ACA INDUSTRY APS
ALBA GROUP
ATTERO RECYCLING PVT. LTD.
AURUBIS AG
Boliden Group
Capital Environment Holdings Limited
Cimelia Resource Recovery Pte. Ltd.
ERI
Quantum Lifecycle Partners
SEMBCORP INDUSTRIES LTD.
Sims Lifecycle Services
TES
Tetronics Environmental Waste Treatment
UMICORE
Veolia
WASTE MANAGEMENT Inc.