In 2004, Kajima expanded and modernised the Bridgestone Tyre Plant. A rolling mill and a three-storey office and social building were added. The expansion was carried out during the plant’s continuing production activity. This required setting up and maintaining a complicated delivery and assembly schedule for the individual works, so that they did not interfere with the production process. The contract also included execution of the vulcanization channel in reinforced concrete, with a depth of 6 m.