Sustainability Policy
Sourcing that respects the environment it draws from
BASE only partners with producers who meet recognised environmental standards for extraction, processing and rehabilitation. Because we don't operate mines or quarries ourselves, this is where our environmental influence actually sits — in who we choose to work with, and how consistently we hold them to that standard once the partnership begins. A supplier that meets the bar at onboarding but lets standards slip afterward is treated as a compliance issue, not a minor inconsistency to overlook.
Our Commitments
Supplier screening
Environmental permits and compliance records are reviewed before a partnership begins, and re-checked whenever regulations or ownership at a site change. A lapsed permit is treated the same as one that was never issued — the supplier is paused until it's resolved.
Resource efficiency
We favour producers who minimise waste and energy use in extraction and processing. Where two suppliers meet the same specification, this is part of how we choose between them. It's a factor we can act on precisely because it doesn't cost buyers anything extra to prefer the more efficient producer.
Land rehabilitation
Quarry and mine partners are expected to maintain active rehabilitation programmes, reviewed as part of our regular supplier assessment rather than taken on trust. A partner who lets a rehabilitation programme lapse loses standing in our network even if their output quality hasn't changed.
Ongoing review
Supplier environmental performance is reassessed on a regular cycle, not only at onboarding — standards that slip after year one are treated the same as standards that were never met. We'd rather catch a declining supplier ourselves than have a buyer point it out to us.
See also our broader Sustainability commitments — the same standard applied at network level, not just supplier by supplier. Together, the two are meant to be read as one standard, not two separate promises.