Cosan spent about R$20 billion ($4 billion) to acquire just over 6% of Vale in 2022. Two years later it left with R$9 billion in cash, while net debt still sat at R$17.5 billion.
The mistake was not only numerical but political. Believing it could exert influence over Brazil’s largest miner ran into regulatory muscle and the Lula administration’s firm boundaries. Buying hype, public pressure and attempts to sway management showed any victory would be symbolic at best. Cosan paid heavily for unsupported ambition.
The failed wager has not stopped the company. It is seeking a partner for Raízen, selling ethanol plants, planning to shed assets in Argentina, unwinding its deal with Femsa on Oxxo convenience stores, evaluating options for Compass and Moove — and trying to put Rumo back on track after struggling to adjust rail tariff pricing.
A recent share rally — up 33% in the past 30 days, though still 40% below year-ago levels — offers some relief. Investors may have turned a page, but the book is far from closed. A holding-company discount of about 30% lingers, reminding markets that the parts remain worth more than the whole. Strong assets alone are not enough; value must be delivered, not just promised.
If Cosan can turn non-core disposals and debt reduction into solid growth, it may endure smaller, leaner and less ambitious — yet with a chance to resurge. If not, it will stand as a cautionary tale of an empire that grew too big, too fast.
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