Air Hong Kong
Yes, they're 60% Cathay and 40% DHL.
First Officers:
You'll fly approx. 45 hrs per month on a 8-days on 6-days off, although sometimes you'll have longer flight pattern or days-off.
Basic pay is US$3.333 p/m and $27 per-flight hour up-to 45hrs, and $70 afterwards.
You'll also get duty allowance of around $3.80 per hour (which is basically start at 1 hour before block-off on your 1st day of your pattern and ends 15 30 minutes after block-on on your last day).
You'll end up getting around $5500 per month before tax, and if you choose to be based in Singapore, you'll have to pay about 11% tax.
Cheers,