A股光刻机概念股再度活跃，凯美特气涨停，蓝英装备涨7%，中瓷电子、旭光电子、久日新材跟涨。

Group 1 - The A-share photolithography concept stocks have become active again, with Kaimeteqi hitting the daily limit up, indicating strong market interest [1] - Blue Eagle Equipment rose by 7%, reflecting positive sentiment in the sector [1] - Other companies such as Zhongci Electronics, Xuguang Electronics, and Jiuri New Materials also experienced gains, suggesting a broader rally in the photolithography-related stocks [1]