City of Lahti: www.lahti.fi

Bojanala Platinum District Municipality: www.bojanala.gov.za

The Association of Finnish Local and Regional Authorities: www.localfinland.fi

Harties Metsi a Me - Biological Remediation Program: www.dwa.gov.za/harties

Päijät-Häme Waste Disposal Ltd (in English): www.phj.fi