I suspect that everyone except the Japanese were in various stages of planning.GF, obviously within the constraints of what you can comment on, where are Singapore and HDW at with the development of the 218SG ? As I understand it contracts were signed last year for 2 Subs with delivery from 2020, so would be assuming they would be well into planning and development of full designs and ready to start construction soon ?
It's been discussed at numerous levels for the last 10 years - and visibly so within the SIA
(btw the Brits were knocked out as well - both companies. So that came as a surprise to some)