民爆概念活跃，国泰集团、凯龙股份涨停，山西废止烟花爆竹“禁放令”

Group 1 - The core viewpoint of the news is the active performance of Chinese A-share market stocks related to the civil explosives sector, following the announcement by the Shanxi provincial government to lift a ban on fireworks and firecrackers, shifting from a "complete ban" to "orderly control" [1] - The Shanxi provincial government has officially abolished 124 administrative normative documents, including the ban on the production, operation, storage, transportation, and use of fireworks and firecrackers issued on August 17, 2020 [1] - The China Fireworks Association has expressed its support for Shanxi's adjustment of fireworks policies, aiming to promote healthy and orderly development in the industry [1] Group 2 - Notable stock performances include Guotai Group and Kailong Co., both reaching the daily limit up of 9.99% and 9.97% respectively, while Xiaocheng Technology increased by over 4% [2] - Other companies in the sector also saw significant gains, with Poly United, Xinyu Guoke, and Gaozheng Minexplosion rising over 3%, and Tongde Chemical increasing by over 2% [2] - Year-to-date performance shows Xiaocheng Technology leading with a 107.54% increase, followed by Gaozheng Minexplosion at 50.48% [2]