In June 2012, UTC admitted the "illegal export to China of U.S.-origin military software used in the development of China’s first modern military attack helicopter, the Z-10."
http://www.justice.gov/opa/pr/2012/June/12-nsd-824.html also see http://www.publicintegrity.org/2012/07/03/9268/company-earned-millions-defense-contracts-while-making-illegal-sales-china