
|
|
|
|
|
|
|
|
|
|
|
| Provisionally priced receivables |
$ |
- |
|
$ |
302.2 |
|
$ |
- |
|
$ |
302.2 |
|
| Non-hedge derivatives |
|
- |
|
|
0.6 |
|
|
- |
|
|
0.6 |
|
| Investments |
|
127.9 |
|
|
- |
|
|
3.0 |
|
|
130.9 |
|
| |
$ |
127.9 |
|
$ |
302.8 |
|
$ |
3.0 |
|
$ |
433.7 |
|
| Financial liabilities at FVTPL: |
|
|
|
|
|
|
|
|
|
|
|
|
| Non-hedge derivatives |
$ |
- |
|
$ |
31.9 |
|
$ |
- |
|
$ |
31.9 |
|
| Financial liabilities at amortized cost: |
|
|
|
|
|
|
|
|
|
|
|
|
| Deferred Copper Mountain acquisition consideration |
|
- |
|
|
- |
|
|
17.5 |
|
|
17.5 |
|
| Contingent Copper Mountain acquisition consideration |
|
- |
|
|
- |
|
|
14.1 |
|
|
14.1 |
|
| Agreements with communities |
|
- |
|
|
- |
|
|
107.2 |
|
|
107.2 |
|
| Wheaton refund liability |
|
- |
|
|
- |
|
|
13.9 |
|
|
13.9 |
|
| Senior unsecured notes |
|
1,022.7 |
|
|
- |
|
|
- |
|
|
1,022.7 |
|
| |
$ |
1,022.7 |
|
$ |
31.9 |
|
$ |
152.7 |
|
$ |
1,207.3 |
|
| December 31, 2024 |
|
Level 1 |
|
|
Level 2 |
|
|
Level 3 |
|
|
Total |
|
| Financial assets at FVTPL: |
|
|
|
|
|
|
|
|
|
|
|
|
| Provisionally priced receivables |
$ |
- |
|
$ |
171.3 |
|
$ |
- |
|
$ |
171.3 |
|
| Non-hedge derivatives |
|
- |
|
|
14.3 |
|
|
- |
|
|
14.3 |
|
| Investments |
|
10.6 |
|
|
- |
|
|
1.5 |
|
|
12.1 |
|
| |
$ |
10.6 |
|
$ |
185.6 |
|
$ |
1.5 |
|
$ |
197.7 |
|
| Financial liabilities at FVTPL: |
|
|
|
|
|
|
|
|
|
|
|
|
| Non-hedge derivatives |
$ |
- |
|
$ |
0.3 |
|
$ |
- |
|
$ |
0.3 |
|
| Financial liabilities at amortized cost: |
|
|
|
|
|
|
|
|
|
|
|
|
| Agreements with communities |
|
- |
|
|
- |
|
|
70.4 |
|
|
70.4 |
|
| Wheaton refund liability |
|
- |
|
|
- |
|
|
9.9 |
|
|
9.9 |
|
| Senior unsecured notes |
|
1,111.6 |
|
|
- |
|
|
- |
|
|
1,111.6 |
|
| |
$ |
1,111.6 |
|
$ |
0.3 |
|
$ |
80.3 |
|
$ |
1,192.2 |
|
|
| Disclosure of detailed information about net position of contracts awaiting final pricing [Table Text Block] |
Metal in
concentrate |
|
|
Sales awaiting final pricing |
|
|
Average YTD price ($/unit) |
|
| Unit |
|
Dec. 31, 2025 |
|
|
Dec. 31, 2024 |
|
|
Dec. 31, 2025 |
|
|
Dec. 31, 2024 |
|
| Copper |
pounds (in 000s) |
|
65,791 |
|
|
85,731 |
|
|
5.64 |
|
|
3.96 |
|
| Gold |
troy ounces |
|
33,222 |
|
|
47,075 |
|
|
4,340 |
|
|
2,638 |
|
| Silver |
troy ounces |
|
85,337 |
|
|
238,149 |
|
|
70.22 |
|
|
29.02 |
|
| Zinc |
pounds (in 000s) |
|
8,365 |
|
|
12,102 |
|
|
1.40 |
|
|
1.34 |
|
|
| Disclosure of detailed information about foreign currency risk [Table Text Block] |
| |
|
Dec. 31, 2025 |
|
|
Dec. 31, 2024 |
|
| |
|
CAD1 |
|
|
USD2 |
|
|
PEN3 |
|
|
CAD1 |
|
|
USD2 |
|
|
PEN3 |
|
| Cash |
$ |
8.8 |
|
$ |
36.6 |
|
$ |
10.7 |
|
$ |
6.4 |
|
$ |
13.9 |
|
$ |
3.8 |
|
| Trade and other receivables |
|
0.1 |
|
|
145.7 |
|
|
1.0 |
|
|
0.1 |
|
|
116.4 |
|
|
0.4 |
|
| Restricted cash |
|
- |
|
|
- |
|
|
- |
|
|
0.2 |
|
|
- |
|
|
- |
|
| Other financial assets |
|
98.7 |
|
|
- |
|
|
- |
|
|
12.1 |
|
|
- |
|
|
- |
|
| Trade and other payables |
|
(8.6 |
) |
|
(2.2 |
) |
|
(25.0 |
) |
|
(5.7 |
) |
|
(1.9 |
) |
|
(15.9 |
) |
| Other financial liabilities |
|
- |
|
|
(7.9 |
) |
|
(105.9 |
) |
|
- |
|
|
(7.3 |
) |
|
(68.4 |
) |
| |
$ |
99.0 |
|
$ |
172.2 |
|
$ |
(119.2 |
) |
$ |
13.1 |
|
$ |
121.1 |
|
$ |
(80.1 |
) |
|
| Disclosure of detailed information about sensitivity analysis for foreign currency risk [Table Text Block] |
| December 31, 2025 |
Change of: |
|
Would have changed
2025 after-tax earnings
by:
|
|
| USD/CAD exchange rate1 |
+ 10% |
$ |
1.2 |
|
| USD/CAD exchange rate1 |
-10% |
|
(1.4 |
) |
| USD/PEN exchange rate2 |
+ 10% |
|
7.0 |
|
| USD/PEN exchange rate2 |
-10% |
|
(8.6 |
) |
| December 31, 2024 |
Change of: |
|
Would have changed
2024 after-tax earnings
by:
|
|
| USD/CAD exchange rate1 |
+ 10% |
$ |
6.0 |
|
| USD/CAD exchange rate1 |
-10% |
|
(7.4 |
) |
| USD/PEN exchange rate2 |
+ 10% |
|
4.4 |
|
| USD/PEN exchange rate2 |
-10% |
|
(6.2 |
) |
|
| Disclosure of detailed information about commodity price risk [Table Text Block] |
| December 31, 2025 |
|
Change of: |
|
|
Would have changed 2025 after-tax earnings by: |
|
| Copper prices ($/lb)1 |
+ |
$0.30 |
|
$ |
1.4 |
|
| Copper prices ($/lb)1 |
- |
$0.30 |
|
|
(1.4 |
) |
| Gold prices ($/oz)1 |
+ |
$300 |
|
|
1.8 |
|
| Gold prices ($/oz)1 |
- |
$300 |
|
|
(1.8 |
) |
| Zinc prices ($/lb)1 |
+ |
$0.10 |
|
|
0.5 |
|
| Zinc prices ($/lb)1 |
- |
$0.10 |
|
|
(0.5 |
) |
| December 31, 2024 |
|
Change of: |
|
|
Would have changed
2024 after-tax earnings
by:
|
|
| Copper prices ($/lb)1 |
+ |
$0.30 |
|
$ |
3.4 |
|
| Copper prices ($/lb)1 |
- |
$0.30 |
|
|
(3.5 |
) |
| Gold prices ($/oz)1 |
+ |
$300 |
|
|
- |
|
| Gold prices ($/oz)1 |
- |
$300 |
|
|
- |
|
| Zinc prices ($/lb)1 |
+ |
$0.10 |
|
|
0.1 |
|
| Zinc prices ($/lb)1 |
- |
$0.10 |
|
|
(0.1 |
) |
|
| Disclosure of detailed information about share price risk [Table Text Block] |
| December 31, 2025 |
|
Change of: |
|
|
Would have changed 2025 after-
tax earnings by:
|
|
| Share prices |
+ |
25% |
|
$ |
32.0 |
|
| Share prices |
- |
25% |
|
|
(32.0 |
) |
| December 31, 2024 |
|
Change of: |
|
|
Would have changed 2024 after-tax earnings by: |
|
| Share prices |
+ |
25% |
|
$ |
3.0 |
|
| Share prices |
- |
25% |
|
|
(3.0 |
) |
|
| Disclosure of detailed information about interest rate risk [Table Text Block] |
| December 31, 2025 |
|
Change of: |
|
|
Would have changed 2025 after-tax earnings by: |
|
| Interest rates |
+ |
2.00% |
|
$ |
8.3 |
|
| Interest rates |
- |
2.00% |
|
|
(8.3 |
) |
| December 31, 2024 |
|
Change of: |
|
|
Would have changed 2024 after-tax earnings by: |
|
| Interest rates |
+ |
2.00% |
|
$ |
8.5 |
|
| Interest rates |
- |
2.00% |
|
|
(8.5 |
) |
|
| Disclosure of detailed information about liquidity risk [Table Text Block] |
| Dec. 31, 2025 |
|
Carrying
amount
|
|
|
Contractual
cash flows
|
|
|
Less than
1 Year
|
|
|
1 - 3 Years |
|
|
3 -5 Years |
|
|
More than
5 Years
|
|
| Assets used to manage liquidity risk |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Cash |
$ |
568.9 |
|
$ |
568.9 |
|
$ |
568.9 |
|
$ |
- |
|
$ |
- |
|
$ |
- |
|
| Restricted cash |
|
0.2 |
|
|
0.2 |
|
|
0.2 |
|
|
- |
|
|
- |
|
|
- |
|
| Trade and other receivables |
|
347.6 |
|
|
347.6 |
|
|
347.6 |
|
|
- |
|
|
- |
|
|
- |
|
| Non-hedge derivative assets |
|
0.6 |
|
|
0.6 |
|
|
0.6 |
|
|
- |
|
|
- |
|
|
- |
|
| |
$ |
917.3 |
|
$ |
917.3 |
|
$ |
917.3 |
|
$ |
- |
|
$ |
- |
|
$ |
- |
|
| Non-derivative financial liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Trade and other payables |
$ |
(330.5 |
) |
$ |
(330.5 |
) |
$ |
(330.5 |
) |
$ |
- |
|
$ |
- |
|
$ |
- |
|
| Deferred Copper Mountain acquisition consideration |
|
(17.4 |
) |
$ |
(21.0 |
) |
|
(3.0 |
) |
|
(6.0 |
) |
|
(6.0 |
) |
|
(6.0 |
) |
| Contingent Copper Mountain acquisition consideration |
|
(13.9 |
) |
$ |
(18.8 |
) |
|
- |
|
|
- |
|
|
(7.5 |
) |
|
(11.3 |
) |
| Agreements with communities 1 |
|
(105.9 |
) |
|
(136.7 |
) |
|
(67.0 |
) |
|
(12.3 |
) |
|
(9.2 |
) |
|
(48.2 |
) |
| Senior unsecured notes |
|
(1,010.9 |
) |
|
(1,141.8 |
) |
|
(516.4 |
) |
|
(66.4 |
) |
|
(559.0 |
) |
|
- |
|
| Wheaton refund liability |
|
(7.9 |
) |
|
(79.2 |
) |
|
- |
|
|
- |
|
|
- |
|
|
(79.2 |
) |
| |
$ |
(1,486.5 |
) |
$ |
(1,728.0 |
) |
$ |
(916.9 |
) |
$ |
(84.7 |
) |
$ |
(581.7 |
) |
$ |
(144.7 |
) |
| Derivative financial liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Non hedge derivative contracts |
$ |
(31.9 |
) |
$ |
(31.9 |
) |
$ |
(31.9 |
) |
$ |
- |
|
$ |
- |
|
$ |
- |
|
| |
$ |
(31.9 |
) |
$ |
(31.9 |
) |
$ |
(31.9 |
) |
$ |
- |
|
$ |
- |
|
$ |
- |
|
| Dec. 31, 2024 |
|
Carrying
amount
|
|
|
Contractual
cash flows
|
|
|
Less than
1 Year
|
|
|
1 - 3 Years |
|
|
3 -5 Years |
|
|
More than
5 Years
|
|
| Assets used to manage liquidity risk |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Cash |
$ |
541.8 |
|
$ |
541.8 |
|
$ |
541.8 |
|
$ |
- |
|
$ |
- |
|
$ |
- |
|
| Short-term investments |
|
40.0 |
|
|
40.0 |
|
|
40.0 |
|
|
|
|
|
|
|
|
|
|
| Collateral deposits |
|
0.6 |
|
|
0.6 |
|
|
0.6 |
|
|
|
|
|
|
|
|
|
|
| Restricted cash |
|
0.4 |
|
|
0.4 |
|
|
0.4 |
|
|
- |
|
|
- |
|
|
- |
|
| Trade and other receivables |
|
185.5 |
|
|
185.5 |
|
|
185.5 |
|
|
- |
|
|
- |
|
|
- |
|
| Non-hedge derivative assets |
|
14.3 |
|
|
14.3 |
|
|
14.3 |
|
|
- |
|
|
- |
|
|
- |
|
| |
$ |
782.6 |
|
$ |
782.6 |
|
$ |
782.6 |
|
$ |
- |
|
$ |
- |
|
$ |
- |
|
| Non-derivative financial liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Trade and other payables |
$ |
(255.2 |
) |
$ |
(255.2 |
) |
$ |
(255.2 |
) |
$ |
- |
|
$ |
- |
|
$ |
- |
|
| Agreements with communities 1 |
|
(68.4 |
) |
|
(99.0 |
) |
|
(26.1 |
) |
|
(17.0 |
) |
|
(8.3 |
) |
|
(47.6 |
) |
| Senior unsecured notes |
|
(1,111.1 |
) |
|
(1,305.7 |
) |
|
(59.1 |
) |
|
(654.4 |
) |
|
(592.2 |
) |
|
- |
|
| Wheaton refund liability |
|
(7.3 |
) |
|
(79.2 |
) |
|
- |
|
|
- |
|
|
- |
|
|
(79.2 |
) |
| |
$ |
(1,442.0 |
) |
$ |
(1,739.1 |
) |
$ |
(340.4 |
) |
$ |
(671.4 |
) |
$ |
(600.5 |
) |
$ |
(126.8 |
) |
| Derivative financial liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Non hedge derivative contracts |
$ |
(0.3 |
) |
$ |
(0.3 |
) |
$ |
(0.3 |
) |
$ |
- |
|
$ |
- |
|
$ |
- |
|
| |
$ |
(0.3 |
) |
$ |
(0.3 |
) |
$ |
(0.3 |
) |
$ |
- |
|
$ |
- |
|
$ |
- |
|
|