Business Context and Reporting Period
Company: Companhia de Saneamento Básico do Estado de São Paulo - SABESP
Filing Type: Form 6-K (Report of Foreign Issuer)
Date of Filing: February 4, 2026
Reporting Period: Full Year 2025 (disclosed in February 2026)
SABESP, a publicly-held Brazilian sanitation company, reported on its 2025 capital expenditure performance and progress toward universal access to basic sanitation under the URAE-1 Contract concession.
Key Financial and Operational Metrics
Capital Expenditure (2025): R$15.2 billion (preliminary, non-audited)
Capital Expenditure (2024): R$6.9 billion
YoY CapEx Growth: 2.2x increase
H2 2025 vs H1 2025 CapEx Growth: 36% increase
Operational Targets (U-Factor) Achieved in 2025:
- Water Economies (ICA): 664,161 new connections (152% of 2024–2025 target)
- Sewage Economies (ICE): 781,464 new connections (133% of 2024–2025 target)
- Units for Sewage Treatment (IEC): 1,372,105 new connections (134% of 2024–2025 target)
Population Impact:
- Water service access expanded for 1,819,342 people
- Sewage collection access expanded for 2,138,670 people
- Sewage treatment access expanded for 3,759,534 people
Employment: Generated more than 40,000 direct and indirect jobs.
Note: The filing does not provide specific values for revenue, net profit, operating margins, cash flow, debt levels, or liquidity ratios.
Material Changes Versus Prior Period
The most significant material change is the acceleration of infrastructure investment. Capital expenditures in 2025 (R$15.2 billion) were more than double those of 2024 (R$6.9 billion). This acceleration was particularly pronounced in the second half of 2025, which saw a 36% increase in investment compared to the first half of the year. Consequently, the company surpassed all U-Factor targets for the 2024–2025 period.
Guidance, Outlook, and Risks
Outlook: The company reaffirmed its commitment to achieving universal access to basic sanitation by 2029 for the entire population within the URAE-1 Contract concession area.
Risks and Contingencies:
- Forward-Looking Statements: The filing contains forward-looking statements regarding future economic circumstances, industry conditions, and performance. Actual results may differ materially due to changes in assumptions, general economic conditions, and operating factors.
- Data Validation: The number of economies and U-Factor targets are subject to audit and validation by the regulatory authority.
- Financial Data Status: The reported investment figure is preliminary and non-audited.
Key Facts for Investor Verification
- Verify the final audited capital expenditure figure for 2025 against the preliminary R$15.2 billion reported.
- Confirm the regulatory validation of the reported U-Factor targets (Water, Sewage, and Treatment economies).
- Assess the impact of the 2.2x increase in CapEx on the company's future debt levels and liquidity, as these metrics are not disclosed in this filing.
- Monitor progress toward the 2029 universal access goal in subsequent filings.