In March, Jeju Air agreed to acquire 51% of Eastar Jet for 54.5 billion won ($45.52 million), a price lower than a preliminary deal to pay about 69.5 billion won that Jeju Air reported in a regulatory filing in December.

Jeju Air cited unnamed key violations of undisclosed preconditions. Eastar Jet could not be immediately reached.

($1 = 1,197.2000 won)

(Reporting by Joyce Lee; Editing by Sandra Maler)