Sustainability reporting: what buyers now ask factories to prove

The direction of travel in apparel sourcing is clear: buyers are being asked to substantiate environmental claims, and that request lands on the factory as a data request. Statements of intent no longer close the audit.

Energy and emissions. Monthly electricity, gas, steam and diesel consumption, tied to production output, is the baseline. Without a per-unit denominator the numbers cannot be compared year on year, and improvement cannot be demonstrated.

Water and effluent. For wet processing, intake volume, discharge volume and treatment parameters — recorded consistently, not reconstructed before an audit — are the difference between a credible file and an uncomfortable one.

Chemical inventory. A live list of chemical products with supplier declarations and restricted-substance status is now a routine expectation, and it is far cheaper to maintain continuously than to rebuild.

Material traceability. Buyers increasingly ask where the fibre came from, not only where it was sewn. Keeping supplier documents attached to the order file at the time of purchase avoids a retrospective hunt.

Waste and recovery. Cutting waste, rejected garments and packaging streams, with destinations recorded, close the loop on the reporting picture.

None of this requires new software to begin. It requires one owner, a fixed monthly cadence, and the discipline to record numbers when they occur rather than when they are demanded. Factories that already do this treat the questionnaire as a report; the rest treat it as a project.