Ronez’s operations supply the Channel Islands with aggregates, ready-mixed concrete, asphalt and precast concrete products and services. Operating out of multiple sites across Jersey and Guernsey with satellite offerings on other islands, Ronez offers a full range of high-quality construction products and services. The creation of a shipping division, SigmaGsy, by SigmaRoc upon acquisition of Ronez has helped with transporting dry-bulk materials to and from our own sites as well as third-party sites in the UK and Europe, resulting in higher profits and operational efficiency.