Shows the currently assigned contract. Product on the left side is the one you are exporting (selling) and the one on the right side is being imported. The displayed traded volumes are calculated based on all the cargo depot's modules that are assigned with corresponding products. If there isn't any corresponding cargo depot module for both the products then the estimates will show a question mark.
The cargo ship departs automatically when there is enough cargo to collect on the world map. Each journey of the ship has a fixed cost of fuel that is based on the size of the ship. Larger ships are more efficient in fuel consumption (they get upgraded automatically with cargo depot upgrade). The ship doesn't need to be assigned to individual mines / oil rigs, it collects cargo automatically. It can transport multiple types of products at the same time and will make sure all of them are supplied (it will depart anytime any of its products need to be transported).
Cargo depot module for transferring units of products (such as construction parts). It can be built in any empty slot of a cargo depot. Unloads cargo {0} faster comparing to the basic module.
Cargo depot module for transferring loose materials (such as coal). It can be built in any empty slot of a cargo depot. Unloads cargo {0} faster comparing to the basic module.
Cargo depot module for transferring fluid materials (such as oil). It can be built in any empty slot of a cargo depot. Unloads cargo {0} faster comparing to the basic module.
Cargo depot can be used either to import products from your mines and oil rigs or to perform a contract. Cargo depot can be assigned only to a single contract and once it is assigned, its ship will automatically perform the assigned contract given there are correct modules with correct products assigned. When cargo depot is assigned a contract it cannot perform any other duties such as importing products from mines and oil rigs.
Cargo depot can be used either to import products from your mines and oil rigs or to perform a contract. Cargo depot can be assigned only to a single contract and once it is assigned, its ship will automatically perform the assigned contract given there are correct modules with correct products assigned. When cargo depot is assigned a contract it cannot perform any other duties such as importing products from mines and oil rigs.