I think basically you know, the silicon industry is different from the middle, I think the same the solar industry, like wafer sale and module. We are chemical industry, you know, first of all we need to have a capital investments, capacity as you can see our balance sheet. Secondly is long term investment you know, circle, third, is you know, requirements for environmental, for the safety, you know, all these. I think this industry, if you look at last year, Q2, our selling price, almost - you know, this industry only I think we make a little money, I think all the industrial other players lose money. So basically this industry is not just like you see the glasses, glasses is even less technologies than the polysilicon. Then also you have to remember that in this industry, one of the player, you can know that they have the money, right in Jinko [ph] But they take away five years, they still didn't, you know, keep up the quality, like first year player. So, basically, I think in the future, maybe in this industry, maybe you know, where we survived only four to five player there, and those four or five player will forecast I think, continue on the investments and the capacity, I think expansion, I think definitely, I think Tongwei is one of the bigger player, as you can see that, but they also continue to vertically integrated. And we don't know the future, what's going on, okay, how much percentage of the polysilicon where we go to vertical integration? How much will go to the market? But definitely, I think Daqo is one of I pure, think, a silicon producer player, and we will not touch you know, I think the downstream, we do whatever we expert on. So I think we definitely will be one-off player. And then maybe, I think Tongwei is one of player. Then also I think, Asian polysilicon is going to IPO. We don't know the future, whether they can successfully IPO or not, raise enough money to keep up you know, pay with us, compete with us. Then another is a new horizon. I think that's you see the only thing left for right now, the major player there.