Fuji Heavy Industries (FHI) says it is in negotiations with Boeing regarding its participation on the 777X programme, and expects to secure the same work share it has on the present 777.
The manufacturer is also looking at building a new factory to cater to work specific to the 777X, but all would depend on whether a deal is inked with Boeing, a spokeswoman tells Flightglobal.
She would not give a timeframe on when it expects to secure a contract from Boeing.
FHI manufactures the centre wingbox for the 777 and 787, and also produces parts for the 767 and 737.
Japan accounts for about 20% of the workshare on the 777.
Mitsubishi Heavy Industries is also involved in the programme, manufacturing the aft fuselage panel, tail fuselage and entry doors of the aircraft. The firm tells Flightglobal it is also "looking to participate in the 777X".
Kawasaki Heavy Industries meanwhile produces the forward and mid fuselage panels, main landing gear wells and cargo compartment doors for the 777.