I have been using my MyKad as TnG for years. Went to JPN last month to apply fo rnew MyKad. TnG not transferable. So, they'll cut up your old MyKad and leave you with the chip for TnG function. You'd have to go to TnG center in Menara Faber in Taman Desa to transfer credits from old chip to the new MyKad all over again...