Singapore Airlines updated their award earning chart on October 13, 2025. Not much changed, but it looks like you can now earn 100% mileage for JetBlue flights booked in the N fare code.

https://www.singaporeair.com/content/dam/sia/web-assets/pdfs/ppsclub-krisflyer/charts/KFOALLevels.pdf

Previous Award Chart - https://web.archive.org/web/20250905142428/https://www.singaporeair.com/content/dam/sia/web-assets/pdfs/ppsclub-krisflyer/charts/KFOALLevels.pdf