Cosan S.A.'s Share Price Falls by Over 10% Amidst Political Uncertainty in Brazil

Cosan S.A. (NYSE:CSAN) share price fell by 10.45% between December 3 and December 10, 2025, amidst reports that former Brazilian President Jair Bolsonaro endorsed his son, Senator Flavio Bolsonaro, as the far-right candidate for the presidential election next October. The news created a political risk environment, negatively impacting the country's benchmark stock index and the Brazilian Real against the US dollar.