4. Consolidated cash flow statement

Balance of Revenues and Charges

6,575,479

6,982,320

7.

Taxes

-146,998

-244,456

Adjustments for

4.2.

Depreciation

14,719,532

14,084,250

2.2.

Changes in provisions

-80,696

-342,791

14,638,836

13,741,459

Changes in working capital:

1.2.2.

Receivables

-1,149,320

1,466,927

2.4.

Current liabilities

25,066,344

-5,789,470

23,917,023

-4,322,543

Cash flow from business operations

44,984,339

16,156,780

6.1.

Financial Revenues

152,793

-12,235

6.2.

Financial charges

-184,876

-2,514,370

-32,082

-2,526,605

Total cash flow from operating activities

44,952,257

13,630,176

Cash flow from investing activities

1.1.2.

Investments in tangible fixed assets

-13,411,523

-13,249,060

1.1.3.

Investments in financial fixed assets

-

-544,657

1.1.3.

Disinvestments financial fixed assets

38,322

975,150

Total cash flow from investing activities

-13,373,201

-12,818,567

Cash flow from financing activities

2.3.

Repayment of long-term liabilities

-

-16,324,810

Total cash flow from financing activities

-

-16,324,810

Movement in liquid assets

31,579,056

-15,513,203

1.2.4.

Opening balance of liquid assets

66,512,116

82,025,318

Change in liquid assets

31,579,056

-15,513,203