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6-K

Companhia De Saneamento Basico Do Estado De Sao Paulo-Sabesp (SBS)

6-K 2024-09-30 For: 2024-06-30
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Added on April 09, 2026

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

For August, 2024 (Commission File No. 1-31317)

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(Exact name of registrant as specified in its charter)

Basic Sanitation Company of the State of Sao Paulo - SABESP

(Translation of Registrant's name into English)

Rua Costa Carvalho, 300 São Paulo, S.P., 05429-900 Federative Republic of Brazil

(Address of Registrant's principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ___X___ Form 40-F ______

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1)__.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7)__.

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ______ No ___X___

If "Yes" is marked, indicated below the file number assigned to the registrant in connection with Rule 12g3-2(b):

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| Page 2 |

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| Earnings<br> Results 2Q24 |

| --- | | Page 3 | | Highlights | | --- |

Adjusted EBITDA^(*)^totaled R$ 2,970.5 million in 2Q24, up by R$ 778.1 million (+35.5%) over the R$ 2,192.4 million reported in 2Q23. Consequently, the adjusted EBITDA margin reached 54.2% compared to 44.8%.

Net income came to R$ 1,209.4 million in 2Q24, up by R$ 465.7 million (+62.6%) over the R$ 743.7 million recorded in 2Q23.

Revenue from sanitation services

Increase of R$ 740.6 million (+14.3%) over 2Q23, impacted by (i) a 9.6% tariff adjustment since May 2023; (ii) a 6.4% tariff adjustment since May 2024; and (iii) a 3.2% increase in total billed volume.

R$ million

2Q24 2Q23 Var. (R$) %
Revenues from sanitation services 5,932.9 5,192.3 740.6 14.3
Billed volume  (million m^3^) 1,080.3 1,047.2 33.1 3.2
Average tarifs (R$/m³) 5.5 5.0 0.5 10.8

Impacts from the exchange variation

In 2Q24, the exchange variation was negative, due to the appreciation of the U.S. dollar and Yen in the period, compared to a positive variation reported in 2Q23, as a result of the depreciation, as shown below.

2Q24 2Q23
Foreign currency debt - R$ million 2,899.4 2,475.7
Foreign currency debt as a percentage of total debt - % 13.3 13.2
U.S. dollar variation in the quarter - % 11.2 (5.1)
Yen variation in the quarter - % 4.7 (12.8)

The Company contracted derivative financial instruments (hedge) with Bank of America Merrill Lynch, Múltiplo S.A., CitiBank S.A., Itaú Unibanco Holding S.A., J.P. Morgan, and Banco Santander (Brazil) S.A., according to the Financial Risk Policy, used from April 10, 2024 to April 16, 2024, to mitigate the exchange risk, with a corresponding average cost of approximately DI+0.13% p.a. As of June 30, 2024, 12 swap transactions were in effect, with a notional value of US$ 272,009 thousand and ¥ 38,932,983 thousand to hedge the interest rate and exchange variation. The agreements are valid until December 2024.

Financial expenses related to foreign currency agreements, excluding the effects of the hedge operation, totaled R$ 246.9 million in 2Q24. Given that the hedge operations were contracted in April 2024, there was a period during which the risk of exchange rate variation was not protected, impacting R$ 104.0 million of this total. Hedge gains came to R$ 91.6 million in the period; therefore, total financial expenses, net of the hedge operation, totaled R$ 155.3 million.

^(*)^ excluding the IDP/AAPS/Construction Margin

| Earnings<br> Results 2Q24 |

| --- | | Page 4 | | 1. | Result for the period (Consolidated) | | --- | --- |

R$ million

2Q24 2Q23 Var. (R$) % 1H24 1H23 Var. (R$) %
Revenue from sanitation services 5,932.9 5,192.3 740.6 14.3 11,594.0 10,101.6 1,492.4 14.8
COFINS and PASEP/TRCF taxes (457.3) (301.0) (156.3) 51.9 (894.9) (691.4) (203.5) 29.4
(=) Revenue from sanitation services, net 5,475.6 4,891.3 584.3 11.9 10,699.1 9,410.2 1,288.9 13.7
Construction revenue 1,273.8 1,263.2 10.6 0.8 2,610.6 2,442.8 167.8 6.9
(=) Net operating income 6,749.4 6,154.5 594.9 9.7 13,309.7 11,853.0 1,456.7 12.3
Construction costs (1,245.2) (1,234.8) (10.4) 0.8 (2,551.9) (2,387.8) (164.1) 6.9
Costs and expenses (3,302.4) (3,909.4) 607.0 (15.5) (6,909.8) (7,083.2) 173.4 (2.4)
Other operating income (expenses), net 6.8 50.5 (43.7) (86.5) 13.9 65.1 (51.2) (78.6)
Equity results 7.9 10.0 (2.1) (21.0) 16.7 16.4 0.3 1.8
(=) Earnings before financial result, income tax, and social contribution 2,216.5 1,070.8 1,145.7 107.0 3,878.6 2,463.5 1,415.1 57.4
Financial result (461.9) (14.0) (447.9) 3,199.3 (800.1) (273.6) (526.5) 192.4
(=) Earnings before income tax and social contribution 1,754.6 1,056.8 697.8 66.0 3,078.5 2,189.9 888.6 40.6
Income tax and social contribution (545.2) (313.1) (232.1) 74.1 (1,045.8) (698.8) (347.0) 49.7
(=) Net income 1,209.4 743.7 465.7 62.6 2,032.7 1,491.1 541.6 36.3
Earnings per share (R$)* 1.77 1.09 2.97 2.18

* Number of shares = 683,509,869

The net revenue from sanitation services totaled R$ 5,475.6 million in 2Q24, an increase of 11.9% over 2Q23.

Costs and expenses totaled R$ 3,302.4 million, a decrease of R$ 607.0 million (-15.5%).

The Company recorded a net income of R$ 1,209.4 million in 2Q24, compared to R$ 743.7 million in 2Q23.

Adjusted EBITDA Reconciliation (Non-accounting measures)

R$ million

2Q24 2Q23 Var. (R$) % 1H24 1H23 Var. (R$) %
Net income 1,209.4 743.7 465.7 62.6 2,032.7 1,491.1 541.6 36.3
IDP - 529.6 (529.6) - - 529.6 (529.6) -
Agreement with AAPS - - - - 162.4 - 162.4 -
(=) Adjusted Net Income (excluding the IDP/AAPS) 1,209.4 1,273.3 (63.9) (5.0) 2,195.1 2,020.7 174.4 8.6
Income tax and social contribution 545.2 313.1 232.1 74.1 1,045.8 698.8 347.0 49.7
Financial result 461.9 14.0 447.9 3,199.3 800.1 273.6 526.5 192.4
Other operating income (expenses), net (6.8) (50.5) 43.7 (86.5) (13.9) (65.1) 51.2 (78.6)
Depreciation and amortization 789.4 670.9 118.5 17.7 1,563.2 1,327.9 235.3 17.7
Construction margin (28.6) (28.4) (0.2) 0.7 (58.7) (55.0) (3.7) 6.7
(=) Adjusted EBITDA (excluding the IDP/AAPS/Construction Margin)* 2,970.5 2,192.4 778.1 35.5 5,531.6 4,200.9 1,330.7 31.7
(%) Adjusted EBITDA margin (excluding the IDP/AAPS/Construction Margin) 54.2 44.8 51.7 44.6

* The EBITDA and EBITDA margin above are notthe same as those used for the purposes of covenants.

Adjusted EBITDA was R$ 2,970.5 million in 2Q24, with an adjusted EBITDA margin of 54.2% (44.8% in 2Q23).

| Earnings<br> Results 2Q24 |

| --- | | Page 5 | | 2. | Revenue from sanitation services | | --- | --- |

The gross operating income from sanitation services, which excludes construction revenue, totaled R$ 5,932.9 million in 2Q24, an increase of R$ 740.6 million (+14.3%) over the R$ 5,192.3 million recorded in 2Q23.

The main factors that led to the increase were:

· Tariff adjustment of 9.6% since May 2023;
· Tariff adjustment of 6.4% since May 2024; and
--- ---
· An increase of 3.2% in the total billed volume.
--- ---

Revenue from sanitation services increased by R$ 1,492.4 million (+14.8%) in 1H24, moving up from R$ 10,101.6 million to R$ 11,594.0 million, mainly due to:

· Tariff adjustment of 9.6% since May 2023;
· Tariff adjustment of 6.4% since May 2024; and
--- ---
· An increase of 4.5% in the total billed volume.
--- ---
3. TAX (COFINS AND PASEP/ TRCF)
--- ---

The increase in expenses is mainly due to the 14.8% increase in revenue and the adjustment in tax credits that occurred in 2Q23, non-recurring, in the amount of R$ 81.6 million.

4. construction revenue

Construction revenue increased by R$ 10.6 million, due to higher investments made.

In 1H24, construction revenue increased by R$ 167.8 million (+6.9%).

5. Billed volume

The following tables show the water and sewage billed volumes, on a quarter-over-quarter and year-over-year basis, per customer category:

WATER AND SEWAGE BILLED VOLUME^1^ PER CUSTOMER CATEGORY – million m^3^
Water Sewage Water + Sewage
Category 2Q24 2Q23 % 2Q24 2Q23 % 2Q24 2Q23 %
Residential 489.9 476.9 2.7 431.5 418.7 3.1 921.4 895.6 2.9
Commercial 47.7 47.7 - 46.3 45.5 1.8 94.0 93.2 0.9
Industrial 9.3 8.8 5.7 9.8 9.6 2.1 19.1 18.4 3.8
Public 13.3 12.1 9.9 12.1 10.9 11.0 25.4 23.0 10.4
Total retail 560.2 545.5 2.7 499.7 484.7 3.1 1,059.9 1,030.2 2.9
Wholesale^2^ 12.3 11.6 6.0 5.4 5.4 - 17.7 17.0 4.1
Grand Total 572.5 557.1 2.8 505.1 490.1 3.1 1,077.6 1,047.2 2.9
Olímpia 1.3 - - 1.4 - - 2.7 - -
Consolidated Grand Total 573.8 557.1 3.0 506.5 490.1 3.3 1,080.3 1,047.2 3.2
| Earnings<br> Results 2Q24 |

| --- | | Page 6 | | | Water | | | Sewage | | | Water + Sewage | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Category | 1H24 | 1H23 | Var. % | 1H24 | 1H23 | Var. % | 1H24 | 1H23 | Var. % | | Residential | 988.1 | 948.6 | 4.2 | 868.8 | 831.1 | 4.5 | 1,856.9 | 1,779.7 | 4.3 | | Commercial | 94.9 | 94.1 | 0.9 | 91.8 | 89.2 | 2.9 | 186.7 | 183.3 | 1.9 | | Industrial | 18.2 | 17.4 | 4.6 | 19.3 | 19.0 | 1.6 | 37.5 | 36.4 | 3.0 | | Public | 24.7 | 22.2 | 11.3 | 22.4 | 20.0 | 12.0 | 47.1 | 42.2 | 11.6 | | Total retail | 1,125.9 | 1,082.3 | 4.0 | 1,002.3 | 959.3 | 4.5 | 2,128.2 | 2,041.6 | 4.2 | | Wholesale^2^ | 23.9 | 23.8 | 0.4 | 11.1 | 10.8 | 2.8 | 35.0 | 34.6 | 1.2 | | Grand Total | 1,149.8 | 1,106.1 | 4.0 | 1,013.4 | 970.1 | 4.5 | 2,163.2 | 2,076.2 | 4.2 | | Olímpia | 2.6 | - | - | 2.9 | - | - | 5.5 | - | - | | Consolidated Grand Total | 1,152.4 | 1,106.1 | 4.2 | 1,016.3 | 970.1 | 4.8 | 2,168.7 | 2,076.2 | 4.5 |

  1. Not reviewed by external auditors

  2. Wholesale includes volumes of reuse water and non-domestic sewage

6. Costs, administrative & selling expenses

Costs, administrative and selling expenses decreased by R$ 607.0 million in 2Q24 (-15.5%).

Costs, administrative, and selling expenses as a percentage of net revenue from sanitation services were 60.3% in 2Q24 compared to 69.1% in 2Q23.

R$ million

2Q24 2Q23 Var. (R$) % 1H24 1H23 Var. (R$) %
Salaries, payroll charges and benefits, and Pension plan obligations 748.7 1,347.4 (598.7) (44.4) 1,457.1 2,091.6 (634.5) (30.3)
IDP - 529.6 (529.6) (100.0) - 529.6 (529.6) (100.0)
Salaries, payroll charges and benefits, and pension plan obligations (excluding the IDP) 748.7 817.8 (69.1) (8.4) 1,457.1 1,562.0 (104.9) (6.7)
General supplies 85.3 90.4 (5.1) (5.6) 176.1 177.9 (1.8) (1.0)
Treatment supplies 124.3 138.5 (14.2) (10.3) 265.6 303.4 (37.8) (12.5)
Services 663.2 643.1 20.1 3.1 1,346.0 1,268.1 77.9 6.1
Electricity 387.1 386.8 0.3 0.1 781.4 782.6 (1.2) (0.2)
General expenses 413.5 395.6 17.9 4.5 1,018.5 710.4 308.1 43.4
Agreement with AAPS - - - - 162.4 - 162.4 -
Share of the municipal government in the collection (São Paulo) 186.6 166.0 20.6 12.4 356.7 315.6 41.1 13.0
Share of the municipal government in the collection (other municipalities) 67.1 41.0 26.1 63.7 142.1 77.9 64.2 82.4
Other general expenses 159.8 188.6 (28.8) (15.3) 357.3 316.9 40.4 12.7
Tax expenses 19.3 19.3 - - 39.7 41.1 (1.4) (3.4)
Depreciation and amortization 789.4 670.9 118.5 17.7 1,563.2 1,327.9 235.3 17.7
Allowance for doubtful accounts 71.6 217.4 (145.8) (67.1) 262.2 380.2 (118.0) (31.0)
Costs, administrative & selling expenses 3,302.4 3,909.4 (607.0) (15.5) 6,909.8 7,083.2 (173.4) (2.4)
% of net revenue (excluding construction revenue) 60.3 79.9 64.6 75.3
% of net revenue (excluding construction revenue, IDP, and AAPS) 60.3 69.1 63.1 69.6

| Earnings<br> Results 2Q24 |

| --- | | Page 7 |


SALARIES, PAYROLL CHARGESAND BENEFITS, AND PENSION PLAN OBLIGATIONS

The R$ 598.7 million decrease (-44.4%) reported in 2Q24 was mainly due to the non-recurring provision recognized for employees who joined the Incentivized Dismissal Program (IDP) in 2Q23, of R$ 529.6 million. The average number of employees fell by 14.7%, mainly as a result of this program.

The aforementioned decrease was partially offset by the 2.0% application in February 2024 referring to the Career and Salary Plan, and the 2.77% salary adjustment in May 2024.

In 1H24, the decrease was R$ 634.5 million (-30.3%), as a result of the aforementioned factors.

TREATMENT SUPPLIES

Treatment supplies fell by R$ 14.2 million (-10.3%) in 2Q24 compared to 2Q23.

The decrease was mainly due to:

· Strategies implemented for the replacement and combined use of chemicals; and
· Optimization of water source usage, resulting in reduced use of algaecides, coagulants, and disinfectants.<br>The Company manages the use of chemicals and the advancement or retreat of the Production Systems by using systems that provide the best<br>cost-effectiveness.
--- ---

In 1H24, the decrease came to R$ 37.8 million (-12.5%).

SERVICES

Service expenses totaled R$ 663.2 million, an increase of R$ 20.1 million (+3.1%) over the R$ 643.1 million recorded in 2Q23. The main increases were:

· R$ 12.4 million with advertising and marketing expenses; and
· R$ 6.2 million with the hiring of outsourced labor.
--- ---

In 1H24, the decrease was R$ 77.9 million (-6.1%), mainly due to:

· R$ 47.7 million for the maintenance of water and sewage networks, connections, and systems;
· R$ 12.6 million with customer services; and
--- ---
· R$ 7.6 million with environmental compensation services.
--- ---

ELECTRICITY

Electricity expenses totaled R$ 387.1 million in 2Q24, an increase of R$ 0.3 million (+0.1%) over the R$ 386.8 million recorded in 2Q23. Of the total, the Free Market Tariffs (ACL) accounted for 51.9% of total expenses in 2Q24 (54.3% in 2Q23) while the Regulated Market Tariffs (ACR) accounted for 48.1% (45.7% in 2Q23).

The main factors that contributed to this variation were:

· An average decrease of 0.7%<br>in ACL prices (including Grid Market Tariffs - TUSD), with a 9.5% increase in consumption; and
· An average increase of 8.0% in ACR tariffs, with no significant variation in consumption.
--- ---

The R$ 1.2 million decrease (-0.2%) recorded in 1H24 was due to:

· An average decrease of 2.7% in ACL prices (including Grid Market Tariffs - TUSD), with a 1.8% increase<br>in consumption; and
| Earnings<br> Results 2Q24 |

| --- | | Page 8 | | · | An average increase of 8.3% in ACR tariffs, with no significant variation in consumption. | | --- | --- |

Consumption in Megawatt-hours in 2Q24 is distributed as follows: 66.1% in the the Free Market Tariffs (ACL) and 33.9% in the Regulated Market Tariffs (ACR), and in the same period of 2023, it represented 64.1% and 35.9%, respectively. The increase in contracting in the free market is in line with the strategy of optimizing the cost of electricity.

GENERAL EXPENSES

Increase of R$ 17.9 million (+4.5%), totaling R$ 413.5 million in 2Q24, compared to the R$ 395.6 million recorded in 2Q23, mainly from the higher provision for transfer to the Municipal Funds for Environmental Sanitation and Infrastructure, of R$ 46.7 million; partially offset by lower expenses with lawsuits, of R$ 26.7 million.

Expenses with municipal transfers totaled R$ 253.7 million in 2Q24, compared to the R$ R$ 207.0 million reported in 2Q23. Expenses with the use of water came to R$ 24.8 million in 2Q24, compared to the R$ 27.6 million recorded in 2Q23.

R$ million

MUNICIPAL TRANSFERS
Municipality 2Q24 2Q23 Var. (R$) % Start
São Paulo 186.6 166.0 20.6 12.4 Jun/10
Guarulhos 9.4 - 9.4 - Dec/23
Barueri 3.3 - 3.3 - May/23
Diadema 2.9 - 2.9 - Jul/23
Hortolândia 2.2 - 2.2 - Feb/24
Other municipalities 49.3 41.0 8.3 20.2
Total 253.7 207.0 46.7 22.6

The R$ 308.1 million increase (+43.4%) in 1H24 was due to:

· Provision of R$ 162.4 million in 1Q24, referring to the agreement with AAPS;
· Higher provision for transfer to the Municipal Funds for Environmental Sanitation and Infrastructure,<br>of R$ 105.3 million; and
--- ---
· Increase of R$ 42.0 million in expenses with lawsuits.
--- ---

Expenses with municipal transfers totaled R$ 498.8 million in 1H24, compared to the R$ R$ 393.5 million reported in 1H23. Expenses with the use of water came to R$ 49.8 million in 1H24, compared to the R$ 52.8 million recorded in 1H23.

DEPRECIATION AND AMORTIZATION

Increase of R$ 118.5 million (+17.7%) (R$ 235.3 million (+17.7%) in 1H24), due to the beginning of operations of intangible assets, totaling R$ 7.1 billion.

ALLOWANCE FOR DOUBTFULACCOUNTS

Decrease of R$145.8 million or 67.1%, from R$217.4 million in 2Q23 to R$71.6 million in 2Q24, as a result of another Feirão, structured collection actions, an increase in the volume of cuts and suppressions, and agreements with large consumers. The latter brought a non-recurring positive impact of R$76.5 million. The % PECLD/Sanitation Revenue closed the first half of 2024 at 2.3%, accumulated and excluding the non-recurring effect, it represented 2.9%, below the 3% presented in 2023.

The decrease came to R$ 118.0 million (-31.0%) in 1H24.

| Earnings<br> Results 2Q24 |

| --- | | Page 9 | | 7. | Other net operating income (expenses) | | --- | --- |

Decrease of R$ 43.7 million, mainly due to the higher application of contractual fines charged from suppliers in 2Q23, of R$ 45.5 million.

In 1H24, the R$ 51.2 million decrease was mainly due to (i) the R$ 43.0 million reduction in contractual fines charged from suppliers; and (ii) revenue from the sale of unusable materials in 1H23, non-recurring, of R$ 6.1 million.

8. Financial result

R$ million

2Q24 2Q23 Var. (R$) %
Financial expenses, net of revenue (379.5) (219.4) (160.1) 73.0
Monetary and exchange variations, net (82.4) 205.4 (287.8) (140.1)
Financial Result (461.9) (14.0) (447.9) 3,199.3

Financial expenses, net of revenue

R$ million

2Q24 2Q23 Var. (R$) %
Financial expenses
Interest and charges on domestic borrowings and financing (321.9) (254.0) (67.9) 26.7
Interest and charges on international borrowings and financing (30.8) (23.2) (7.6) 32.8
Other financial expenses (213.7) (96.4) (117.3) 121.7
Total financial expenses (566.4) (373.6) (192.8) 51.6
Financial revenue 186.9 154.2 32.7 21.2
Financial expenses, net of revenue (379.5) (219.4) (160.1) 73.0

The main impacts resulted from:

· Increase of R$ 67.9 million in interest and charges on domestic borrowings and financing, mainly<br>due to the 31st issue debentures and IFC 2023 fundraising;
· Increase of R$ 7.6 million in interest and charges on international borrowings and financing, due<br>to new IDB fundraising;
--- ---
· Increase of R$ 117.3 million in other financial expenses, mainly due to (i) an R$ 86.3 million increase<br>in interest on Public-Private Partnership - PPP; and (ii) an R$ 15.3 million increase in interest on lawsuits; and
--- ---
· Increase of R$ 32.7 million in financial revenues, mainly due to higher revenue on financial investments<br>in 2Q24, as a result of the higher cash balance.
--- ---
| Earnings<br> Results 2Q24 |

| --- | | Page 10 |

Monetary and exchange variations, net

R$ million

2Q24 2Q23 Var. (R$) %
Monetary and exchange variations on liabilities
Monetary variations on borrowings and financing (23.1) (38.1) 15.0 (39.4)
Exchange variations on borrowings and financing (216.1) 263.7 (479.8) (181.9)
Gains/(Losses) with derivative financial instruments 91.6 - 91.6 -
Other monetary variations (43.8) (71.2) 27.4 (38.5)
Total monetary and exchange variations on liabilities (191.4) 154.4 (345.8) (224.0)
Monetary and exchange variations on assets 109.0 51.0 58.0 113.7
Monetary and exchange variations, net (82.4) 205.4 (287.8) (140.1)

The negative effect of net monetary and exchange variations in 2Q24 was R$ 287.8 million, especially due to:

· A decrease of R$ 15.0 million in monetary variations on borrowings and financing, mainly because<br>of (i) a decrease in IPCA (from 1.56% in 2Q23 to 1.0% in 2Q24); and (ii) higher capitalization of monetary variation on debentures in<br>2Q24, of R$ 5.5 million;
· An increase of R$ 479.8 million in exchange variations on loans and financing, due to the appreciation<br>of the U.S. dollar and the Yen in 2Q24 (11.3% and 4.7%, respectively), compared to the depreciation occurred in 2Q23 (-5.1% and -12.8%,<br>respectively);
--- ---
· Gains with derivative financial instruments, of R$ 91.6 million;
--- ---
· A decrease of R$ 27.4 million in other monetary variations, mainly due to lower monetary variation<br>on Public-Private Partnership (PPP) in 2Q24, of R$ 40.6 million, partially offset by higher monetary variation on transfers to municipalities,<br>of R$ 7.4 million; and
--- ---
· An increase of R$ 58.0 million in monetary variations on assets, mainly due to higher monetary variation<br>on agreements in 2Q24.
--- ---
9. Income tax and social contribution
--- ---

In 2Q24, the increase was R$ 232.1 million (+74.1%), mainly due to:

· An increase of R$ 594.9 million in net operating revenue; and
· A decrease of R$ 607.0 million in costs and expenses.
--- ---

The factors above were partially offset by the negative variation of R$ 447.9 million in the financial result.

| Earnings<br> Results 2Q24 |

| --- | | Page 11 | | 10. | Indicators | | --- | --- | | a) | operational | | --- | --- | | Operational indicators* | 2Q24 | 2Q23 | % | | --- | --- | --- | --- | | Water Connections^1^ | 10,336 | 10,242 | 0.9 | | Sewage Connections^1^ | 8,833 | 8,728 | 1.2 | | Population Directly Served - Water^2^ | 28.1 | 28.1 | 0.0 | | Population Directly Served - Sewage^2^ | 24.9 | 24.8 | 0.4 | | Number of Employees | 10,158 | 12,221 | (16.9) | | Volume of water produced in the quarter^3^ | 770 | 734 | 4.9 | | Volume of water produced in the year^3^ | 1,542 | 1,467 | 5.1 | | IPM - Measured Water Loss (%) | 29 | 30 | (1.4) | | IPDt (liters/connection x day)^3^ | 262 | 256 | 2.3 |

  1. Active connections in thousand units at the end of the period.

2. In million inhabitants, at the end of the period. Does not include wholesale.

  1. Millions of m^3^.

^*^ Unaudited by external auditors

b) Economic
Economic variables at the close of the quarter* 2Q24 2Q23
--- --- ---
IPCA - Amplified Consumer Price Index^1^ 1.00 1.56
INPC - National Consumer Price Index^²^ 1.08 0.79
IPC - Consumer Price Index^²^ 0.69 0.60
DI - Interbank Deposit³ 10.51 13.65
U.S. dollar^4^ 5.56 4.82
Japanese yen^4^ 0.03 0.03
  1. Accrued in the quarter ended “May/24 x May/23”

  2. Accrued in the quarter (%)

  3. Average quarterly rate (%)^..^4. Ptax sale rate on the last day

^*^ Unaudited by external auditors

| Earnings<br> Results 2Q24 |

| --- | | Page 12 | | 11. | Borrowings and financing | | --- | --- |

R$ Thousand

DEBT PROFILE
INSTITUTION 2024 2025 2026 2027 2028 2029 2030 onwards TOTAL % of Total
Local currency
Caixa Econômica Federal 57,230 119,788 127,262 135,191 143,481 149,106 933,896 1,665,954 8
IDB 125,654 260,899 330,209 315,069 420,959 383,940 1,974,383 3,811,113 18
IFC 11,400 44,200 61,800 80,800 123,600 181,600 1,209,202 1,712,602 8
Debentures 362,440 1,319,166 1,219,530 1,395,509 668,031 1,303,628 3,231,065 9,499,369 44
BNDES 140,863 261,230 251,277 238,513 84,491 34,244 189,898 1,200,516 6
Other 284 568 142 - - - - 994 0
Leases (concession agreements, program contracts, and contract asset)^1^ 54,587 25,417 25,417 25,417 25,417 23,515 134,789 314,559 0
Leases (others)^2^ 25,187 86,164 60,423 1,524 8,566 - - 181,864 1
Interest and other charges 420,751 69,732 - - - - - 490,483 2
Total in local currency 1,198,396 2,187,164 2,076,060 2,192,023 1,474,545 2,076,033 7,673,233 18,877,454 87
Foreign currency
IDB 28,567 79,398 44,526 44,526 44,526 44,526 619,942 906,011 4
IBRD 16,898 33,796 33,796 33,796 33,796 49,070 420,928 622,080 3
JICA 74,145 148,290 148,290 148,290 148,290 148,182 527,697 1,343,184 6
Interest and other charges 28,079 - - - - - - 28,079 0
Total in foreign currency 147,689 261,484 226,612 226,612 226,612 241,778 1,568,567 2,899,354 13
Total 1,346,085 2,448,648 2,302,672 2,418,635 1,701,157 2,317,811 9,241,800 21,776,808 100
  1. Refers to work contracts signed as Assets Lease;

  2. Obligations related to leasing agreements, mainly vehicle leases.

Covenants

The table below shows the most restrictive clauses in 2Q24:

Covenants
Adjusted EBITDA / Adjusted Financial Expenses Equal to or higher than 2.80
EBITDA / Financial Expenses Paid Equal to or higher than 2.35
Adjusted Net Debt / Adjusted EBITDA Equal to or lower than 3.80
Net Debt / Adjusted EBITDA Equal to or lower than 3.50
Other Onerous Debt^1^ / Adjusted EBITDA Equal to or lower than 1.30
  1. “Other Onerous Debts” correspond to the sum of pension plan obligations and healthcare plan, installment payment of tax debts, and installment payment of debts with the electricity supplier.

In 2Q24 and 2Q23, the Company met the requirements of its borrowings and financing agreements.

| Earnings<br> Results 2Q24 |

| --- | | Page 13 | | 12. | Investments | | --- | --- |

Investments totaled R$ 1,296.6 million in 2Q24, while cash disbursed for investments, including from previous periods, totaled R$ 1,151.4 million.

The table below shows investments broken down by water and sewage:

R$ million

Water Sewage Total
Investments 549.2 747.4 1,296.6

In relation to 1H24, the investment made was R$2,717.0 million, of which R$1,217.6 million in water and R$1,499.4 million in sewage. The accumulated cash disbursement related to the investments made, including from previous periods, was R$1,738.8 million.

13. Public-Private Partnership - PPP

The chart below shows expenses with Public-Private Partnerships in 2Q24, compared to the figures reported in 2Q23:

R$ thousand

SÃO LOURENÇO PRODUCTION SYSTEM 2Q24 2Q23 Var. (R$) %
General Supplies 4,975.6 4,864.6 111.0 2.3
Services 10,498.8 10,264.5 234.3 2.3
General Expenses 1,374.9 1,344.2 30.7 2.3
Amortization 41,682.10 42,474.50 -792.4 -1.9
Financial Expenses 119,253.2 81,915.8 37,337.4 45.6
Total 177,784.60 140,863.60 36,921.00 26.2
ALTO TIETÊ PRODUCTION SYSTEM 2Q24 2Q23 Var. (R$) %
Services - 18,568.1 (18,568.1) (100.0)
Amortization 4,065.8 4,078.3 (12.5) (0.3)
Financial Expenses - 5,425.1 (5,425.1) (100.0)
Total 4,065.8 28,071.5 (24,005.7) (85.5)
Total expenses with PPP 181,850.40 168,935.10 12,915.30 7.6

| Earnings<br> Results 2Q24 |

| --- | | Page 15 |

Holding - Income Statement

Income Statement (R Thousand)
2Q23
Water Revenue 2,749,015
Sewage Revenue 2,417,527
TRCF 25,734
Gross Sanitation Services Revenue 5,192,276
Cofins Pasep e TRCF (300,973)
Net Sanitation Services Revenue 4,891,303
Construction Revenue 1,263,234
Net Operating Income 6,154,537
Construction Cost (1,234,832)
Salaries, charges and benefits and social security obligations (1,347,435)
PDI/PDVI/PRC/TAC (529,641)
Salaries and other personnel costs (817,794)
General materials (90,365)
Treatment materials (138,538)
Services (643,146)
Electrical energy (386,773)
General expenses (395,588)
Municipal participation in the collection (206,959)
São Paulo (166,018)
Other municipalities (40,941)
Water Use (27,645)
Other overhead expenses (160,984)
Tax expenses (19,315)
Depreciation and amortization (670,772)
Estimated losses with doubtful debts (217,426)
Costs, administrative and commercial expenses (5,144,190)
Other Operating Income 58,609
Other Operating Expenses (8,122)
Equity Income Result 10,047
Result Before Financial Result and Taxes 1,070,881
Financial Result (14,047)
Financial expenses (482,929)
Financial income 204,401
Exchange gain (loss), net 264,481
Result Before Taxes on Profit 1,056,834

All values are in US Dollars.

| Earnings<br> Results 2Q24 |

| --- | | Page 16 | | Income Tax and Social Contribution on Profit | (544,072) | (313,091) | | --- | --- | --- | | Current | (559,538) | (402,699) | | Deferred | 15,466 | 89,608 | | Net Income for the period | 1,209,465 | 743,743 |

| Earnings<br> Results 2Q24 |

| --- | | Page 17 |

Holding - Balance Sheet

Balance Sheet (R Thousand)
ASSETS 2Q23
Current assets
Cash and cash equivalents 1,327,173
Financial investments 929,178
Trade receivables 3,300,714
Related parties and transactions 219,803
Inventories 120,614
Restricted cash 37,873
Currrent  recoverable taxes 244,820
Derivative financial instruments -
Other assets 82,032
Total current assets 6,262,207
Noncurrent assets
Trade receivables 216,758
Related parties and transactions 951,059
Escrow deposits 195,530
Deferred income tax and social contribution -
National Water and Basic Sanitation Agency - ANA 5,138
Other assets 176,429
Equity investments 154,907
Investment properties 46,702
Contract assets 8,674,300
Intangible assets 40,399,382
Property, plant and equipment 371,209
Total noncurrent assets 51,191,414
TOTAL ASSETS 57,453,621
LIABILITIES AND EQUITY
Current liabilities
Trade payables 256,679
Borrowings and financing 2,578,954
Accrued payroll and related charges 900,340
Taxes and contributions 232,698
Dividends and interest on capital payable 709
Provisions 1,019,086
Services payable 588,456

All values are in US Dollars.

| Earnings<br> Results 2Q24 |

| --- | | Page 18 | | Public-Private Partnership – PPP | 439,289 | 207,467 | | --- | --- | --- | | Program Contract Commitments | 19,519 | 61,381 | | Other liabilities | 745,342 | 604,203 | | Total current liabilities | 7,084,784 | 6,449,973 | | Noncurrent liabilities | | | | Borrowings and financing | 19,357,368 | 16,126,235 | | Deferred income tax and social contribution | - | 101,914 | | Deferred Cofins and Pasep | 176,353 | 162,591 | | Provisions | 805,253 | 649,245 | | Pension obligations | 2,119,211 | 2,135,644 | | Public-Private Partnership – PPP | 2,786,976 | 2,616,942 | | Program Contract Commitments | 12,306 | 12,566 | | Other liabilities | 466,704 | 450,950 | | Total noncurrent liabilities | 25,724,171 | 22,256,087 | | Total liabilities | 32,808,955 | 28,706,060 | | Equity | | | | Paid-up capital | 15,000,000 | 15,000,000 | | Profit reserve | 14,617,966 | 12,078,963 | | Other comprehensive income | 146,362 | 177,643 | | Retained earnings | 2,032,761 | 1,490,955 | | Total equity | 31,797,089 | 28,747,561 | | TOTAL EQUITY AND LIABILITIES | 64,606,044 | 57,453,621 |

| Earnings<br> Results 2Q24 |

| --- | | Page 19 |


Holding - Cash Flow

Cash Flow (R Thousand)
Jan-Jun2024 Jan-Jun2023
Profit before income tax and social contribution 3,076,420 2,189,778
Adjustment for Net income reconciliation:
208,048 196,776
(228,916) (196,290)
2,618 5,304
1,560,758 1,327,916
743,263 616,940
286,855 (238,972)
(91,617) -
8,789 11,586
(131,699) (123,034)
262,163 380,231
(246,077) 529,245
(10,133) (16,381)
281,925 245,427
9,551 13,816
194,597 159,970
(58,641) (54,921)
97,760 103,842
5,965,664 5,151,233
Changes in assets
(140,981) (407,986)
41,754 4,834
(29,916) 3,633
188,247 (1,914)
(69,406) (36,865)
31,977 (17,109)
Changes in liabilities
(427,320) (411,979)
(2,985) 1,847
(121,420) (118,389)
(158,644) (240,857)
(96,703) (294,756)
(40,225) (473,658)
(106,674) (139,229)
12,256 2,868
Cash generated from operations 5,045,624 3,021,673

All values are in US Dollars.

| Earnings<br> Results 2Q24 |

| --- | | Page 20 | | | Interest paid | (862,183) | (902,553) | | --- | --- | --- | --- | | | Income tax and contribution paid | (1,019,269) | (606,093) | | Net cash generated from operating activities | | 3,164,172 | 1,513,027 | | Cash flows from investing activities | | | | | | Acquisition of contract assets and intangible assets | (1,699,943) | (1,505,652) | | | Purchases of tangible assets | (36,509) | (40,286) | | | Restricted cash | 4,306 | (399) | | | Financial investments | 146,071 | 828,829 | | | Investment | (16,430) | (6,304) | | Net cash used in investing activities | | (1,602,505) | (723,812) | | Cash flow from financing activities | | | | | | Loans and financing | | | | | Proceeds from loans | 3,079,812 | 833,095 | | | Repayments of loans | (1,394,065) | (917,982) | | | Payment of interest on shareholders' equity | (928,774) | (823,671) | | | Public-Private Partnership – PPP | (342,274) | (380,199) | | | Program Contract Commitments | (3,146) | (40,770) | | | Paid derivative financial instruments | (2,247) | - | | Net cash used in financing activities | | 409,306 | (1,329,527) | | Increase/(decrease) in cash and cash equivalents | | 1,970,973 | (540,312) | | Cash and cash equivalents at beginning of the year | | 838,338 | 1,867,485 | | Cash and cash equivalents at end of the year | | 2,809,311 | 1,327,173 | | Increase/(decrease) in cash and cash equivalents | | 1,970,973 | (540,312) |

| Earnings<br> Results 2Q24 |

| --- | | Page 21 |

Consolidated - Income Statement

Income Statement (R Thousand)
2Q23
Water Revenue 2,749,015
Sewage Revenue 2,417,527
TRCF 25,734
Gross Sanitation Services Revenue 5,192,276
Cofins Pasep e TRCF (300,973)
Net Sanitation Services Revenue 4,891,303
Construction Revenue 1,263,234
Net Operating Income 6,154,537
Construction Cost (1,234,832)
Salaries, charges and benefits and social security obligations (1,347,435)
PDI/PDVI/PRC/TAC (529,641)
Salaries and other personnel costs (817,794)
General materials (90,365)
Treatment materials (138,538)
Services (643,146)
Electrical energy (386,773)
General expenses (395,588)
Municipal participation in the collection (206,959)
São Paulo (166,018)
Other municipalities (40,941)
Water Use (27,645)
Other overhead expenses (160,984)
Tax expenses (19,315)
Depreciation and amortization (670,772)
Estimated losses with doubtful debts (217,426)
Costs, administrative and commercial expenses (5,144,190)
Other Operating Income 58,609
Other Operating Expenses (8,122)
Equity Income Result 10,047
Result Before Financial Result and Taxes 1,070,881
Financial Result (14,047)
Financial expenses (482,929)
Financial income 204,401
Exchange gain (loss), net 264,481
Result Before Taxes on Profit 1,056,834

All values are in US Dollars.

| Earnings<br> Results 2Q24 |

| --- | | Page 22 | | Income Tax and Social Contribution on Profit | (545,200) | (313,091) | | --- | --- | --- | | Current | (560,666) | (402,699) | | Deferred | 15,466 | 89,608 | | Net Income for the period | 1,209,465 | 743,743 |

| Earnings<br> Results 2Q24 |

| --- | | Page 23 |

Consolidated - Balance Sheet

Balance Sheet (R Thousand)
ASSETS 2Q23
Current assets
Cash and cash equivalents 1,327,173
Financial investments 929,178
Trade receivables 3,300,714
Related parties and transactions 219,803
Inventories 120,614
Restricted cash 37,873
Currrent  recoverable taxes 244,820
Derivative financial instruments -
Other assets 82,032
Total current assets 6,262,207
Noncurrent assets
Trade receivables 216,758
Related parties and transactions 951,059
Escrow deposits 195,530
Deferred income tax and social contribution -
National Water and Basic Sanitation Agency - ANA 5,138
Other assets 176,429
Equity investments 154,907
Investment properties 46,702
Contract assets 8,674,300
Intangible assets 40,399,382
Property, plant and equipment 371,209
Total noncurrent assets 51,191,414
TOTAL ASSETS 57,453,621
LIABILITIES AND EQUITY
Current liabilities
Trade payables 256,679
Borrowings and financing 2,578,954
Accrued payroll and related charges 900,340
Taxes and contributions 232,698
Dividends and interest on capital payable 709
Provisions 1,019,086
Services payable 588,456

All values are in US Dollars.

| Earnings<br> Results 2Q24 |

| --- | | Page 24 | | Public-Private Partnership – PPP | 439,289 | 207,467 | | --- | --- | --- | | Program Contract Commitments | 19,519 | 61,381 | | Other liabilities | 825,231 | 604,203 | | Total current liabilities | 7,167,622 | 6,449,973 | | Noncurrent liabilities | | | | Borrowings and financing | 19,357,368 | 16,126,235 | | Deferred income tax and social contribution | - | 101,914 | | Deferred Cofins and Pasep | 176,353 | 162,591 | | Provisions | 805,253 | 649,245 | | Pension obligations | 2,119,211 | 2,135,644 | | Public-Private Partnership – PPP | 2,786,976 | 2,616,942 | | Program Contract Commitments | 12,306 | 12,566 | | Other liabilities | 456,965 | 450,950 | | Total noncurrent liabilities | 25,714,432 | 22,256,087 | | Total liabilities | 32,882,054 | 28,706,060 | | Equity | | | | Paid-up capital | 15,000,000 | 15,000,000 | | Profit reserve | 14,617,966 | 12,078,963 | | Other comprehensive income | 146,362 | 177,643 | | Retained earnings | 2,032,761 | 1,490,955 | | Total equity | 31,797,089 | 28,747,561 | | TOTAL EQUITY AND LIABILITIES | 64,679,143 | 57,453,621 |

| Earnings<br> Results 2Q24 |

| --- | | Page 25 |

Consolidated - Cash Flow

Cash Flow (R Thousand)
Jan-Jun2024 Jan-Jun2023
Profit before income tax and social contribution 3,078,526 2,189,778
Adjustment for Net income reconciliation:
208,048 196,776
(228,916) (196,290)
2,618 5,304
1,563,225 1,327,916
743,263 616,940
286,855 (238,972)
(91,617)
8,789 11,586
(131,832) (123,034)
262,163 380,231
(246,077) 529,245
(16,807) (16,381)
281,925 245,427
9,551 13,816
194,597 159,970
(58,694) (54,921)
97,760 103,842
5,963,377 5,151,233
Changes in assets
(143,148) (407,986)
41,714 4,834
(30,080) 3,633
188,224 (1,914)
(63,425) (36,865)
31,977 (17,109)
Changes in liabilities
(429,281) (411,979)
(2,985) 1,847
(121,420) (118,389)
(158,635) (240,857)
(94,720) (294,756)
(34,335) (473,658)
(106,674) (139,229)
12,256 2,868
Cash generated from operations 5,052,845 3,021,673

All values are in US Dollars.

| Earnings<br> Results 2Q24 |

| --- | | Page 26 | | | Interest paid | (862,183) | (902,553) | | --- | --- | --- | --- | | | Income tax and contribution paid | (1,020,618) | (606,093) | | Net cash generated from operating activities | | 3,170,044 | 1,513,027 | | Cash flows from investing activities | | | | | | Acquisition of contract assets and intangible assets | (1,702,254) | (1,505,652) | | | Purchases of tangible assets | (36,509) | (40,286) | | | Restricted cash | 4,306 | (399) | | | Financial investments | 142,485 | 828,829 | | | Investment | (16,430) | (6,304) | | Net cash used in investing activities | | (1,608,402) | (723,812) | | Cash flow from financing activities | | | | | | Loans and financing | | | | | Proceeds from loans | 3,079,812 | 833,095 | | | Repayments of loans | (1,394,065) | (917,982) | | | Public-Private Partnership – PPP | (928,774) | (823,671) | | | Program Contract Commitments | (342,274) | (380,199) | | | Paid derivative financial instruments | (3,146) | (40,770) | | | Loans and financing | (2,247) | - | | Net cash used in financing activities | | 409,306 | (1,329,527) | | Increase/(decrease) in cash and cash equivalents | | 1,970,948 | (540,312) | | Cash and cash equivalents at beginning of the year | | 838,484 | 1,867,485 | | Cash and cash equivalents at end of the year | | 2,809,432 | 1,327,173 | | Increase/(decrease) in cash and cash equivalents | | 1,970,948 | (540,312) |

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the city São Paulo, Brazil.

Date: August 9, 2024

Companhia de Saneamento Básico do Estado de São Paulo - SABESP
By: /s/  Catia Cristina Teixeira Pereira    <br><br> <br>* * *
Name: Catia Cristina Teixeira Pereira<br><br><br> <br>Title: Chief Financial Officer and Investor Relations Officer

FORWARD-LOOKING STATEMENTS

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates of future economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.