lumber- CANADian
marble
fish
pigs
oil- CANADian
lead- Erchie
gold- Titanium Crusher
aluminum- Titanium Crusher
iron- Andymac
uranium- Erchie
wheat
water- Andymac
it would get you the following bonus resources:
Construction
Microchips
Beer
Scholars
This is an awesome trade circle plan that I came up with a few months ago, it gives you:
Economy: +$13.50
Citizens: +20.7%
Happiness: +7
Infra Cost: -29%
Tech cost: -12.6%
Land Cost: -5%
Environment Star Rating: +1
Soldier Efficiency: +51.8%
Soldier Cost: -$6
Cruise Missile Cost: -20%
Nuke Cost: -20%
Tank Cost: -8%
Navy Vessel Cost: -14.5%
Air Craft Cost: -11.7%
Air Craft Limit: +10
Infra Upkeep: -19.7%
Soldier Upkeep: -$1
Tank Upkeep: -17%
Nuke Upkeep: -60%
Navy Upkeep: -38.4%
Air Craft Upkeep: -25%