About SigmaRoc

Johnston Quarries is part of SigmaRoc, a quoted lime and minerals group operating across the UK and Northern Europe. SigmaRoc specialises in lime, aggregates, industrial minerals, and value-added construction materials.

SigmaRoc operates through several regional platforms, each focused on operational excellence, sustainability, and local entrepreneurship.

Johnston Quarries sits within the UK & Ireland Region, which includes operations across England, Ireland, Wales and the Channel Islands and focuses on pre-cast concrete, concrete products, lime solutions, ready-mix concrete, asphalt, surfacing, dimension stone and aggregate materials/services.

As part of the SigmaRoc group, Johnston Quarries benefits from shared expertise, investment in innovation.

Learn more at: sigmaroc.com

For financial information, visit SigmaRoc’s Investor Relations page.