CHANNEL ISLANDS

The Ronez operations supply the Channel Islands with aggregates, ready-mixed concrete, asphalt and precast concrete products. Operating out of St John’s Quarry in Jersey and Les Vardes Quarry and Vale Castle in Guernsey, offering a full range of high-quality construction materials. SigmaGSY is a shipping business using specialised ship to supply dry bulk cementitious material internally and to third parties across UK, Europe and Scandinavia.

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Years of History