SABESP Revenue Grows 9.4% Despite Weather Headwinds as Infrastructure Push Strains Margins
Brazil's largest water utility reports expanding coverage and record capital deployment, but EBITDA falls 2.3% on customer service investments and inflationary pressures.
Revenue Growth Masks Operational Complexity
Companhia de Saneamento Básico do Estado de São Paulo (SABESP), Brazil's largest water and sewage utility, reported adjusted net revenue of BRL 3.5 billion for the second quarter of 2026, representing 9.4% year-over-year growth driven by January tariff adjustments and customer expansion (earnings call, 2026-08-13). However, adjusted EBITDA declined 2.3% to BRL 3.5 billion with margins compressing to 58.3%, reflecting the operational challenges of the company's post-privatization transformation.
CFO Daniel Szlak attributed the revenue performance to an 8.7% price contribution from the 2026 tariff cycle and a 1.1% volume contribution from new connections, partially offset by a negative 3.1% mix effect. Weather played a significant role, with average temperatures 1.1% lower year-over-year dampening consumption. Total water production fell 4.3% to 779 million cubic meters, also impacted by night pressure management implemented for approximately 10 hours daily to enhance system resilience (earnings call, 2026-08-13).
Social Programs Expand as Margins Face Pressure
A notable development was the expansion of SABESP's social tariff program, which now covers roughly 2 million units—a 15% year-over-year increase that nearly doubles pre-privatization levels. "This reflects our commitment to expanding access to sanitation services while supporting vulnerable populations," Szlak noted, adding that these discounts are "contemplated within the regulatory framework and are expected to be addressed in future tariff reviews" (earnings call, 2026-08-13).
The EBITDA margin compression stemmed from several factors: customer experience initiatives including expanded service channels and call center enhancements, inflationary pressures on chemicals totaling approximately BRL 28 million, and a difficult comparison against Q2 2025, which benefited from BRL 230 million in legal accrual reversals. Szlak indicated that excluding one-time factors, "underlying EBITDA would have grown close to 20% year-over-year in the quarter" (earnings call, 2026-08-13).
Investment Cycle Drives Balance Sheet Evolution
Capital expenditure execution remained a highlight, with year-to-date investments reaching BRL 7.5 billion, up roughly 16% versus the prior year. The company ended the quarter with more than BRL 40 billion in contracted backlog through 2029. Two new sewage treatment plants—Caieiras and Água Vermelha—were delivered, adding 0.4 cubic meters per second of treatment capacity and providing 127,000 additional people with access to treated sewage (earnings call, 2026-08-13).
The aggressive investment program has reshaped SABESP's balance sheet. Net debt stood at BRL 34 billion with a net debt-to-EBITDA ratio of 2.5x, up from lower historical levels as the company finances universal access goals. Adjusted net income totaled BRL 1.2 billion, down year-over-year primarily due to higher interest expenses from the increased debt load used to fund infrastructure expansion. The company's asset base has grown from approximately BRL 55 billion to BRL 70 billion year-over-year (earnings call, 2026-08-13).
Safety Takes Center Stage
CEO Carlos Piani emphasized operational scale as both an achievement and a challenge. The workforce has expanded 83% to approximately 55,000 people since privatization two years ago, while active construction sites have increased 7.5x to around 1,500. "This extraordinary increase in activity is what allow us to accelerate universalization but it also materially increases the complexity of our operations and our exposure to safety risks," Piani stated (earnings call, 2026-08-13).
The company also received an MSCI ESG rating upgrade to BBB during the quarter, recognizing progress in integrating sustainability into strategy and operations.
This article was generated by MarginX from the earnings call on 2026-08-13. It is not investment advice.