Vancouver, British Columbia--(Newsfile Corp. - November 5, 2025) - American Tungsten Corp. (CSE: TUNG) (OTCQB: TUNGF) (FSE: RK9) ("American Tungsten" or the "Company is pleased to share continued progress on its rehabilitation efforts at the IMA Mine in Patterson, Idaho, with new operational milestones achieved during the week ending October 31, 2025.

Following the Company's recent successful close of its non-brokered LIFE financing, the scope of the first phase of drilling will now be expanded to include targeted diamond drill positions at the Zero Level. In the first phase of diamond drilling, this will increase the original drill program of ~5,400 ft. to over 10,000 ft. at five planned stations (originally three) spread between both the D Level and the Zero Level drifts. Furthermore, the Company's drilling & services contractor plans to double-shift schedule to expedite these efforts through the end of the year. It is expected that the start of the Company's first phase of drilling will occur before the end of November.

Additional IMA Mine work progress and updates are as follows.

Laying the Foundation

• Access roads and switchbacks to access both the D Level and Zero Level have been further improved and all services have now been installed to support the Company's underground excavation work and diamond drill program;
• The Company's core shed is in the process of being equipped and readied with additional staff hired to support future core sampling and assaying activities; and
• The Company will be contracting Minetech USA, LLC, a private engineering firm based in Butte, Montana, who will provide mine planning and geotechnical engineering expertise to the Company's tungsten development plans.

D Level Progress

• Approximately 1,100 ft. of underground access drift has now been rehabilitated to the initial cross-cut location that will support the first phase of diamond drilling;
• Excavation of the new access drift has already commenced towards the first diamond drill station and is ~25% complete (~48ft.) with ~138ft. of excavation remaining;
• An underground rig has been secured for drill activities planned at the D Level and is now on the property;
• Office and storage facilities are now in place at the base of the canyon, and additional personnel have been procured to support the upcoming drill program scheduled for November; and
• The D level surface portal area has been finalized to include a small container office, generator, water storage, and a laydown area for materials

Zero Level Progress

• The Company has decided to immediately resume rehabilitation efforts at the Zero Level in order to support an expanded first phase of diamond drilling (with plans to setup two drill stations at the Zero Level);
• The Contractor has now further progressed rehabbing the Zero Level access drift to remove and re-support the remaining blockages (located ~125 ft. from the portal entrance), and this work should be completed in the next two weeks; and
• The Contractor has now sourced and secured a second diamond drill rig that will support the drill activities planned at the Zero Level

"Our team continues to lay a solid operational foundation for the IMA Mine ahead of our planned diamond drilling program in November," stated Ali Haji, CEO of American Tungsten. "Accelerating our drilling program will put the company in a stronger position for its development and production efforts in the lead-up to 2026. Additionally, following China's announcement this week of further export controls on tungsten until 2027, American Tungsten is well-placed to become the domestic supplier of this critical mineral as we continue to plan for full-scale production."

American Tungsten intends to provide continual operational updates as rehabilitation and exploratory drilling progresses at its IMA Mine site location.

D Level Portal Area

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Base of Canyon - New Office Container

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Zero Level Access Drift - Additional Support Installed

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Diamond Drill mobilized to Site

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Diamond Drill mobilized to site 

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Zero Level - Rehabbing of the access drift

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ABOUT AMERICAN TUNGSTEN CORP.

American Tungsten Corp. is a Canadian exploration company focused on high-potential tungsten and magnetite assets in North America. The Company is advancing the Ima Mine Project in Idaho to commercial production, addressing critical metal scarcity in North America. The Company's Ima Mine Project is a historic and high-quality underground tungsten past-producing property on private-patented land well above the water table with significant infrastructure. The Company holds an exclusive option to acquire full ownership (subject to a 2% royalty) and has expanded its land position with 113 additional federal claims covering nearly 2,000 acres.

For further updates, visit www.americantungstencorp.com or investor relations, Joanna Longo at ir@americantungstencorp.com.

Social media links:
LinkedIn: https://www.linkedin.com/company/americantungstencorp/ 
X: https://x.com/amtungsten
Facebook: https://www.facebook.com/americantungstencorp/ 
Instagram: https://www.instagram.com/americantungstencorp/ 
YouTube: https://www.youtube.com/@americantungstencorp

CSE: TUNG 
OTCQB: TUNGF 
FSE: RK9

The Canadian Securities Exchange does not accept responsibility for the adequacy or accuracy of this release and has neither approved nor disapproved the contents of this press release.

This news release includes "forward-looking information" that is subject to a number of assumptions, risks and uncertainties, many of which are beyond the control of the Company. Forward-looking statements may include but are not limited to, statements relating to the completion of the Offering on the terms described herein or at all, and the use of proceeds and available funds following the completion of the Offering and are subject to all of the risks and uncertainties normally incident to such events. Investors are cautioned that any such statements are not guarantees of future events and that actual events or developments may differ materially from those projected in the forward-looking statements. Such forward-looking statements represent management's best judgment based on information currently available. No securities regulatory authority has either approved or disapproved of the contents of this news release. The Company undertake no obligation to update publicly or otherwise revise any forward-looking statements, except as may be required by law. Images in this press release are for illustrative purposes only and do not represent the grade or quantity of mineralization which may be present. Visual estimates of mineralization quantity are not a substitute for laboratory analyses. Laboratory analyses from samples have not been received and there is no guarantee that results will demonstrate presence of mineralization at economically significant quantities. Laboratory analyses are expected in 6-8 weeks.

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