Exhibit 23.5
Consent of Registered Public Accounting Firm
We hereby consent to the incorporation by reference in this Registration Statement on FormS-3 of Hecla Mining Company of our report dated March 14, 2018 relating to the consolidated financial statements of Klondex Mines Ltd., which appears in the Current Report onForm 8-K of Hecla Mining Company filed on July 24, 2018.
We also consent to the reference to us under the heading, “Experts” in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
Vancouver, British Columbia, Canada
February 21, 2019