While Japan is a big player in the Solar Energy Manufacturing Market,there are other significant players like USA,China,Germany which have not protested against this discrimination.So why is Japan so miffed as to approach the WTO over this issue.One reason that i can readily think of is the Huge Contract given to Samsung by the Ontario government.The agreement with Samsung gives it the subsidies to set up a huge solar and wind energy capacity in the province.The government will support the company through preferential grid access,subsidies and land.This has given a huge boost to the Green Ambitions of Samsung which wants to become a big player in the Renewable Energy Area.