Gaiaterra: Elysea's Conflict/Tech Buildings

Tech buildings are structures that originally belong to no particular faction and cannot be constructed by a standard faction, but can be captured for various bonuses. However, simply being garrisonable is not enough to be considered a tech building. They represent militarily useful civilian structures.

Unoccupied tech buildings are always seen with white flag with a gear symbol.

Tech Oil Derrick
In addition to the harvestable ore, rare earth materials and the very rare Tiberium, you will always see Tech Oil Derricks on the battlefield. Capturing these structures is the go-to option to gather additional funds for the war efforts on the field. Not only do the Oil Derricks provide a continuous flow of cash to your base - becoming its first owner gives a bonus amount of instant resources as well. The more Oil Derricks you capture, the more cash you will receive over time.

Tech Deposit Bank
The Tech Deposit Bank functions much like the Tech Oil Derrick, but provides double the cash over time and the initial capture bonus. This makes the Deposit Banks structures sought after by all commanders.