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10. Related-Party Balances and Transactions (Tables) | 12 Months Ended
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Dec. 31, 2017
Related-party Balances And Transactions Tables |
Accounts receivable, interest on capital payable, revenue and expenses with the Sao Paulo State Government |
| December 31, 2017 | December 31, 2016
Accounts receivable |  |
Current: |  |
Sanitation services (i) | 118,441 | 134,005
Allowance for losses (i) | (35,114) | (56,624)
Reimbursement for retirement and pension benefits paid (G0): |  |
- monthly flow (payments) (ii) and (vi) | 22,968 | 22,696
- GESP Agreement – 2008 (ii) and (vi) | 20,099 | 56,512
- GESP Agreement – 2015 (vii) | 54,379 | 39,816
“Se Liga na Rede” program (l) | - | 6,148
Total current | 180,773 | 202,553
Noncurrent: |  |
Agreement for the installment payment of sanitation services | 22,625 | -
Reimbursement for retirement and pension benefits paid (G0): |  |
- GESP Agreement – 2008 (ii) and (vi) | - | 18,838
- GESP Agreement – 2015 (vii) | 611,762 | 650,318
Total noncurrent | 634,387 | 669,156
Total receivables from shareholders | 815,160 | 871,709
Assets: |  |
Sanitation services | 105,952 | 77,381
Reimbursement of additional retirement and pension benefits (G0) | 709,208 | 788,180
“Se Liga na Rede” program (l) | - | 6,148
Total | 815,160 | 871,709
Liabilities: |  |
Interest on capital payable to related parties | 300,717 | 351,788
Other (g) | 1,367 | 1,853
| 2017 | 2016 | 2015
Revenue from sanitation services | 462,989 | 445,726 | 357,512
Payments received from related parties | (471,081) | (424,549) | (338,471)
Receipt of GESP reimbursement referring to Law 4,819/58 | (192,889) | (139,472) | (121,709)
Loan agreement through credit facility |
SPE | Principal disbursed amount | Interest balance | Total | Interest rate | Maturity
Attend Ambiental | 5,400 | 3,877 | 9,277 | SELIC + 3.5 % a.a. | (i)
Aquapolo Ambiental | 5,629 | 5,209 | 10,838 | CDI + 1.2% a.a. | (ii)
Aquapolo Ambiental | 19,000 | 11,502 | 30,502 | CDI + 1.2% a.a. | (iii)
Total | 30,029 | 20,588 | 50,617 |  |
(i) The loan agreement with SPE Attend Ambiental S/A matures within 180 days, from the date when the respective amount is available in the borrower’s account, renewable for the same period. The credit has been overdue since May 11, 2015 and is subject to contractual default charges (inflation adjustment considering the IGP-M variation, 2% fine and default interest of 1% p.m.). The agreement has been renegotiated between the parties. (ii) The R$ 5,629 loan agreement originally expired on April 30, 2016. As of February 10, 2016, an amendment to the agreement changed the payment schedule for four annual installments, the first of which maturing on December 30, 2018 and the last on December 30, 2021; and (iii) The loan agreement totaling R$ 19,000 originally expired on April 30, 2015, was extended to October 30, 2015 and on November 25, 2015 a new amendment changed the payment schedule for three annual installments, the first of which maturing on December 30, 2021 and the last on December 30, 2023.

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