LONDON (Reuters) - China's Bohai Leasing Co Ltd (>> Bohai Leasing Co Ltd) is in exclusive talks to buy Irish aircraft leasing firm Avolon Holdings Ltd (>> Avolon Holdings Ltd) for $2.64 billion, after raising its offer to put it ahead of a rival bidder.

The deal, which gives Avolon a total enterprise value of $7.6 billion, would give Bohai 100 percent ownership of the world's 11th-largest aircraft lessor.

The $32 per share offer was $1 per share higher than Bohai's earlier approach in July and represents a premium of 11.3 percent to Avolon's Friday close of $28.76. It is also $2 per share higher than an offer from a rival unidentified suitor.

Shares in Avolon traded up 4.8 percent at $30.13 by 0936 ET.

Bohai and Avolon now have until Sept. 7 to negotiate a deal.

Chinese lessors, mostly backed by state-owned banks, have been expanding in recent years as large carriers such as Hainan Airlines Co Ltd (>> Hainan Airlines Co., Ltd.), Air China Ltd <0753.HK>, China Eastern Airlines Corp Ltd <0670.HK> and China Southern Airlines Co Ltd <1055.HK> open more routes at home and overseas.

Bohai, a unit of aviation and shipping conglomerate HNA Group, bid for all of Avolon after learning there was another bidder, having originally offered to buy 20 percent of the company for $429 million at $26 per share.

Avolon, which was founded by leasing entrepreneurs Domhnal Slattery and John Higgins in 2010, was floated last December. It owned or managed 152 aircraft at the end of June and had more than 100 more on order.

Ahead of Avolon's flotation, China Investment Corp (CIC) and AVIC Capital Co Ltd (>> AVIC Capital Holdings Co Ltd) had been in talks to acquire the company.

The offer includes a break fee of up to $250 million in the event that the deal does not go ahead under certain circumstances, with an initial $75 million deposited by Bohai as a "good faith" measure.

(Reporting by Sarah Young; Additional reporting by Sagarika Jaisinghani in Bengaluru; Editing by Susan Thomas and David Holmes)