… Group. Jaime led M&A in the Americas for Rentech, Inc., a Blackstone-backed natural resource company. Jaime served in President Obama’s first term as an advisor for finance and … Group. Jaime led M&A in the Americas for Rentech, Inc., a Blackstone-backed natural resource company. Jaime served in President Obama’s first term as an advisor for finance and … Group. Jaime led M&A in the Americas for Rentech, Inc., a Blackstone-backed natural resource company. Jaime served in President Obama’s first term as an advisor for finance and …