By Brazil Stock Guide — Cosan has hired BTG Pactual as financial adviser to evaluate strategic alternatives for its stake in Rumo, placing the railway operator at the center of the holding company’s efforts to reduce leverage and optimize its capital structure.
Cosan is controlled by businessman Rubens Ometto together with investment funds managed by BTG Pactual and Perfin.
In a securities filing on Monday, the company said it is assessing “potential alternatives” related to its investment in Rumo as part of its capital structure optimization strategy. It added, however, that discussions remain at an early stage and that no decision has been made regarding a potential transaction, its structure or its terms.
The filing lends official confirmation to market speculation that began after O Globo reported that Cosan had launched a process to gauge interest in the railway operator. The newspaper initially identified Ultra, Grupo México, Inpasa, Bunge, Opportunity, GIC, Votorantim, Itaúsa and Suzano/Feffer as potential bidders. A subsequent report said Ultra had withdrawn from the process, leaving eight parties still in the running, although their identities were not disclosed.
Rumo’s ownership structure helps explain both the strategic appeal of the asset and the complexity of any potential transaction. Cosan directly owns 20.33% of the company’s share capital, while Chairwoman Júlia Arduini holds an additional 3.82%. Their stakes are tied together through a shareholders’ agreement that gives them control of the company. Roughly 75.7% of Rumo’s shares are free-floating, making it one of Brazil’s most liquid infrastructure stocks.
That structure leaves room for multiple transaction formats. Cosan could reduce its stake while preserving influence over Rumo, provided the control agreement and governance framework remain intact. A broader sale involving the controlling block, however, would likely require more complex negotiations, including discussions over control premiums, shareholders’ agreements and governance rights.
Investors have increasingly pressured Cosan to simplify its corporate structure, reduce leverage and unlock value from its portfolio of strategic assets. Rumo is widely viewed as one of the group’s crown jewels, operating Brazil’s largest railway network for agricultural exports and serving key logistics corridors linking the country’s grain-producing regions to ports.
For Rumo, the arrival of a new strategic or financial shareholder could reshape its ownership structure at a time when the company continues to invest heavily in network expansion and capacity. The railway operator remains a unique infrastructure asset in Brazil, combining scale, high barriers to entry and direct exposure to the country’s agribusiness sector.
While the appointment of BTG suggests Cosan has moved beyond preliminary internal discussions, the company emphasized that no transaction has been approved. For investors, the key takeaway is that deleveraging efforts have now extended to one of Cosan’s most valuable assets, although the size, structure and timing of any potential deal remain uncertain.