Transportation accounts for a minor percentage of CO2 emissions from the cement sector. Raw materials are transported from quarries to cement plants, and the final cement product is then transported to customers.
Cement plants are in general located short distances from both their quarries and customers. In short, cement is often a locally used product, in order to minimize expensive bulk transport of the raw materials and cement. The relative expense of land transport usually limits cement sales to within 300km of a plant site. At present very little cement is traded and transported internationally.