4. Revenue Recognition

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Revenue Recognition

Products consist of the following:

● Antimony: includes antimony oxide, sodium antimonate, antimony trisulfide, and antimony metal

● Zeolite: includes coarse and fine zeolite crushed in various sizes

● Precious Metals: includes unrefined and refined gold and silver

Sales of products for the three and nine month periods ended September 30, 2020 and 2019, were as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Antimony	$	477,273	$	1,080,871	$	2,509,183	$	4,294,281
Zeolite		481,126		651,563		1,653,201		2,081,751
Precious metals		48,832		55,500		173,029		140,550
	$	1,007,231	$	1,787,934	$	4,335,413	$	6,516,582

The following is sales information by geographic area based on the location of customers for the three and nine month periodss ended September 30, 2020 and 2019:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
United States	$	891,090	$	1,570,364	$	3,893,374	$	5,498,640
Canada		116,141		217,570		442,039		544,350
Mexico		-		-		-		473,592
	$	1,007,231	$	1,787,934	$	4,335,413	$	6,516,582

Sales of products to significant customers were as follows for the three and nine month periods ended September 30, 2020 and 2019:

	For the Three Months Ended						For the Nine Months Ended
Sales to Three	September 30,			September 30,			September 30,			September 30,
Largest Customers	2020			2019			2020			2019
Axens North America				$	128,805
GE Chaplin, Inc.	$	114,075			-		$	404,447
Mexichem Specialty Compounds Inc.		-			314,008			523,660		$	1,373,533
Kohler Corporation		131,360			-			345,899			1,028,624
Nyacol Nanotechnologies		105,865			374,070			-			778,394
	$	351,300		$	816,883		$	1,274,006		$	3,180,551
% of Total Revenues		35	%		46	%		29	%		49	%

Accounts receivable from largest customers were as follows at September 30, 2020 and December 31, 2019:

Largest Accounts Receivable	September 30, 2020			December 31, 2019
Nutreco Canada Inc.	$	14,172		$	21,219
Earth Innovations Inc.		24,570			-
Axens North America Inc.		15,770			-
Lake Shore Gold		-			27,854
Commerce Industrial Chemical		-			54,684
	$	54,512		$	103,757
% of Total Receivables		24.55	%		36.48	%

Our trade accounts receivable balance related to contracts with customers was $222,054 at September 30, 2020 and $284,453 at December 31, 2019. Our products do not involve any warranty agreements and product returns are not typical.