The upgrades are a part of a significant investment programme that will eventually see SilkAir merged into SIA.
Meanwhile, the national carrier of the Sultanate of Oman is expected to receive a total of 9 more 737 MAX 8s next year.
Oman air unveils the first of several new routes to be launched in 2019
The joint venture will provide simulator and classroom training with an initial focus on Boeing aircraft types
Announces that Adelaide will be first to see brand new Boeing 737 MAX 8 aircraft
New aircraft to initially operate from carrier's Houston and Los Angeles hubs
Korean Air has commenced supplying Advanced Technology Winglets for Boeing 737 MAX, advancing the development of the wing core parts for the aircraft.
Boeing says its 737 MAX team remains on track to roll out the first completed 737 MAX by the end of the year and fly it in early 2016.