Hong Kong-listed construction materials and cement stocks firmed after volatile trading: China National Building Material (03323.HK) surged over 17%, China Lesso Group (02128.HK) rose more than 5%, while Huajian New Materials (06655.HK) and BBMG (02009.HK) also advanced.

Beijing Municipal Bureau of Economy and Information Technology issued measures to support industrial firms' quality and efficiency upgrades, directing major exhibitions to establish Beijing-made product zones for embodied intelligence, high-end chips, smart wearables and intelligent connected vehicles and to strengthen scenario displays and promotion. The measures encourage firms to use trade shows for new-product demos, technology showcases, supply–demand matching and order negotiations to boost the brand influence of Beijing industrial products.

Huludao Maritime Safety Administration posted on the China Maritime Safety Administration website that parts of the Bohai Sea will be closed to navigation for military exercises from 00:00 to 18:00 on June 18.