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17. Business Segments (Details 2) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Revenues | $ 9,034,403 | $ 10,229,978
Depreciation and amortization | 904,844 | 968,888
Income (loss) from operations | 547,036 | (959,699)
Other income (expense) | (6,143) | (174,695)
Income tax benefit | 332,332 | 0
NET INCOME (LOSS) | 873,225 | (1,134,394)
USA Antimony [Member] |  |
Revenues | 6,113,014 | 7,588,470
Depreciation and amortization | 52,681 | 57,761
Income (loss) from operations | 3,046,782 | 1,965,573
Other income (expense) | (8,051) | (35,853)
Income tax benefit | 0 | 0
NET INCOME (LOSS) | 3,038,731 | 1,929,720
Mexico Antimony [Member] |  |
Revenues | 0 | 0
Depreciation and amortization | 595,318 | 623,899
Income (loss) from operations | (3,148,092) | (3,579,810)
Other income (expense) | 13,890 | (126,149)
Income tax benefit | 332,332 | 0
NET INCOME (LOSS) | (2,801,870) | (3,705,959)
Antimony [Member] |  |
Revenues | 6,113,014 | 7,588,470
Depreciation and amortization | 647,999 | 681,660
Income (loss) from operations | (101,310) | (1,614,237)
Other income (expense) | 5,839 | (162,002)
Income tax benefit | 332,332 | 0
NET INCOME (LOSS) | 236,861 | (1,776,239)
Precious Metals [Member] |  |
Revenues | 254,445 | 374,872
Depreciation and amortization | 68,042 | 64,499
Income (loss) from operations | 186,403 | 310,373
Other income (expense) | 0 | 0
Income tax benefit | 0 | 0
NET INCOME (LOSS) | 186,403 | 310,373
Zeolite (Member) |  |
Revenues | 2,666,944 | 2,266,636
Depreciation and amortization | 188,803 | 222,729
Income (loss) from operations | 461,943 | 344,165
Other income (expense) | (11,982) | (12,693)
Income tax benefit | 0 | 0
NET INCOME (LOSS) | $ 449,961 | $ 331,472

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