CHC GO has 2 bases in Thailand. One in Songkhla in the deep south, and one in Utapao near Pattaya.
Types operated are S76 A++, C+, and S61.
They have openings for IFR Captains right now, but you have to go through the process on line at chc.ca, and you may end up in Nigeria first.
Requirements are 1500 hours command and a few other bits and pieces including 300 offshore. No openings for FO's as they hire Thai nationals for these positions.
Si Chang has a C+ operation also based in Songkhla, they hire mainly national pilots who have become disillusioned at CHC after their free training and 7 year bond.
pm me for more, I'll be back there next week