This will be a BLUE trade circle. Lead may seem bad but really isn't because it:
Lead – Lowers cruise missile and nuclear weapon purchase cost and upkeep cost -20%, lowers aircraft upkeep cost -25%, lowers tank purchase and upkeep costs -8%, lowers soldier upkeep cost -$0.50, reduces environment penalties for owning nuclear weapons by 50%, and lowers all navy vessel upkeep cost -20%.
If you're a bigger nation or a nation that likes to keep your nation strong, this is the trade circle for you.
A harbor is required for you to be in this trade circle.
Aluminum: Drail
Cattle:
Fish:
Water: Supra25900
Pigs:
Spices: Drail
Sugar:
Lumber:
Iron: LeVentNoir
Marble:
Wheat: LeVentNoir
Lead(Wildcard): Supra25900