Davis, Malm & D'Agostine is serving as legal counsel to Clean Harbors. For Vertex, Houlihan Lokey is serving as financial advisor and Ruddy Gregory, PLLC is serving as legal counsel. About Clean Harbors Clean Harbors (NYSE: CLH) is North America's leading provider of environmental and industrial services. The Company serves a diverse customer base, including a majority of Fortune 500 companies. Its customer base spans a number of industries, including chemical, energy and manufacturing, as well as numerous government agencies. These customers rely on Clean Harbors to deliver a broad range of services such as end-to-end hazardous waste management, emergency spill response, industrial cleaning and maintenance, and recycling services.