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HECLA MINING CO/DE/

For the period ended Jun 30, 2026. Filed Aug 4, 2026.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2026 · Filed Aug 4, 2026

HL$14.74+2.0%Stored close · as of Nov 6, 2026

What changed in Risk Factors?

Read the current filing

Previous report: 10-Q

Period ended 2026-03-31; filed 2026-05-05.

0001193125-26-206810

Mine Safety DisclosuresOther Information

Current report: 10-Q

Period ended 2026-06-30; filed 2026-08-04.

0001193125-26-333090

Item 1A. Risk FactorsMine Safety DisclosuresOther Information

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 2 previous paragraphs and 17 current paragraphs.

2 unchanged; 0 reworded; 15 added; 0 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 0 previous and 0 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (15)

Current report

The growth opportunities described in this report are subject to significant risks and uncertainties.

Current report

The growth opportunities discussed elsewhere in this report, including the Greens Creek pyrite concentrate circuit, the Greens Creek tailings reprocessing project, and the potential restart of our Midas mill (collectively, the “Growth Projects”), are in early stages of technical and economic evaluation and are subject to the following risks:

Current report

the costs of developing new orebodies, processing circuits, or facilities, and the risk that capital and operating costs may be higher, and returns lower, than currently estimated;

Current report

our ability to obtain and maintain permits and other governmental approvals on the timeline anticipated, or at all, including as a result of environmental, regulatory, or third-party review processes;

Current report

uncertainty in mineral resource and exploration estimates, including, with respect to the Midas restart, the risk that further exploration and delineation may not identify mineral resources sufficient to support a sustainable restart of operations;

Current report

the performance of new or modified metallurgical processes at a commercial scale, including with respect to the potential pyrite concentrate circuit and reprocessing of tailings at Greens Creek, which may differ materially from projected results and results obtained in preliminary testing; and

Current report

fluctuations in silver, gold, and other metals prices, which may significantly affect the economic attractiveness of these Growth Projects and may differ materially from the prices assumed in our current evaluations.

Current report

In addition, the Growth Projects are subject to the risks described in Part I, Item 1A of our 2025 Form 10-K, including, without limitation, the following risks:

Current report

We are required to obtain governmental permits and other approvals in order to conduct mining operations.

Current report

Legal challenges could prevent exploration projects from being developed or existing mines from future expansion.

Current report

Our costs of extending existing reserves or development of new orebodies and other capital costs may be higher and provide less return than we estimated.

Current report

Our mineral reserve and resource estimates may be imprecise.

Current report

A substantial or extended decline in metals prices would have a material adverse effect on us.

Current report

Mine closure and reclamation regulations impose substantial costs on our operations and include requirements that we provide financial assurance supporting those obligations. These costs could significantly increase and we might not be able to provide financial assurance.

Current report

Any decision to proceed with development of these projects would require further technical, economic, and regulatory review and approval by management and, where applicable, our Board of Directors. There is no assurance that any of these projects will be developed, or that if developed, will be profitable or completed on the timeline, at the cost, or with the results currently projected.