中材国际：全资子公司签订2.99亿加元合同

Group 1 - The core point of the article is that China National Materials International (中材国际) has signed a contract worth 299 million Canadian dollars with Canada Amery Limited for engineering design and related services for a cement clinker production line [1] Group 2 - The contract involves the provision of engineering design, debugging, procurement, supply, and other related services for a production line with a daily capacity of 3,300 tons of cement clinker [1]