None of four foreign manufacturers has yet dropped out of talks with Chinese fighter builder Avic Aviation Techniques (AAT) aimed at joint development and manufacturing of business jets.

It is unclear, however, whether all of the bidders are keen to participate in the whole program proposed by AAT — transfer of a current business jet production line to the company’s Chengdu works and joint development of a large new aircraft, with considerable technological transfer.

One of the bidders, Israel Aerospace Industries, is focusing more on the proposed new aircraft, says an industry executive with knowledge of the talks. IAI makes the Gulfstream G280, which is of about the right size for AAT, but Gulfstream says that that program will not leave Tel Aviv.

The other bidders are Hawker Beechcraft, Cessna and Bombardier, say industry executives. Among those three companies, only Hawker Beechcraft, struggling with the weak global market, appears to have strong reasons to work closely with AAT and teach it to become a competitor.

AAT, part of the Avic group and formerly known as Avic Defense, builds fighters, trainers, drones and missiles. The company hopes to emulate Dassault Aviation by sharing exploiting fighter technology, skills and equipment in making high-performance business aircraft. Its operations include China’s traditional combat aircraft plants at Chengdu and Shenyang.

Dassault and Gulfstream declined to pursue AAT’s proposal.