On March 29, 2008, the conference of 2008 China Coating and Painting, Pigment Industry was held in Wuhan city, Mr.Linzhihua gave a speech on behalf of Iron Oxide Association.The title of his speech is promoting the standing development of iron oxide on the basis of saving energy and reducing waste, he often praised the efforts of Yixing City Yuxing Industry & Trade Co., Ltd. The company has reached the standard of letting of COD in 2007 and resulted in saving energy, reducing waste, environmental protecting, cycled economy, persisting development.