SOND3

Sondotécnica Engenharia de Solos S.A. is a Brazilian engineering consulting company founded in 1954, initially as a limited liability company and converted into a publicly traded company in 1980. Over its history, it has consolidated a portfolio of more than 3,500 contracts executed for around 400 clients in different infrastructure and urban development segments. The company’s shares are traded on B3 under the tickers SOND3, SOND5 and SOND6, reflecting its status as a public company and its presence in the Brazilian capital markets. With revenue of around R$ 211 million in the last reported fiscal year, the company positions itself as an engineering consultancy with diversified operations in sectors such as transportation, sanitation, industry, housing, energy, environment, irrigation, urban development, and oil & gas.

Sondotécnica Engenharia de Solos’ core activity is the provision of engineering consulting services, covering studies and designs, supervision and inspection of works, as well as project management at different stages of the implementation cycle. The company develops preliminary studies, master plans, feasibility studies, basic and executive designs, and also works in supervising execution, managing projects and works, and structuring and conducting privatization and infrastructure concession processes. Its scope also includes preparing and coordinating environmental studies and providing technical support to obtain the licenses required for the implementation and operation of projects, including manufacturing inspection, technical specification, equipment assembly, pre-operational tests and commissioning, always focused on engineering consulting applied to large public and private projects.

The company’s operating structure is organized by business segments and types of service. In 2024, most of its revenue came from the transportation area, followed by sanitation, housing, urban infrastructure and other related segments. From the standpoint of service type, management and supervision of works and projects accounted for the majority of revenue compared with design activities. Sondotécnica Engenharia de Solos has proven technical capability in project management, planning, and inspection, with emphasis on metro-rail transport infrastructure projects and related urban mobility works. This specialization positions it to compete in national and international tenders, often in consortia or independently, both with Brazilian companies and larger foreign groups.

The company has a broad geographic presence, with headquarters in the State of Rio de Janeiro and offices in Brazil in São Paulo and Salvador, as well as bases abroad in Luanda, Angola, and Miami, in the United States. Its international operations have already reached countries in Latin America, the Caribbean, Africa and the Middle East, including Mexico, Guatemala, El Salvador, Panama, Colombia, Peru, Paraguay, Haiti, the Dominican Republic, Venezuela, Bolivia, Uruguay, Argentina, Senegal, Nigeria, Ghana, Equatorial Guinea, Congo, Angola and Iraq. Despite this reach, revenue remains concentrated in the Brazilian market, which accounted for 99.7% of net revenue in 2024, while Angola represented 0.3%. The company also structures its foreign operations through its wholly owned subsidiary Sondotecnica International Co., which holds interests in companies abroad, including Sondotecnica USA Corp in Florida, a shareholder of STZ Engineering, LLC, focused on providing engineering services in the North American market.

Sondotécnica Engenharia de Solos’ client base is composed of public entities at the municipal, state and federal levels, as well as private companies from various infrastructure sectors. In 2023, the Companhia de Desenvolvimento Habitacional e Urbano do Estado de São Paulo (CDHU) accounted for more than 10% of net revenue, through the contracting of engineering consulting services aimed at project design, inspection and supervision of third-party project execution, and construction management. The company participates in tenders and RFPs in both the public and private sectors, often structuring consortia to meet technical and scale requirements for large contracts. There is no dependence on specific suppliers for service delivery, as the main input is the intellectual capital of its technical staff, composed mostly of engineers, architects, geologists, economists, technicians, designers and CAD technicians.

From a regulatory standpoint, Sondotécnica Engenharia de Solos is subject to the legislation applicable to public procurement and the engineering services it performs, with emphasis on Law 14,133/2021, which governs public tenders and administrative contracts in Brazil. In environmental and social matters, its projects and services must comply with the rules and licensing requirements established by competent agencies, especially when they involve environmental studies, support for obtaining licenses and supervision of works in sensitive sectors such as sanitation, transport and energy. Abroad, ongoing contracts, such as those in Angola, comply with local legislation on competition, environmental, corporate and anti-corruption matters. The company also maintains registration with the Ministry of Defense, valid until 2027, as a private entity performing aerial surveying, category “A”, a certification that expands its ability to conduct specialized surveys and field studies.

In terms of management and quality, Sondotécnica Engenharia de Solos operates under an Integrated Management System certified under ISO 9001:2015 (Quality Management), ISO 14001:2015 (Environmental Management) and ISO 45001:2018 (Occupational Health and Safety Management), with the current certificates valid until August 2025. These certifications cover engineering consulting and design services, project management, and works supervision and inspection, including at the international level. The company invests in innovation through TECHLAB, a hub located in São Paulo focused on digital transformation and the development of solutions in building information modeling (BIM) and the use of digital models in infrastructure projects, an area in which it has established itself as one of the pioneers in Brazil. The company is a partner of BIM Forum Brasil, reinforcing its integration with the construction value chain that adopts BIM practices as a technological standard.

In the environmental, social and governance (ESG) field, the company treats these topics as strategic pillars for medium- and long-term value creation. Its ESG management structure includes corporate policies on compliance, anti-corruption and third-party engagement, as well as a Code of Ethics and Conduct developed in partnership with an external consultancy, which guides relations with employees and other stakeholders. Since 2022, Sondotécnica Engenharia de Solos has been a signatory of the UN Global Compact Network Brazil, committing to the implementation of the ten principles related to human rights, labor, environment and anti-corruption, with a focus on Sustainable Development Goals considered material to the business, such as SDG 6 (clean water and sanitation), 8 (decent work and economic growth), 9 (industry, innovation and infrastructure) and 11 (sustainable cities and communities). In 2023, it joined Instituto Ethos and adhered to the Business Pact for Integrity and Against Corruption, obtaining the Clean Company seal. The company is preparing its first ESG report for the year 2024, which should include a materiality matrix and key performance indicators, although it will not yet incorporate, in this first cycle, TCFD recommendations or a greenhouse gas emissions inventory.