MARSULEX ANNOUNCES AGREEMENT TO SELL STABLEX DIVISION TO US ECOLOGY, INC. FOR
C$80 MILLION

TORONTO, Sept. 13 /CNW/ - Marsulex Inc. (TSX: MLX) announced today that it has signed a definitive agreement to sell its Stablex division ("Stablex"), a leading North American provider of hazardous waste services, to US Ecology, Inc. for $80 million Canadian. The transaction is expected to close on October 31, 2010 and is subject to normal and customary closing conditions, including a purchase price adjustment based on working capital.

Mr. Laurie Tugman, President and Chief Executive Officer of Marsulex, said, "The agreement is a result of the previously announced broad based strategic review pursuant to which Marsulex engaged TD Securities Inc., CIBC World Markets Inc. and Houlihan Lokey as advisors. Stablex continues to conduct its business as usual and remains fully focused on providing environmental compliance solutions for customers." Mr. Tugman noted that the overall strategic review is ongoing and that no timetable has been set for its completion and that there can be no assurances that the process will result in any further transactions.

Net proceeds of the sale will be used to repay outstanding indebtedness under the Company's Senior Secured Credit Facility.

Marsulex, which is based in Toronto, Ontario, is a leading provider of industrial services, including environmental compliance solutions for air quality control, processing or handling of industrial by-products or waste streams, and is a producer and marketer of sulphur-based industrial chemicals. The Company's services and products are provided to a broad base of industrial customers in a wide range of industries. Website: www.marsulex.com.

This news release contains forward-looking statements. These statements are based on current views and expectations that are subject to risks, uncertainties and assumptions that are difficult to predict, including but not limited to:

    
    - risks, uncertainties relating to the Company's growth and profitability
    - closing of the sale of Stablex
    - the outcome of the strategic review.
    

Actual results may differ materially from results suggested in any forward-looking statements whether as a result of new information, future developments or otherwise. Other than as required under securities laws, we do not undertake to update any forward-looking information at any particular time. The reader should not place undue importance on forward looking information and should not rely upon this information as of any other date.

Additional information identifying risks, uncertainties and assumptions is contained in the Company's filings with the securities regulatory authorities, which are available at www.sedar.com. All forward-looking information contained in this news release is expressly qualified in its entirety by this cautionary statement.

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For further information: Laurie Tugman, President and CEO, Tel: [phone]; or William Martin, Chief Financial Officer, Tel: [phone]