Waste Services to Announce First Quarter Results on April 22

Date: April 8, 2008

Source: Waste Services, Inc.

Waste Services Announces Conference Call for First Quarter Results

Waste Services, Inc. (Nasdaq: WSII) today announced that it will release its 2008 first quarter results after the close of markets on Tuesday, April 22, 2008 and hold a conference call on Wednesday, April 23, 2008 at 8:30 a.m. (ET). A copy of the first quarter press release will be available on our website after its release. Our Chief Executive Officer, David Sutherland-Yoest, accompanied by other senior management, will discuss the company's first quarter results.

If you wish to participate on this call, please phone 866-713-8565 (US and Canada) or 617-597-5324 (International) and enter passcode number 26455361. To hear a web cast of the call over the Internet, access the home page of the Waste Services website at www.wasteservicesinc.com. A replay of the call will be available until May 7, 2008 by phoning 888-286-8010 (US and Canada) or 617-801-6888 (International) and entering passcode number 23519314. The web cast will also be available on the company's website.

Waste Services, Inc., a Delaware corporation, is a multi-regional integrated solid waste services company that provides collection, transfer, disposal and recycling services in the United States and Canada. The company's web site is www.wasteservicesinc.com. Information on the company's web site does not form part of this press release.

For more information, visit: www.wasteservicesinc.com.

Sign up to receive our free Weekly News Bulletin