The fuel used was mainly municipal and industrial waste collected locally� Sustainable supply chain Fortum and Uniper expect their business partners to act responsibly and to comply with the requirements set forth in their respective Codes of Conduct and Supplier Codes of Conduct� Both companies assess the performance of its business partners with supplier qualification and supplier audits� Codes of Conduct cover basic requirements The Fortum Code of Conduct and Uniper Code of Conduct are based on similar fundaments, and they establish the basic principles of conduct that everyone must follow.