Exhibit (2) (iii) SECOND AMENDMENT TO ACQUISITION AGREEMENT WHEREAS, Safety- Kleen Services, Inc. (the "Seller") and Clean Harbors, Inc. (the "Purchaser"), are parties to an Acquisition Agreement dated as of February 22, 2002, as amended by the First...Acquisition Agreement • September 20th, 2002 • Safety Kleen Corp/ • Hazardous waste management
Exhibit (2) (iv) THIRD AMENDMENT TO ACQUISITION AGREEMENT WHEREAS, Safety-Kleen Services, Inc. (the "Seller") and Clean Harbors, Inc. (the "Purchaser"), are parties to an Acquisition Agreement dated as of February 22, 2002, as amended by the First...Acquisition Agreement • September 20th, 2002 • Safety Kleen Corp/ • Hazardous waste management
