"Villagers gather Coin from Plantations faster."—In-game description
Refineries is a technology in Age of Empires III that can be researched by European civilizations at the Plantation once the Industrial Age is reached and Homesteading is researched. Once researched, it allows Settlers, Coureurs des Bois, and Settler Wagons to gather coin from Plantations and Rice Paddies 30% faster.
|Plantation technologies in Age of Empires III|
|Europeans||Bookkeeping · Homesteading · Refineries|
|Native Americans*||Earth Ceremony · Earth Gift Ceremony · Excessive Tribute · Tezcatlipoca Worship · Maple Festival · Gun Trade|
|* introduced in The WarChiefs|