PROPERTIES, PLANTS AND EQUIPMENT (Tables)

3 Months Ended

Mar. 31, 2022

PROPERTIES, PLANTS AND EQUIPMENT

Major components of the Company's properties

	Antimony Segment						Zeolite Segment			Precious Metals
March 31, 2022	USAC			USAMSA			BRZ			Segment			TOTAL
Plant and equipment	$	1,713,328		$	8,774,212		$	3,881,612		$	1,338,774		$	15,707,926
Buildings		243,248			613,449			1,093,554			-			1,950,251
Mineral rights and interests		-			848,012			-			-			848,012
Land and other		2,431,387			2,478,044			16,753			-			4,926,184
		4,387,963			12,713,717			4,991,919			1,338,774			23,432,373
Accumulated depreciation		(2,742,278	)		(5,761,012	)		(3,359,362	)		(467,597	)		(12,330,249	)
	$	1,645,685		$	6,952,705		$	1,632,557		$	871,177		$	11,102,124

	Antimony Segment						Zeolite Segment			Precious Metals
December 31, 2021	USAC			USAMSA			BRZ			Segment			TOTAL
Plant and equipment	$	1,684,977		$	8,757,775		$	3,853,056		$	1,330,394		$	15,626,202
Buildings		243,248			613,449			986,736			-			1,843,433
Mineral rights and interests		-			848,012			-			-			848,012
Land and other		2,431,387			2,478,044			16,753			-			4,926,184
		4,359,612			12,697,280			4,856,545			1,330,394			23,243,831
Accumulated depreciation		(2,732,809	)		(5,622,555	)		(3,314,658	)		(440,076	)		(12,110,098	)
	$	1,626,803		$	7,074,725		$	1,541,887		$	890,318		$	11,133,733