Succeeding Honda's original HF118 prototype, the HF120 was undergoing testing in July 2008, with certification targeted for late 2009.

[2] The first engines were produced at GE's factory, but in November 2014 production shifted to Burlington, North Carolina.

[4] The engine has a wide-chord swept fan, two-stage low-pressure compressor and counter rotating high-pressure compressor based on a titanium impeller, for a 2,050 lbf (9.1 kN) takeoff thrust.

[7] Besides the HondaJet, HF120 was announced as a retrofit to the Cessna CitationJet CJ1 by Sierra Industries,[8] in partnership with GE Honda.

[9] In addition, Spectrum Aeronautical has announced it is planning to use HF120 for its upcoming S-40 Freedom.