Based on the DOE Study and data from the Canadian Used Oil Management Association, it is believed that the size of the United States and Canadian used oil market in fiscal year 2007 was approximately 1.4 billion gallons. This used oil is collected from garages, vehicle dealerships, quick lube change installations and other commercial and industrial businesses. Market participants include used oil collectors, transporters/brokers, processors, re-refiners and used oil burners.

Historically, most of the used oil collectors have been small, independent operators. Collected used oil is often recycled and reprocessed and sold to various users as an alternative to their base load natural gas or other liquid fuel supplies to lower their operating costs. As an alternative to using used oil solely for its heating value, used oil can be re-refined into a variety of oil products.

Companies in the industrial and hazardous waste markets provide for the safe management and disposal of solid and liquid waste for commercial and industrial customers. Market participants must be able to comply with extensive federal, state, provincial and local regulations. These markets are highly fragmented with many local and regional competitors. Based on the Farkas Report, it is believed the North American market for hazardous and industrial waste services was approximately $3.5 billion in fiscal year 2007.

The East Chicago facility is the largest used oil re-refinery in North America with an annual capacity of more than 100 million gallons of used oil. The Breslau facility is the largest used oil re-refinery in Canada with an annual capacity of more than 40 million gallons of used oil.

Parts cleaning services consist of the placement, maintenance and servicing of parts washers and the associated cleaning fluids at a wide range of automotive, industrial and commercial customer locations.

The Company offers a broad line of parts washer equipment. The Company also sells parts washer equipment and provides service to customers who own their own parts washers. For those customers who purchase parts washers and enter into a service agreement, the Company generally provides a limited warranty for the lesser of the term of the service agreement or two years that covers the replacement of defective parts.

The Company provides the aqueous solution as part of its aqueous parts cleaning services to the customers for their cleaning needs.

The Company has become a leading provider of containerized waste services, vacuum services, total project management and other environmental services.

Containerized waste services include the characterization, collection, transportation and recycling or third-party disposal of a wide variety of hazardous and non-hazardous wastes.

The Company is one of the largest providers of vacuum services in North America. The Company’s vacuum services offering is supported by its fleet of approximately 240 vacuum trucks, which are specially designed to remove solids, residual oily water and sludge and other fluids from the customers\' oil/water separators, sumps and collection tanks. The Company also collects waste fluids found at small and large industrial locations, including metal fabricators, auto maintenance providers and general manufacturers.

The Company ships waste directly to processing or disposal sites for certain of its customers that generate large quantities of waste.

The Company provides on-site and off-site recycling of photochemical solutions, as well as film, aluminum plate and silver recovery services, to health care, printing, photo processing and other businesses and industries, which utilize image capture, processing, storage, output or delivery of images.

Operating expenses for the first quarter of 2008 increased $39.9 million, or 15.4%, to $298.5 million from $258.6 million for the first quarter of 2007.

Depreciation and amortization expense for the first quarter of 2008 was $20.5 million compared to $21.2 million for the first quarter of 2007.

Interest expense for the first quarter of 2008 decreased $0.8 million to $7.0 million from $7.8 million for the first quarter of 2007.

Income tax benefit for first quarter of 2008 was $2.5 million compared to income tax expense in the first quarter of 2007 of $0.6 million.