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2. Concentrations of Risk (Details 1) - USD ($) | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Accounts Receivable | $ 265,843 | $ 331,333
Total percentage of receivables | 62.90% | 72.87%
Gopher Resources |  |
Accounts Receivable | $ 141,570 | $ 0
Earth Innovations Inc |  |
Accounts Receivable | 0 | 62,019
Teck American Inc |  |
Accounts Receivable | 80,946 | 227,239
Milestone AV Technologies Inc. |  |
Accounts Receivable | 0 | 42,075
Wildfire Construction |  |
Accounts Receivable | $ 43,327 | $ 0

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