Hecla Mining HL Greens Creek — Contractual Obligation

Our contractual obligations as of March 31, 2026 included open purchase orders and commitments of $8.0 million, $8.7 million and $5.0 million, for various capital and non-capital items at Greens Creek, Lucky Friday and Keno Hill, respectively. We also have total commitments of $4.3 million relating to scheduled payments on finance leases, including interest, primarily for equipment at our Greens Creek, Lucky Friday, and Keno Hill units, and total commitments of $23.7 million relating to payments on operating leases (see Note 8 for more information). As part of our ongoing business and operations, we are required to provide surety bonds, bank letters of credit, and restricted deposits for various purposes, including financial support for environmental reclamation obligations and workers compensation programs. As of March 31, 2026, we had surety bonds totaling $227.3 million and letters of credit totaling $8.0 million in place as financial support for future reclamation and closure costs, self-insurance, and employee benefit plans. The obligations associated with these instruments are generally related to performance requirements that we address through ongoing operations. As the requirements are met, the beneficiary of the associated instruments cancels or returns the instrument to the issuing entity. Certain of these instruments are associated with operating sites with long-lived assets and will remain outstanding until closure of the sites. We believe we are in compliance with all applicable bonding requirements and will be able to satisfy future bonding requirements as they arise.