Anhui Conch Cement upped its stake in Tangshan Jidong Cement during the September-December period, purchasing a total of 60.69 million shares, or five per cent of the latter's total equity, it was reported, citing a company filing.

Through December 7, Conch Cement held a total of 183 million shares, or a 15.05 per cent stake, in Jidong Cement.

Conch Cement had purchased 9.34 million shares in September at prices ranging from between 14.88 yuan and 16.5 yuan per share, before acquiring another 13.35 million shares in October at 15.26 -16.5 yuan per share.

Conch Cement bought 17.95 million shares at 15-16.51 yuan per share in November, and bought 5.1 million shares at between 15 yuan and 15.9 yuan per share during the first five trading sessions in December.

Conch Cement had previously acquired shares of Jidong Cement in August 2008 and April 2010.