Mitsubishi Heavy Industries selects Hamilton Sundstrand to provide major systems content on its next-generation regional aircraft

Windsor Locks, USA- North America, Connecticut, Dec 12, 2007

Mitsubishi Heavy Industries Ltd. (MHI) has selected Hamilton Sundstrand to provide several major systems on its proposed Mitsubishi Regional Jet (MRJ). Hamilton Sundstrand is a subsidiary of United Technologies Corp. [NYSE: UTX].

Hamilton Sundstrand's suite of systems for each MRJ includes the electric system (including emergency power), fire detection and suppression system, air management system, Auxiliary Power Unit and flap/slat actuation system.

"Hamilton Sundstrand's onboard systems will provide a great boost for the MRJ in the future regional jet market, and will offer unprecedented value for our customers," said Junichi Miyakawa, MHI's MRJ program manager. "We also expect the synergy between Hamilton Sundstrand's excellent technologies and the already selected Pratt & Whitney's Geared TurbofanTM engine, both belonging to United Technologies Corp., to result in tremendous
achievements for the MRJ."

The MRJ represents the next generation of regional aircraft: a 70-90 seat class aircraft being developed with the very latest technology that will enable operational economy and outstanding cabin comfort.

MHI expects demand for about 5,000 airplanes of the MRJ class in the global regional jet market during the next 20 years.

"Hamilton Sundstrand is very excited by the opportunity to work with MHI as partners on the MRJ," said Hamilton Sundstrand President David Hess. "Our success on the program is further evidence of our position as a leading integrator of aircraft systems."

 With 2006 revenues of $5 billion, Hamilton Sundstrand employs approximately 18,000 people worldwide and is headquartered in Windsor Locks, Conn. Among the world’s largest suppliers of technologically advanced aerospace and industrial products, the company designs, manufactures and services aerospace systems and provides integrated system solutions for commercial, regional, corporate and military aircraft. It also is a major supplier for international space programs.

United Technologies Corp., of Hartford, Conn., provides a broad range of high-technology products and support services to the aerospace and building systems industries.

This release includes "forward looking statements" concerning future business opportunities and other matters that are subject to risks and uncertainties. Important factors that could cause actual results to differ materially from those anticipated or implied in forward looking statements include the health of the global economy and the strength of end market demand in the aerospace industry; and company specific items including the ability to achieve cost reductions at planned levels; challenges in the design, development, production and support of advanced technologies and new products; and delays and disruption in delivery of materials and services from suppliers. For information identifying other important economic, political, regulatory, legal, technological, competitive and other uncertainties, see UTC's SEC filings as submitted from time to time, including but not limited to, the information included in UTC's 10-K and 10-Q Reports under the headings "Business," "Risk Factors," "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Cautionary Note Concerning Factors that May Affect Future Results," as well as the information included in UTC's Current Reports on Form 8-K.