BlueNext, a France-based environmental trading exchange, jointly owned by NYSE Euronext and Caisse des Depots, has appointed Francois-Xavier Saint-Macary as its new CEO, effective 1 September 2010.

Saint-Macary will succeed Serge Harry who has steered BlueNext since its was established.

Saint-Macary comes from Societe Generale where for 16 years he was global head of commodities trading within the Corporate and Investment Banking Division.

NYSE Euronext CEO Duncan Niederauer said that Francois-Xavier brings a wealth of experience in finance and environmental markets to BlueNext, which is now well positioned to lead and define the next level in carbon trading.

“Serge Harry has established a successful foundation and road map for BlueNext during the very formation of an industry that has faced many significant challenges. My colleagues and I thank Serge for his outstanding leadership and contributions,” Niederauer said.