** Shares in Eramet ERMT.PA close to 8%, to the bottom of France's SBF 120 .SBF120 index, after the French mining group dismissed its CEO Paulo Castellari, citing disagreements on "operating methods"
** Chairwoman Christel Bories, who handed the CEO role to Castellari last year, will resume it on an interim basis until a new CEO is appointed
** "This decision comes as a surprise to us, as Paulo Castellari seemed to be gradually finding his feet and had launched an ambitious plan to address operational performance issues (ReSolution)," broker Portzamparc says
** Eramet says the decision has nothing to do with its results and that its strategy "remains unchanged"
** Shares are on track for their worst day since October 2024
(Reporting by Olivier Cherfan)
((olivier.cherfan@thomsonreuters.com))