@Trash8mofo is correct on that over-view of the China situation. They offered me 1 month on 1 month off, but the reality is, some operational flexibility on the rostering should be anticipated* (*read that as expected). At my first contract renewal, the 1 month on 1 month off was so far removed from reality I suggested they just pay me at a daily rate for every day I'm in China, whether I go to work or not.