[5] Spring Airlines was required to find one or more local partners due to Japanese legal restrictions that would limit its investment to a minority stake.

The remainder of the airline's capital was provided by Japanese financial institutions, IT enterprises and trading companies, among others.

[8] In November 2022, Japan Airlines announced it had ordered 3 Airbus A321P2F freighters starting in spring 2024.

The aircraft are to be operated by Spring Japan in partnership with the Japanese courier Yamato Transport.

The start of these services was prompted by the Japanese government restricting truck driver's yearly overtime to 960hrs, going into effect in spring 2024.