Synthetic most likely to be used for awhile yetPanasonic is still supplying Tesla batteries and there has been no indication that they have changed.So that leaves me to the conclusion that perhaps that Tesla aka Panasonic are still a very pollutive industry they have not changed i believe show me some facts.The only thing that makes me see they may want to change and it may not actually take affect in the batteries for 3 years or so is that at the end of 2017 they have to make new agreements in the graphite space.With the gigafactory a little ahead of time Tesla is going to have to make 3-5 year decisions very fast.The reason i posted that gph should produce unending limits of flake and coated graphite is that the new cell will most likely be useing as much as 35% coated graphite up from 25% coated instead of synthetic.Musk has been given billions of dollars in tax incentives in the US so if he is planing on takeing his buisness else wheres in the next couple of mnths he better take the gigafactory with him.I still think maybe a lot of the other mines are barking in the wind for buisness from Tesla but the i can see them suppling europe for a long time especially from eastern Canada easy transportation route for them.