S&P Reduces Outlook On Clean Harbors To Negative

Date: May 22, 2003

Source: News Room

Standard & Poor's Ratings Services has revised its outlook on Clean Harbors Inc. (NasdaqNM: CLHB) to negative from positive, following the company's announcement of weaker-than-expected first-quarter earnings, revised earnings guidance, and reduced liquidity position. The company has faced challenges in integrating the Chemical Services Division of Safety-Kleen Corp. in late 2002. S&P also affirmed its current ratings, including the 'BB-' corporate credit rating on the company. The company's total debt outstanding is about $175 million.
More information: www.standardandpoors.com.

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