Hi Alan,
It would seem that your follow up to Rod’s post 2053 re 43C7B2 suggesting it’s an EFA, is correct as dtvmovements say the same.
43C7B1, WTN29 has just been out and about in the same area and ‘dtvmovements’ confirmed that as Typhoon ZK600 on the 23rd
Regards
Syd