Participants at the October 7 to 8 Ethical Corporation’s 8th Annual Sustainable Supply Chain Summit said multinational companies should lead by example when persuading suppliers to use environmental and sustainable goals. Unilever NV Vice President for Procurement Ingredients and Sustainability Dirk Jan de With said the company opened its own palm oil plant to ensure the source is traceable. Mitsubishi Electric Group European Logistics Head Mark Foscoe said the company is working to reduce carbon emissions and waste.