Exhibit 23.3
THIRD PARTY REVIEWER CONSENT
We consent to the reference to us in the Annual Report on Form10-K for the year ended December 31, 2018 and the incorporation by reference of such report in the Prospectus constituting a part of this Registration Statement on FormS-3 of Hecla Mining Company. In giving this consent, we do not admit that we are within the category of persons whose consent is required by Section 7 of the Securities Act of 1933 or the rules and regulations of the Securities and Exchange Commission.
| Date: February 21, 2019 |
| /s/ Deborah A. McCombe, P.Geo. |
President and CEO Roscoe Postle Associates Inc. |