Nice job on Co2.
One point, you do take income at the end of game, so actions you do in the last round to increase your expertise still pay off in points.
Once a game-ending condition is met, do the following in this order:
1. Add all CEPs from the regions you Control to your respective hands.
2. Sell all CEPs to the market at the current price (do not adjust the market price).
3. Distribute Income to all players.