london oct 20 reuters  swiss energy trader gunvor group has partnered with dow inc down in europe to supply the chemical firm with feedstock from plastic waste to in turn make recyclable plastics the companies said in a statement on wednesday gunvor will make crackerready feedstock at its refinery in rotterdam in the netherlands and will start supplying dow this year the agreement builds on dows longstanding relationship with gunvor and leverages the economies of scale needed to bring a circular economy for plastics another step closer diego donoso president of dows packaging and specialty plastics business said in the statement