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Financial Risk Management (Tables) | 12 Months Ended
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Dec. 31, 2020
Financial Risk Management |
Schedule of sales percentage from significant customer | The Company depends on three customers for majority of its revenues. The Company’s sales to these three customers as a percentage of revenues are as follows:
|  | Year Ended December 31, |
|  | 2018 |  | 2019 |  | 2020 |
Customer A and its affiliates |  | 28.1 | % | 29.5 | % | 32.6 | %
Customer B and its affiliates |  | 12.6 | % | 8.9 | % | 6.6 | %
Customer C |  | 5.7 | % | 5.6 | % | 12.7 | %
Schedule of accounts receivable percentage from significant customers | The percentage of the Company’s accounts receivable accounted by customers, those representing more than 10% of total accounts receivable balance, is summarized as follows:
|  | December 31, |  | December 31, |
|  | 2019 |  | 2020 |
Customer A and its affiliates |  | 37.7 | % | 36.3 | %
Customer B and its affiliates |  | 7.9 | % | 8.2 | %
Customer C |  | 5.8 | % | 13.6 | %

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