Mmmmm ...
Sky Shuttle .... now what I am about to say is a bit second hand from a collegue who used to work there ... so I stand to be corrected as necessary.
They seem to have quite a high turnover of pilots ... seems that some people cannot take the (chinese) management style for very long.
They have now apparently learnt NOT to give away 139 type ratings ... and I understand through my 'old boy network' that the going rate from them is a US $100k (?) surity of some kind ... though I do not know how long it takes to work that off to zero.
Good luck to any that take the 'shilling'