Note 8 - Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2026

Table Text Block [Abstract]

Schedule of Foreign Exchange Contracts, Statement of Financial Position

As of June 30, 2026 and December 31, 2025, we recorded the following balances for the fair value of the forward contracts (in millions):

	June 30,	December 31,
Balance sheet line item:	2026	2025
Other current assets	$0.3	$1.1
Other current liabilities	2.1	(0.8)

Schedule of Notional Amounts of Outstanding Derivative Positions

The following tables summarize the quantities of metals committed under forward metals contracts at June 30, 2026 and December 31, 2025 which are designated and accounted for as cash flow hedges:

June 30, 2026	Pounds under contract (in 000's)				Average price per pound
	Zinc		Lead		Zinc		Lead
	(pounds)		(pounds)		(pounds)		(pounds)
Contracts on provisional sales
2026 settlements		23,920		15,432	$	1.37	$	1.02
Contracts on forecasted sales
2026 settlements		18,574		8,818	$	1.32	$	0.98
2027 settlements		53,242		—	$	1.41	$	—

December 31, 2025	Pounds under contract (in 000's)				Average price per ounce/pound
	Zinc		Lead		Zinc		Lead
	(pounds)		(pounds)		(pounds)		(pounds)
Contracts on provisional sales
2026 settlements		18,850		13,117	$	1.37	$	1.05
Contracts on forecasted sales
2026 settlements		53,407		42,108		1.33		1.02
2027 settlements		23,810		—		1.36	N/A

The following table summarizes the quantities of silver and gold ounces committed under collars at June 30, 2026.

Settlement Period

Ounces under contract

Average strike price per silver ounce

Average strike price per gold ounce

Silver (ounces)

Gold (ounces)

Minimum ($)

Maximum ($)

Minimum ($)

Maximum ($)

Contracts on provisional sales

2026 settlements

475,000

370

72.60

82.35

4,600.00

4,900.00

The following table summarizes the quantities of metals for which we have entered into put contracts and the strike price as of June 30, 2026:

Settlement Period	Production Protected (in 000's)		Strike price per ounce
	Silver (ounces)		($)
Contracts on forecasted sales
2026 settlements		6,767		50.00

Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location

We recorded the following balances for the fair value of our metals price contracts as of June 30, 2026 and December 31, 2025 (in millions):

	June 30,	December 31,
Balance sheet line item:	2026	2025
Other current assets	$10.4	$8.6
Other non-current assets	—	7.2
Other current liabilities	(7.6)	(36.4)
Other non-current liabilities	(4.5)	(1.9)