| 6. | SUPPLEMENTAL CASH FLOW INFORMATION |
For purposes of the consolidated statement of cash flows, the Company considers all highly liquid temporary investments with an original maturity of three months or less at the time of purchase to be cash equivalents. The cash flow statement has been prepared using the indirect method, which requires a series of adjustments to reconcile net income for the period to net cash flows from operating activities.
Non-cash investing and financing activities for the years ended December 31, 2017, 2016 and 2015 are presented below:
| | 2017 | | | 2016 | | | 2015 | |
Unpaid acquisition of PPE | | | 202,911 | | | | 47,198 | | | | 25,608 | |
Leasing for PPE acquisition | | | - | | | | 750,389 | | | | - | |
Principal payment of financial lease(1) | | | 37,952 | | | | - | | | | - | |
Financial charges capitalization | | | 48,975 | | | | 39,735 | | | | 22,676 | |
Increase in financial assets through a decrease in Other Receivables (2) | | | - | | | | 144,773 | | | | - | |
(1) | Paid through the offset of account receivables hold with the creditors. (See Note 13) |
Note 13 includes a reconciliation between the initial and final balance of the financial liabilities arising from financing activities.