Siam Refractory Industry Co., Ltd., Thang Long Cement Joint Stock Company and Viet Duc Investment Trading Co., Ltd. signed a contract for the supply of refractory products and services for Thang Long Cement Project for which Siam Refractory and Viet Duc joined hands as a joint bidder. The project involves a construction of Thang Long’s No.1 production line in Quang Ninh province around 150 km north of Hanoi, which, once completed, will have a capacity of 6,000 tons per day making it one of the largest cement plants in Vietnam.