FEBRUARY 12, 2007 - COVANTA ANNOUNCES PARTNERSHIP WITH CHONGQING IRON & STEEL, ENTRY INTO CHINESE ENERGY-from-WASTE MARKET

Joint venture positions Covanta to participate in
China's rapidly growing Energy-from-Waste market
                                  

FAIRFIELD, NJ, February 12, 2007 - Covanta Holding Corporation (NYSE: CVA), announced it has signed an agreement to purchase a 40 percent stake in Chongqing Sanfeng Environmental Industry Co., Ltd. (Sanfeng), a subsidiary of Chongqing Iron & Steel (Group) Limited. Sanfeng designed, built, operates and has minority interests in two modern 1,200 ton per day (tpd) energy-from-waste facilities, both of which utilize Martin Gmbh technology. The facilities are located in Chongqing Municipality and Fuzhou Municipality, Fujian Province. In addition Sanfeng is pursuing several Energy from Waste development opportunities in China.

"We are very excited about our new partnership with Chongqing Iron & Steel and about Sanfeng as a solid platform for growth in this dynamic market.", said Anthony Orlando, President and Chief Executive Officer of Covanta. "With Chongqing Iron & Steel, we have a partner with a rich and proud history of success in the Chinese marketplace, and one which shares our enthusiasm for expanding the role of energy-from-waste by providing environmentally responsible waste disposal and clean renewable energy. In addition to its license agreement to utilize Martin's Sity 2000 technology in China, Sanfeng has demonstrated expertise in designing and building energy- from-waste facilities and a commitment to grow the business by providing world-class service for municipal clients. I am confident we and Chongqing Iron & Steel will be excellent partners."

"We are very pleased to have the largest energy-from-waste company in the world as our partner", said Mr. Dong Ling, Chairman of Chongqing Iron & Steel (Group) Co., Ltd. "Our expertise in design, construction and equipment manufacturing combined with Covanta's long and successful track record of developing and operating energy-from-waste facilities makes for a very strong partnership that is well positioned to compete in China's energy from waste market."

China generates an estimated 280 million tons of municipal solid waste annually, most of which is currently being disposed of via landfilling. The Chinese Ministry of Construction has outlined a National Waste Disposal Plan to increase energy-from-waste from 2005 levels of less than 2 percent of waste disposal to 30 percent of total municipal waste disposal by 2030.

Covanta's purchase of its 40% stake in Sanfeng is subject to Chinese regulatory approvals and other conditions precedent, and is expected to close during the second quarter of 2007. Upon closing, Sanfeng will be converted into a Sino-foreign joint venture with its name changed to Chongqing Sanfeng Covanta Environmental Industry Co., Ltd. While financial terms of the transaction were not disclosed, it is not expected to have a material impact on Covanta's financial results in the near term.

About Covanta Holding Corporation:
Covanta Holding Corporation is a New York Stock Exchange listed company engaging in waste disposal, energy services and specialty insurance through its subsidiaries.  Covanta's subsidiary, Covanta Energy Corporation, is an internationally recognized owner and operator of energy-from waste and power generation projects. Covanta Energy's energy-from waste facilities convert municipal solid waste into renewable energy for numerous communities, predominantly in the United States.

CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS
Certain statements in this press release may constitute "forward-looking" statements as defined in Section 27A of the Securities Act of 1933 (the "Securities Act"), Section 21E of the Securities Exchange Act of 1934 (the "Exchange Act"), the Private Securities Litigation Reform Act of 1995 (the "PSLRA") or in releases made by the Securities and Exchange Commission, all as may be amended from time to time.  Such forward looking statements involve known and unknown risks, uncertainties and other important factors that could cause the actual results, performance or achievements of Covanta and its subsidiaries, or industry results, to differ materially from any future results, performance or achievements expressed or implied by such forward-looking statements.  Statements that are not historical fact are forward-looking statements.  Forward looking statements can be identified by, among other things, the use of forward-looking language, such as the words "plan", "believe", "expect", "anticipate", "intend", "estimate", "project", "may", "will", "would", "could", "should", "seeks", or "scheduled to", "proposed", or other similar words, or the negative of these terms or other variations of these terms or comparable language, or by discussion of strategy or intentions.  These cautionary statements are being made pursuant to the Securities Act, the Exchange Act and the PSLRA with the intention of obtaining the benefits of the "safe harbor" provisions of such laws.  Covanta cautions investors that any forward-looking statements made by Covanta are not guarantees or indicative of future performance.  Important assumptions and other important factors that could cause actual results to differ materially from those forward-looking statements with respect to Covanta, include, but are not limited to, those factors, risks and uncertainties that are described in Item 1A of Covanta's Annual Report on Form 10-K for the year ended December 31, 2005, its Quarterly Report on Form 10-Q for the period ended September 30, 2006, and in other securities filings by Covanta.                                                                                                   

Although Covanta believes that its plans, intentions and expectations reflected in or suggested by such forward-looking statements are reasonable, actual results could differ materially from a projection or assumption in any forward-looking statements.  Covanta's future financial condition and results of operations, as well as any forward-looking statements, are subject to change and inherent risks and uncertainties. The forward-looking statements contained in this press release are made only as of the date hereof and Covanta does not have or undertake any obligation to update or revise any forward-looking statements whether as a result of new information, subsequent events or otherwise, unless otherwise required by law.

For more information, please contact:
Gavin Bell
Vice President, Investor Relations
973-882-7107