Empowering sustainability long before it was the thing to do. Spent Caustic Management and Recycling Long before ESG became part of the industrial vocabulary, Merichem has provided end-to-end solutions for waste reduction and environmental reporting. Continually expanding our vast logistics network, we've become the leader in spent caustic management and recycling, trusted by midstream NGLs as well as traditional refining and petrochemical companies for staying ahead of the curve-by 75 years. Scan for more information The experts in sulfur reduction, removal and spent-caustic reuse.