Cosan Opens Talks to Sell Control of Rail Operator Rumo

Brazilian conglomerate Cosan has opened negotiations to sell control of Rumo, Brazil’s largest independent railway operator, according to single-source reporting from O Globo columnist Lauro Jardim. The talks are being handled by BTG Pactual, the Brazilian investment bank, O Globo reported on May 31.

The report named several potential bidders or interested investors, including Ultra, Grupo México, Inpasa, Bunge, Opportunity, Singapore sovereign wealth fund GIC, Voto, Itaúsa and Suzano’s Feffer family. Cosan, BTG Pactual and the potential buyers were not quoted in the report.

From Minority Sale to Control Talks

The reported talks mark a possible escalation from earlier efforts to sell a minority stake in Rumo. A May report republished by ACIA Araçatuba, citing Pipeline Valor, said Cosan had received at least eight non-binding proposals for a minority holding in the rail company. That report said the process was part of Cosan’s strategy to reduce leverage at the holding company.

The earlier report said Cosan held a direct 20.33% stake in Rumo, then valued at R$27.58 billion on the stock exchange. It did not specify how much of that stake was for sale or what price Cosan expected to receive.

Rumo is a strategic asset in Brazilian logistics. Its railway network links the grain-producing Center-West region to ports in the South, making it central to the movement of soybeans, corn and other agricultural commodities. That role helps explain interest from companies exposed to fuel distribution, agribusiness, industrial logistics and long-term infrastructure investment.

A Broader Cash Strategy

Cosan had already used Rumo shares to improve liquidity. In December 2025, the company sold shares equivalent to about 4.98% of Rumo’s capital while entering into total return swap derivatives that replicated the same economic exposure, according to Reuters reporting published by InfoMoney and a market notice cited by ADVFN.

Cosan said at the time that the transaction was part of its liquidity and cash-management strategy and did not reduce its political or economic rights in relation to Rumo. The notice was filed with Brazil’s Securities and Exchange Commission (CVM), the country’s capital markets regulator.

A total return swap allows an investor to keep exposure to the economic performance of an asset, such as share-price changes and dividends, without holding the shares directly. For a company under balance-sheet pressure, that kind of structure can raise cash while preserving exposure to an asset’s upside.

ADVFN reported that Cosan shares closed down 1.89% at R$5.94 on December 15 after that transaction, with more than 28 million shares traded. The report framed the market reaction as cautious, balancing the cash benefit against concern over a partial divestment.

Why Rumo Matters

The potential sale comes as Cosan has been selling or studying asset sales to reduce debt. The ACIA report said the group had also sold a minority stake in the Compass initial public offering and was studying a sale of land assets at Radar.

Rumo itself has continued to post operating growth. The ACIA report said the rail company recorded adjusted net profit of R$266 million in the first quarter, up 41% from the same period in 2025, helped by stronger demand for grain transport.

The available reports differ on the scale of Cosan’s plans. Pipeline Valor, as cited by ACIA, described a minority-stake sale in May. O Globo’s latest report says Cosan has opened talks to sell control of Rumo. The gap between those accounts has not been publicly explained in the provided sources.

If confirmed, a control sale would be one of the most significant infrastructure transactions in Brazil’s private rail sector, with implications for agribusiness logistics, commodity export routes and Cosan’s future as a diversified holding company.