Spacecraft --- Space Station --- Resupply

Progress supply ships will be used to ferry new supplies (food, water, medicines, oxygen, nitrogen, fuel, equipment, clothing, personal items) to the ISS. Solid waste from the ISS will also be removed by the progress supply ships.
Also, the space shuttle can bring new supplies to the ISS.

Structure of the ISS Propulsion Communication Navigation Power Computer Resupply Escape Research in the ISS