JKS won't be affected by the decision, they only sold 16mw here last Q but all with outsourced Cells using their own Wafer.
EU's decision in Febuary will have 3 month retroactive effects, that's why the Chinese have been busy dumping, I think they've finished that just before the Nation day holiday. The longer than expected shutdown during this holiday may also help with inventory build-up, it's reasonable they rally a little now along with the genral market.