If you do not mind, let me make a brief introduction of our company-GUIZHOU PROVINCE KAIYANG ANDA PHOSPHORUS CHEMICAL CO.,LTD(ANDA). ANDA is one of largest stpp manufacturers in China, owns phosphorus rock mountains-40000000MT reservation, Yellow phosphorus-34000MT/a, Phosphoric acid-120000MT/a, STPP tech grade-120000MT/a. Currently the new production line for white carbon black is under construction, one brick plant has been already started, so the large material and energy circulating system has been realised, which makes the best use of phosphorus and other residues, meanwhile highly praised by governments and other phosphate companies.