HECLA MINING CO/DE/ Segments Disclosure

Note 4: Business Segments, Sales of Products and Significant Customers

We discover, acquire and develop mines and other mineral interests and produce and market (i) concentrates containing silver, gold, lead, zinc and copper (ii) carbon material containing silver and gold, and (iii) doré containing silver and gold. We are currently organized and managed in four segments: Greens Creek, Lucky Friday, Keno Hill and Casa Berardi.

The Company regularly reviews its segment reporting for alignment with its strategic goals and operational structure as well as for evaluation of business performance and the allocation of resources by Hecla's President and Chief Executive Officer, who has been identified as our Chief Operating Decision Maker . The CODM evaluates the performance for all of our reportable segments based on segment gross profit or loss. For all segments, the CODM uses segment gross profit or loss to assess segment performance and allocate resources for each segment predominantly in the annual budget and forecasting process. The CODM considers budget to actual variances on a monthly basis when making decisions about allocating capital and personnel to the segments. Significant segment expenses that are components of total cost of goods sold and drive the financial performance of our reportable segments are (i) salaries, wages and other benefits, (ii) contractors, (iii) materials and consumables (iv) change in product inventory and (v) other direct production costs. In further evaluating the operational performance of each segment, the CODM also considers the amount of metals production versus budget, and the grade of the metal processed. Intersegment sales are transacted on the same basis as sales to third parties.

General corporate activities not associated with operating mines and their various exploration activities, as well as idle properties and environmental remediation services in the Yukon, Canada, are presented as “other.” The nature of the items that reconcile gross profit (loss) to income (loss) before income and mining taxes are not related to our reportable segments.

Casa Berardi's income from operations for 2025 includes $5.5 million of insurance proceeds received and are recorded as part of "Other operating income, net" in our Consolidated Statements of Operations and Comprehensive Income (Loss).

Lucky Friday's income from operations for 2024 includes $50.0 million of business interruption and property damage insurance proceeds received during the respective periods related to the fire which suspended Lucky Friday's operations from August 2023 through January 8, 2024. The insurance proceeds received are recorded as part of "Other operating (income) expense, net" in our Consolidated Statements of Operations and Comprehensive Income (Loss).

During 2024, the Company wrote down $14.6 million of property, plant and mine development which had no salvage value. Of this amount, $13.9 million is included in Lucky Friday's income from operations and is related to the remote vein miner machine for which (i) we no longer had a use following the success of the Underhand Closed Bench mining method, (ii) we had been unsuccessful in locating a buyer, and (iii) the vendor advised us during the period that it would discontinue support for the program. The write down is recorded as part of "Write down of Property, Plant and Mine Development" in our Consolidated Statements of Operations and Comprehensive Income (Loss).

Our products consist of metal concentrates and carbon material, which we sell to custom smelters, metal traders and third-party processors, and unrefined bullion bars (doré), which may be sold as doré or further refined before sale to precious metal traders. Revenue is recognized upon the completion of the performance obligations and transfer of control of the product to the customer.

For sales of metals from refined doré at Casa Berardi, the performance obligation is met, the transaction price is known, and revenue is recognized at the time of transfer of control of the agreed-upon metal quantities to the customer by the refiner. Refining, selling and shipping costs related to sales of doré and metals from doré are recorded to cost of sales as incurred.

For sales of carbon materials, transfer of control takes place, the performance obligation is met, the transaction price is known, and revenue is recognized generally at the time of arrival at the customer's facility.

For concentrate sales, which we currently have at Greens Creek, Lucky Friday, and Keno Hill, the performance obligation is met, the transaction price can be reasonably estimated, and revenue is recognized generally at the time of shipment. Concentrates sold at Lucky Friday typically leave the mine and are received by the customer within the same day. However, there is a period of time between shipment of concentrates from Greens Creek and Keno Hill and their physical receipt by the customer, and judgment is required in determining when control has been transferred to the customer and the performance obligation has been met for those shipments. We have determined control is met, title is transferred and the performance obligation is met upon shipment of concentrate parcels from Greens Creek and Keno Hill because, at that time, 1) legal title is transferred to the customer, 2) the customer has accepted the parcel and obtained the ability to realize all of the benefits from the product, 3) the concentrate content specifications are known, have been communicated to the customer, and the customer has the significant risks and rewards of ownership of it, 4) it is very unlikely a concentrate parcel from Greens Creek will be rejected by a customer upon physical receipt, and 5) we have the right to payment for the parcel.

Judgment is also required in identifying our concentrate sales performance obligations. Most of our concentrate sales involve “frame contracts” with smelters that can cover multiple years and specify certain terms under which individual parcels of concentrates are sold. However, some terms are not specified in the frame contracts and/or can be renegotiated as part of annual amendments to the frame contract. We have determined parcel shipments represent individual performance obligations satisfied at the point in time when control of the shipment is transferred to the customer.

The amount of consideration we receive for our concentrate sales is variable and fluctuates due to changes in metals prices between the time of shipment and final settlement with the customer. However, we are able to reasonably estimate the transaction price for the concentrate sales at the time of shipment using forward prices for the month of settlement, and previously recorded sales and accounts receivable are adjusted to estimated settlement metals prices until final settlement with the customer. Also, it is unlikely a significant reversal of revenue for any one concentrate parcel will occur. As such, we use the expected value method to price the parcels until the final settlement date occurs, at which time the final transaction price is known. At December 31, 2025, metals contained in concentrate sales and exposed to future price changes totaled 3.5 million ounces of silver, 2,272 ounces of gold, 14,028 tons of zinc, and 8,322 tons of lead. However, as discussed in Note 10, we seek to mitigate the risk of price adjustments by using financially-settled forward contracts and commodity price collars for some of our sales.

Sales and accounts receivable for concentrate shipments are recorded net of charges for treatment, refining, smelting losses, and other charges negotiated by us with the customers, which represent components of the transaction price. Charges are estimated by us upon shipment of concentrates based on contractual terms, and actual charges typically do not vary materially from our estimates. Costs charged by customers include fixed treatment and refining costs per ton of concentrate and may include price escalators which allow the customers to participate in the increase of lead and zinc prices above a negotiated baseline. Costs for shipping concentrates to customers are recorded to cost of sales as incurred.

Metal sales for 2025, 2024 and 2023 included net losses of $29.6 million and net gains of $1.3 million and $19.7 million, respectively, on derivative contracts for silver, gold, lead and zinc contained in our sales. See Note 10 for more information.

Our trade accounts receivable balance related to contracts with customers was $170.2 million, $31.5 million and $19.4 million at December 31, 2025, 2024 and 2023, respectively, and included no allowance for credit losses. Trade accounts receivable balances with significant metals customers as of December 31, 2025, 2024 and 2023 were as follows:

We have determined our contracts do not include a significant financing component. For doré sales and sales of metal from doré, payment is received at the time the performance obligation is satisfied. Payment for carbon sales is received within a relatively short period of time after the performance obligation is satisfied. The amount of consideration for concentrate sales is variable, and we receive payment for a significant portion of the estimated value of concentrate parcels within a relatively short period of time after the performance obligation is satisfied.

Our environmental services remediation revenue is all generated by our ERDC subsidiary and all from one customer CIRNAC. Annually, ERDC and CIRNAC agree to detailed work plans ("DWP") covering the planned activities from April 1 to March 31, the Canadian government's fiscal year. All DWPs are a separate performance obligation, which are satisfied over time as the services are performed and CIRNAC approves the work performed. Payment terms are 30 days after receipt of an invoice by CIRNAC. CIRNAC has the ability to cancel the contract with or without cause by providing written notice to the Company. ERDC is owed for work performed as of the date of cancellation. As at December 31, 2025, 2024 and 2023, CIRNAC owed us $8.2 million, $8.8 million and $3.6 million, which is included as part of "Other Accounts Receivable" on our consolidated balance sheet.

We do not incur significant costs to obtain contracts, nor costs to fulfill contracts which are not addressed by other accounting standards. Therefore, we have not recognized an asset for such costs as of December 31, 2025 and 2024.