Japan Airlines Co. said Thursday it will buy 32 planes from Mitsubishi Aircraft Corp. to make its fleet more fuel-efficient.

JAL plans to begin using the regional jet in 2021 on domestic routes, the carrier and Mitsubishi Aircraft said Thursday in a statement.

The airline, which sold shares to the public in 2012 after emerging from bankruptcy, also agreed to buy 27 planes from Brazil-based Embraer SA.