Regarding my tales of business, I can share with you more some day when we meet face by face. Sometimes some partner do not understand business ethic, I arranged free samples and they choose to work with trading company, trading company's logic is find chance, get it then disappear, not easy for them to pay additional more attention to this industry again. Sometimes I can get some request from such partners for after sales support. I focus on this industry and make my efforts and use heart to handle business and sales support. Sometimes it is hard to say. So I make my decision to focus on products which I have total control.