Exhibit 99.4

CONSENT OF CARLOS HENRIQUE B. PIRES

April 26, 2022

To: United States Securities and Exchange Commission (the "SEC")

Re: Great Panther Mining Ltd. (the "Company") Registration Statement on Form F-10 (including any amendments thereto, the "Registration Statement")

I hereby consent to the use of my name in the Registration Statement in connection with my review and approval of the technical information in the Company's press release dated April 26, 2021 (the "Press Release").

In addition, I consent to the description and incorporation by reference of the information contained in the Press Release in the Registration Statement.

This consent extends to any amendments to the Registration Statement, including any post-effective amendments.

Yours truly,

(s) Carlos Henrique B. Pires

Carlos Henrique B. Pires, Chartered Professional,

Fellow AusIMM (CP)