UK production and terminals tend to cluster near major transport corridors, ports, and asphalt supply chains rather than evenly across the country. You typically see concentration around regions with high road maintenance demand and established bitumen logistics. From a sourcing perspective, the practical distribution question is delivery radius, tanker availability, and regional compliance with local authority specs. When mapping suppliers, focus on whether they offer bulk storage, rapid delivery windows, and field support for tack coat and surface dressing rather than just registered office location.