Mammoth Announces Upsizing to $980,000 It’S Previously Announced Private Placement Financing.

Exchange Tower

410 - 150 York Street

Toronto, Ontario

M5H 3S5 Canada

www.mammothresources.ca

FOR IMMEDIATE RELEASE: July 17, 2025 No. 03/25

MAMMOTH ANNOUNCES UPSIZING TO $980,000 IT’S

PREVIOUSLY ANNOUNCED PRIVATE PLACEMENT

FINANCING.

Toronto, Canada (July 17 2025) - Mammoth Resources Corp. (TSX-V: MTH), (the “Company”, or

“Mammoth”) would like to announce that due to additional demand, the Company has requested and

received conditional approval from the TSX to upsize its previously announced non-brokered private

placement of up to 30 million units of the Company (the "Units") at an offering price of $0.025 per Unit, for

gross proceeds of up to $750,000 (the "Private Placement") to up to 39 million Units, for gross proceeds

of up to $980,000. The upsized Private Placement is at the same terms as the previous announcement,

wherein each Unit consists of one common share of the Company (a "Common Share") and one-half

common share purchase warrant (the "Warrant"). Each Warrant will entitle the holder thereof to acquire

one Common Share until eighteen months following closing of the private placement, at an exercise price

of $0.05. The Company has set no minimum number of Units to be distributed and no minimum dollar

amount required to be raised in connection with the Private Placement. The gross proceeds of the Private

Placement will be used to advance the Company's Tenoriba precious metal project in Chihuahua State,

Mexico, to evaluate potential project acquisitions and support working capital needs.

The Private Placement

This Private Placement is available to accredited investors. The pricing of this Private Placement was

granted under the Venture Exchange Discretionary Waiver Bulletin (“Bulletin”). Under the conditions of the

Bulletin, the pricing of the Private Placement was set by the Company’s closing share price of

$0.025/share, the day prior to the original announcement. The pricing of the Private Placement represents

a small premium from the 10-day volume-weighted average share price during the previous 10 trading

days of $0.022/share from the date of the original announcement. Securities issued under this Private

Placement will be subject to a four-month hold period. In accordance with the requirements of the

Investment Dealer Exemption, the Company confirms there is no material fact or material change related

to the Company which has not been disclosed. The Company has been granted conditional approval for

this Private Placement; however, closing of this Private Placement is subject to receipt of all required

regulatory and Exchange approvals. The Company may pay a finder's fees on a portion of the Private

Placement in accordance with applicable securities laws and the policies of the TSX Venture Exchange.

From the gross proceeds of the Private Placement, approximately 60% are intended to be used to

advance the Company's Tenoriba precious metal project in Chihuahua State, Mexico and to evaluate

potential project acquisitions, with the remaining 40% intended to support working capital needs.

Anyone interested in participating in this financing are encouraged to contact Thomas Atkins, President

and CEO of Mammoth at: [email protected] or by telephone at: 416 509-4326.

About Mammoth Resources:

Mammoth Resources (TSX-V: MTH) is a precious metal mineral exploration Company focused on

acquiring and defining precious metal resources in Mexico and other attractive mining-friendly

jurisdictions in the Americas. The Company holds a 100% interest (subject to a 2% net smelter royalty

purchasable anytime within two years from commencement of commercial production for US$1.5

million) in the 5,333-hectare Tenoriba gold property located in the Sierra Madre Precious Metal Belt in

southwestern Chihuahua State, Mexico. Mammoth is seeking other opportunities to option exploration

projects in the Americas on properties it deems to host above-average potential for economic

concentrations of precious metals mineralization.

To find out more about Mammoth Resources and to sign up to receive future press releases, please visit the

company's website at: www.mammothresources.ca., or contact Thomas Atkins, President and CEO.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of

the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Forward Looking Information: This news release may contain or refer to forward-looking information. All

information other than statements of historical fact that address activities, events or developments that the

Company believes, expects or anticipates will or may occur in the future are forward-looking statements; examples

include the listing of its shares on a stock exchange and establishing mineral resources. These forward-looking

statements are subject to a variety of risks and uncertainties beyond the Company's ability to control or predict that

may cause actual events or results to differ materially from those discussed in such forward-looking statements.

Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by

applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking

statement, whether as a result of new information, future events or results or otherwise. Although the Company

believes that the assumptions inherent in the forward-looking statements are reasonable, forward-looking

statements are not guarantees of future performance and, accordingly, undue reliance should not be placed on

these forward-looking statements due to the inherent uncertainty therein.