Mr. Thomas Atkins reports

MAMMOTH PROVIDES AN UPDATE ON CORPORATE AND PROJECT DEVELOPMENT ACTIVITIES, INCLUDING APPOINTMENT OF NEW DIRECTORS AND CFO AND ISSUANCE OF INCENTIVE OPTIONS

Following Toronto Stock Exchange approval, Mammoth Resources Corp. has appointed three new directors to its board. Mammoth welcomes Jose Antonio Berlanga Balderas, Jose Antonio Berlanga Lopez and Edgardo Espinosa Velasco as new directors. Mr. Berlanga Balderas will join the company's audit committee as an independent director, together with Mr. Berlanga Lopez, while Mr. Espinosa Velasco will join the company's compensation and governance committee. The addition of these Mexican mining and business professionals strengthens Mammoth's capabilities and influence in Mexico while the company pursues resource definition and small-scale, pilot gold-silver production at its 100-per-cent-owned Tenoriba exploration property in the Sierra Madre precious metal belt, and other near-term precious and base-metal production opportunities in Mexico. The company would also like to announce the appointment of Paul Rozek as its new chief financial officer.

Thomas Atkins, president and chief executive officer of Mammoth, commented on the new additions to the Mammoth board, stating: "I'm very pleased to welcome Mammoth's new directors. The additions of Mr. Berlanga Lopez, together with his significant financial investment in Mammoth, plus the addition of Mr. Berlanga Balderas and Mr. Espinosa Velasco, creates a strong team of technical and business development professionals with decades of Mexican mining industry experience that few companies of Mammoth's size can match. The addition of these individuals to Mammoth's board is a further illustration of the commitment we have together to build Mammoth's opportunities and presence in Mexico as we advance development of Tenoriba and seek additional near-term precious metal production opportunities. We're also pleased to announce the appointment of Paul Rozek as Mammoth's new CFO and welcome his experience and contribution to the team."

Mr. Berlanga Balderas, chief executive officer of RM Mineria S de RL de CV, reiterated his enthusiasm for joining the Mammoth board, stating: "I'm pleased to have joined the Mammoth board of directors. I look forward to working closely with Thomas, my other directors and the Mammoth team as we take steps together to advance the development of the Tenoriba project and pursue additional potential near-term precious metal production opportunities in our quest to build a strong platform of project development opportunities in Mexico."

New director and officer profiles

Mr. Berlanga Balderas is CEO of RM Mineria S de RL de CV, a private Mexican company formed by a group of mining and metallurgical engineering and project development specialists. Mr. Berlanga Balderas is a professional mining and metallurgical engineer with over 45 years experience identifying, developing, operating and optimizing mineral extraction opportunities in the Mexican mining sector, including: providing technical services to Minera Autlan, Servicios Industriales Penoles, Minas Nuevas and was founder of Minera Mexico Michoacan, technical deputy director of the mining development trust (a Mexican state-owned company that offers financing and technical assistance to mining companies), and development manager, Internacional de Metales Precios (one of the main gold and silver trading companies in Mexico). Mr. Berlanga Balderas has an equally strong record in the Canadian junior mining industry, bringing significant experience to companies in which he has participated, including: Aurcana Corp., Cayden Resources, Skeena Resources, Cortez Goldcorp and Telson Mining (now Luca Mining). Mr. Berlanga Balderas has been president of the Colegio de Ingenieros de Minas y Metalurgistas y Geologos de Mexico (CIMMGM), has been district president and member of the National Board of Directors in the Asociacion de Ingenieros de Minas, Metalurgistas y Geologos de Mexico (AIMMGM), and is a member of the Prospectors and Developers Association of Canada (PDAC) and the American Institute of Mining Engineers (AIME).

Mr. Berlanga Lopez, president of RM Mineria S de RL de CV. Mr. Berlanga Lopez is a professional mining and metallurgical engineer, with over 20 years experience in Mexico. He is a graduate from the Universidad Nacional Autonoma de Mexico (UNAM) and has a strong background investigating mining opportunities, start-up companies, business strategy and mineral concentrate trading in Mexico, and has worked for several companies, such as Minera La Negra, Altiplano Gold Silver, Mercuria, Azure Minerals and Reyna Mining Engineering. Mr. Berlanga Lopez is a member of the Colegio de Ingenieros de Minas y Metalurgistas y Geologos de Mexico (CIMMGM), the Asociacion de Ingenieros de Minas, Metalurgistas y Geologos de Mexico (AIMMGM), and of the Prospectors and Developers Association of Canada (PDAC).

Mr. Espinosa Velasco is an experienced geologist with 30 years experience in the Mexican mining industry both as a professional geologist and a mining and civil engineering services owner-manager. Mr. Velasco graduated in 1995 from the engineering faculty of the Universidad del Estado de San Luis Potosi, Mexico. Since graduating, Mr. Valesco has worked as a professional geologist for national and foreign exploration and mining companies in Mexico. Since 2004, he has been an active member of the Asociacion de Ingenieros de Minas Metalurgistas y Geologos de Mexico and has held numerous director positions at the San Luis Potosi branch of the Asociacion. In 2012 Mr. Valesco founded Caldera Drilling SA de CV, a Mexican drill contracting company that provides diamond drilling services for the civil engineering and mineral exploration industries in Mexico.

Mr. Rozek is a professional chief financial officer with experience and knowledge of the publicly listed mining sector. Mr. Rozek brings a comprehensive skill set encompassing corporate planning, strategy development, financing, forecasting, strategic treasury and cash management, tax functions, and timely and accurate financial reporting. In his finance roles, he has provided complex tax planning, advisory and compliance services, alongside offering strategic business advisory, coaching and contract CFO support. Mr. Rozek's is a chartered accountant and chartered professional accountant coupled with experience in healthcare where he gained international experience as a contractor for the Bermuda Hospitals Board's modernization project.

Activities update

Mammoth continues to advance activities at its 100-per-cent-owned Tenoriba gold-silver exploration project in the prolific Sierra Madre precious metal belt in southwestern Chihuahua state, Mexico. The company, collaborating with RM Mineria S de RL de CV, is evaluating the potential to advance a bulk sample and pilot leaching of shallow oxidized gold-silver material at Tenoriba, in addition to resource definition drilling. The bulk sample has the potential to both generate processing design knowledge while drilling could facilitate a maiden mineral resource at Tenoriba, with the added potential of generating cash flow from the bulk sampling. The Mexican team is also evaluating a variety of potential near-term precious metal production opportunities in Mexico. It is important to note with these activities that there is no certainty on the timing and success of the acquisition of any near-term precious metal production opportunities, however, given the years of experience of the company's Mexican directors the potential for engaging with parties on opportunities is greatly enhanced as a result of their many years of industry experience in Mexico and contacts at all levels of the Mexican mining industry.

Issuance of incentive options

In accordance with TSX Policy 4.4, the company has issued 4,775,500 common share stock options to directors, officers and contract employees of the company. This issuance totals 45 per cent of the total number of options eligible to be issued by the company under the terms of the company's stock option plan and are exercisable at five cents per common share (yesterday's closing share price on the TSX Venture Exchange). The company offers no cash compensation to directors and last issued incentive stock options to directors, officers and contractors of the company in late 2022. A total of 927,400 options under this issuance replace options issued in 2017, which expired earlier this year.

Options issued to directors and officers are based on levels of incentive compensation paid to similar small capitalization companies as referenced in a recent industry compensation review and a number which is approximately equal to the percentage of options issued, relative to the number of shares outstanding, prior to the recent private placement (refer to press release date Aug. 19, 2025), with the exercise price of these options at a 100-per-cent premium to the per unit private placement price.

About Mammoth Resources Corp.

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-per-cent interest (subject to a 2-per-cent net smelter royalty purchasable anytime within two years from commencement of commercial production for $1.5-million (U.S.)) in the 5,333-hectare Tenoriba gold property located in the Sierra Madre precious metal belt in southwestern Chihuahua state, Mexico. Mammoth is seeking opportunities to invest in additional exploration and development projects in the Americas on properties it deems to host above-average for economic concentrations of precious metals mineralization. Mammoth recently entered into a strategic alliance with RM Mineria S de RL de CV of Mexico in pursuit of additional project development opportunities.

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