PROPERTY, PLANT AND EQUIPMENT

12 Months Ended

Dec. 31, 2025

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT

NOTE 7 – PROPERTY, PLANT AND EQUIPMENT

The components of the Company’s property, plant and equipment (“PP&E”) by segment were as follows:

December 31, 2025	Antimony		Zeolite		All Other		TOTAL
Plant and equipment	$	14,814,441	$	7,031,403	$	487,751	$	22,333,595
Buildings		1,106,303		1,705,893		3,111,073		5,923,269
Mineral rights and interests		—		16,753		6,107,085		6,123,838
Land		2,083,094		—		1,530,782		3,613,876
Construction in progress		19,071,013		45,000		—		19,116,013
Total property, plant and equipment		37,074,851		8,799,049		11,236,691		57,110,591
Accumulated depreciation		(10,278,230)		(4,146,457)		(311,065)		(14,735,752)
Property, plant and equipment, net	$	26,796,621	$	4,652,592	$	10,925,626	$	42,374,839

December 31, 2024	Antimony		Zeolite		All Other		TOTAL
Plant and equipment	$	13,512,321	$	6,597,781	$	427,720	$	20,537,822
Buildings		1,106,303		1,705,893		11,970		2,824,166
Mineral rights and interests		—		16,753		125,000		141,753
Land		2,083,094		—		914,443		2,997,537
Construction in progress		—		101,938		—		101,938
Total property, plant and equipment		16,701,718		8,422,365		1,479,133		26,603,216
Accumulated depreciation		(9,602,469)		(3,857,785)		(251,515)		(13,711,769)
Property, plant and equipment, net	$	7,099,249	$	4,564,580	$	1,227,618	$	12,891,447

Domestic and foreign net property, plant and equipment was as follows:

	As of December 31,
	2025		2024
Domestic	$	31,451,487	$	6,634,066
Mexico		5,791,010		6,232,381
Canada		5,132,342		25,000
Property, plant and equipment, net	$	42,374,839	$	12,891,447

In February 2025, the Company purchased a personal residence located near its operations in Thompson Falls, Montana for $445,000, which is presently being used by management personnel transferred there to work primarily on our plant expansion efforts. This asset and related expenses are included in the “All Other” category in the Company’s segment reporting.

In October 2025, the Company purchased property in Fairbanks, Alaska for a total purchase price of $1,200,000. The property included four residential homes, a duplex, a storage building, and approximately 17 acres of land. The payment made to acquire these assets, along with $22,951 in direct transaction costs and $99,817 in assumed liabilities, was allocated to the land and buildings based on their relative fair values and included in the “All Other” category for segment reporting. Based on their condition and the remaining estimated economic utility, one of the acquired homes was assigned an estimated useful life of 15 years and the remaining homes, duplex, and storage building were each assigned a useful life of 20 years.

In December 2025, the Company purchased four residential duplex buildings and a four-bay detached garage located near its operations in Thompson Falls, Montana for a price of $1,368,376, which includes direct transaction costs of $2,751. The purchase price was allocated to the land and buildings based on their relative fair values and included in the “All Other” category for segment reporting. The buildings will be depreciated over their estimated remaining useful life of 25 years. This property will be used as residential housing for personnel working at its facility in Thompson Falls, Montana as well as third-party tenants.

Mineral rights and interests

In January 2025, the Company executed an agreement to acquire the ownership rights to one hundred and twenty mining claims located in the Fairbanks District of Alaska (“January Fairbanks Agreement”). Payments to acquire these claims have been or will be made by the Company on or around the payment dates indicated as follows:

Payment Date	Payment Amount
January 2025	$	100,000
July 2025		50,000
January 2026		50,000
July 2026		50,000
January 2027		50,000
July 2027		50,000
January 2028		50,000
July 2028		50,000
January 2029		100,000
July 2029		100,000
January 2030		100,000
July 2030		2,250,000
Total	$	3,000,000

The January Fairbanks Agreement requires a royalty payment by the Company based on the value realized from ore mined from the claims (“Net Smelter Royalty on Claims”) and another royalty payment by the Company based on the value realized from ore mined, if any, from certain areas surrounding these one hundred and twenty mining claims (“Net Smelter Royalty on Surrounding Area”). A certain percentage of the Net Smelter Royalty on Claims can be purchased back by the Company with certain factors causing an escalation in this buyback amount. Also, the January Fairbanks Agreement includes a commitment by the Company to spend an aggregate of $2,250,000 on exploring and developing these claims over five years beginning January 2025, with various milestones over this five-year period. The January Fairbanks Agreement can be terminated without cause at any time by the Company with notice.

In March 2025, the Company executed an agreement to acquire the ownership rights to twenty-five additional mining claims and leases located in the Fairbanks District of Alaska (“March Fairbanks Agreement”). Payments to acquire these claims and leases have been or will be made by the Company on or around the payment dates indicated as follows:

Payment Date	Payment Amount
March 2025	$	50,000
September 2025		25,000
March 2026		25,000
March 2027		25,000
March 2028		25,000
March 2029		275,000
Total	$	425,000

The March Fairbanks Agreement requires a royalty payment by the Company based on the value realized from ore mined from the claims and leases (“Net Smelter Royalty”). A certain percentage of the Net Smelter Royalty can be purchased back by the Company. Also, the March Fairbanks Agreement includes a commitment by the Company to spend an aggregate of $250,000 on exploring and developing these claims and leases over approximately forty-one months beginning March 2025, with various milestones over this period. The March Fairbanks Agreement can be terminated without cause by the Company with notice.

In May 2025, the Company paid $230,000 to acquire the surface rights related to its patented lode mining claim located in Thompson Falls, Montana.

In June 2025, the Company acquired property located in the Sudbury District of Ontario, Canada, which included 50 single-cell mining claims (the “Fostung Properties”) for $5,000,000. Direct transaction costs related to this acquisition totaled $25,120. In addition, the agreement required the Company to pay a 1.5% net smelter return royalty based on the value realized from ore mined from the property.

In January 2026, the Company paid approximately $108,000 to buy back 1% of the net smelter royalty associated with the Fostung Properties.

In June 2025, the Company executed an agreement to acquire the ownership rights to various patented federal lode mining claims located in the Fairbanks District of Alaska (“June Fairbanks Agreement”). Payments to acquire these claims are scheduled to be made by the Company as follows:

Payment Date	Payment Amount
Within 10 days of June 1, 2025	$	150,000
December 2025		100,000
June 2026		100,000
June 2027		100,000
June 2028		100,000
June 2029		1,450,000
Total	$	2,000,000

The June Fairbanks Agreement requires net smelter royalty payments be made by the Company based on the value realized from ore mined from the claims. Also, the agreement includes a commitment by the Company to spend an aggregate of $700,000 in exploring and developing these claims based on various milestones scheduled to occur over approximately thirty-nine months from the effective date of the agreement. This agreement can be terminated without cause at any time by the Company with ninety-days’ notice.

In September 2025, the Company executed an agreement to acquire the ownership rights to mining claims located in the Fairbanks District of Alaska (“September Fairbanks Agreement”). Payments to acquire these claims have been or will be made by the Company on or around the payment dates indicated as follows:

Payment Date	Payment Amount
September 2025	$	50,000
March 2026		25,000
September 2026		50,000
September 2027		50,000
September 2028		50,000
September 2029		275,000
Total	$	500,000

The September Fairbanks Agreement requires a royalty payment by the Company based on the value realized from ore mined from the claims (“Net Smelter Royalty”). A certain percentage of the Net Smelter Royalty can be purchased back by the Company. Also, the September Fairbanks Agreement includes a commitment by the Company to spend an aggregate of $250,000 on exploring and developing these claims over approximately thirty-six months beginning September 2026, with various milestones over this period. The September Fairbanks Agreement can be terminated without cause by the Company with notice.

In November 2025, the Company executed an agreement to acquire exploration rights for mining properties located in the southeastern United States (the “ Southeastern Project”). Payments required pursuant to this agreement will be made by the Company on or around the payment dates indicated as follows:

Payment Date	Payment Amount
November 2025	$	100,000
November 2027		125,000
November 2028		150,000
Total	$	375,000

The Southeastern Project agreement requires net smelter royalty payments be made by the Company based on the value realized from ore mined from the mining properties. Also, the agreement includes a commitment by the Company to spend an aggregate of $1,200,000 in exploring and developing these mining properties based on various milestones scheduled to occur over approximately thirty-six

months from the effective date of the agreement. This agreement can be terminated without cause at any time by the Company with thirty days’ notice.

In August 2024, the Company executed an option agreement to acquire the ownership rights to ninety-seven mining claims and three mining leases located in the Sudbury District of Ontario, Canada. Payments totaling $275,000 are to be made by the Company over time to acquire these claims. This agreement requires a royalty payment by the Company based on potential future production from the claims (“Net Smelter Royalty”) with a minimum royalty payment beginning on the fifth anniversary of the agreement. A certain percentage of the Net Smelter Royalty can be purchased back by the Company. Also, the agreement includes a commitment by the Company to spend an aggregate of $250,000 on exploring and developing these claims over four years from the agreement date, with various milestones over this four-year period. The agreement can be terminated without cause at any time by the Company with thirty days’ notice.

All payments related to these mining claims and leases that became due on or before December 31, 2025 were made by the Company pursuant to the terms of the underlying agreements. The payments made to acquire these mining claims and leases, including any direct transaction costs, are capitalized in the “Mineral rights and interests” component of PP&E in the Consolidated Balance Sheets and included in the “All Other” category for segment reporting.