Photo taken on May 31, 2018 shows the plant of Battambang Conch Cement Company Limited in Battambang Province, Cambodia. Battambang Conch Cement Company Limited, a 230-million-U.S.-dollars joint venture between Cambodian and Chinese companies, was inaugurated here Thursday, bringing the total number of the cement production plants in Cambodia to four. (Xinhua/Mao Pengfei)