天风证券给予中材国际买入评级，上半年海外新签合同高增

Group 1 - The core viewpoint of the report is that Tianfeng Securities has given a "buy" rating for China National Materials International (600970.SH) based on several positive indicators [1] - The company's production and operation business saw a year-on-year increase of 10% in the first half of the year, with overseas revenue maintaining high growth [1] - There is a significant increase in engineering and equipment orders for the first half of 2025, ensuring a sufficient backlog of orders to support long-term development [1] - The company's gross profit margin and operating cash flow have declined in the first half of the year, but the expense ratio continues to improve [1]