DUBAI- HSBC and Credit Suisse have been selected to advise on a possible merger between Ahli United Bank (AUB) and Kuwait Finance House (KFH), AUB said on Sunday.

A merger between Bahrain's largest bank and Kuwait's biggest Islamic lender would be the first cross-border tie-up between Gulf banks in recent years at a time when several other banks are consolidating.

HSBC and Credit Suisse were selected to complete studies to assist AUB and KFH in arriving at a fair share exchange ratio, the statement said, without specifying which investment bank was advising which lender.

If agreement on the share exchange ratio is reached, the next step would be the initiation of due diligence and other steps.

KFH said last week it had invited AUB to begin a due diligence process for a potential merger.

The deal provides a non-binding framework to explore the creation of "a major regional banking institution capable of competing more effectively in its existing and new potential markets," AUB Chairman Hamad al-Humaidhi said.

Separately, AUB also said its net profit for the second-quarter was $182.7 million, up 20.3 percent from a year earlier.

(Reporting by Tom Arnold; editing by Jason Neely) ((Tom.Arnold@thomsonreuters.com; +97144536265; Reuters Messaging: tom.arnold.thomsonreuters.com@reuters.net))