Honeywell and DuPont Announce Joint Venture to Manufacture New Automotive Refrigerant

Low-Global-Warming-Potential Alternative Meets New European Environmental Regulations

MORRIS TOWNSHIP, N.J., and WILMINGTON, Del., May 20, 2010 – Honeywell (NYSE: HON) and DuPont (NYSE: DD) today announced a manufacturing joint venture to produce a new refrigerant for use in automotive air conditioning systems. The new refrigerant has 99.7 percent lower global warming potential (GWP) than the current refrigerant.

Under the agreement, DuPont and Honeywell will share financial and technological resources with the intent to jointly design, construct and operate a world-scale manufacturing facility for the new refrigerant, known as HFO-1234yf. The product meets European Union regulatory requirements for lower GWP refrigerants for automobile air conditioning systems. DuPont and Honeywell developed the product jointly but will market and sell it separately.

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