Anhui Conch Cement Co., Ltd. known also as Anhui Conch or Conch Cement, is the largest cement manufacturer or seller in the mainland China, headquartered in Anhui Province. Its business scope covers the manufacture and sales of cement and clinker. Its H-share was listed in the Hong Kong Stock Exchange on October 21, 1997, while its A-share was listed in the Shanghai Stock Exchange on February 7, 2002. Wikipedia