JOINT FILING AGREEMENT
Exhibit A
The undersigned agree that this Schedule 13G Amendment No. 3 dated August 14, 2025 relating to the Common Stock, $0.01 par value, of Mammoth Energy Services, Inc. shall be filed on behalf of the undersigned.
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VALUEWORKS LIMITED PARTNERS, LP By: ValueWorks Capital, LLC, its general partner
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| Name: ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇ | |
| Title: Managing Member |
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VALUEWORKS CAPITAL, LLC
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| Name: ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇ | |
| Title: Managing Member |
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| Name: ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇ | |
| Title: Managing Member |
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