Skymark last month filed for protection from creditors with total liabilities of 71.09 billion yen ($597 million). It agreed on a 9 billion-yen sponsorship deal to keep the business going with Tokyo-based fund Integral and is now seeking co-sponsors to help it turn the business around.
The deadline to submit expressions of interest was Monday for airlines and last Thursday for non-aviation companies.
People with knowledge of the matter told Reuters last week that ANA and others including brokerage Daiwa Securities Group , Shinsei Bank, and financial services provider Orix Corp had expressed interest in taking part.
Interested parties will have until May 29 to work out a rescue plan before submitting it to the Tokyo District Court and seeking approval from Skymark's creditors.
Skymark is expected to start implementing the plan from around the end of July.