Davis Malm Client Clean Harbors Announces the Closing of its Public Offering

December 13, 2005 - Boston, MA
For more information contact: Joanne Thorud
(617) 589-3894; jthorud@davismalm.com

Davis, Malm & D'Agostine, P.C. is proud to have represented long-standing client Clean Harbors, Inc., (NASDAQ: CLHB) in its public offering of 2.3 million shares of common stock. Davis Malm attorneys C. Michael Malm, John D. Chambliss, Amy L. Fracassini and others worked on the offering, raising approximately $60.3 million net proceeds for the company. Clean Harbors is North America's leading provider of environmental and hazardous waste management services, and is headquartered in Braintree, Massachusetts.

About Davis, Malm & D'Agostine, P.C.
Founded in 1979, Davis Malm is a general practice law firm that concentrates on finding solutions for businesses and individuals in corporate, real estate, financing, insolvency and restructuring, employment, environmental regulation, litigation, and trusts and estate planning matters. Clear thinking, tough-mindedness, and a firm commitment to its clients' interests are the touchstones of Davis Malm's practice. The firm is known for its collaborative service, conservative staffing, and alertness to individual client needs.