FASTEN(SZ:000890) Jin Rong Jie·2026-02-26 02:03Group 1 - The core point of the article highlights that the stock of Farsen has achieved a four-day consecutive limit-up, indicating strong market interest and performance [1] - The stock reached its limit-up at 9:43 AM with a trading volume of 573 million yuan and a turnover rate of 17.85% [1] - Farsen's main business includes metal products such as steel wires and steel cord, while also expanding into environmental sectors like construction waste classification and high-salinity water treatment in coal mining [1] Group 2 - The company is set to undergo a re-evaluation for the "specialized and innovative" small giant recognition by the Ministry of Industry and Information Technology in September 2024 [1] - Farsen has investments in companies involved in optical fiber and cable businesses, aligning with the optical communication concept that has recently gained market attention [1] - The recent market focus on related concept sectors has contributed to Farsen's increased visibility and interest among investors [1]