Lapis Lazuli pigments devotes itself to promoting the industrial upgrading, and puts the environment protection at the first place. The FGD system to be installed and trial ran adopts the advanced wet desulfurisation device, which can significantly reduce the sulfur dioxide emission by 99.9%. It will also help the chimney stack to keep unobstructed in the cold weather, therefore, the seasonal problem in ultramarine manufacture can be conquered as well. The total investment of FGD system is more than 50 million RMB. By its completion, Lapis Lazuli Pigments Co., Ltd will be the only ultramarine manufacturer in China with FGD,