Group 1 - The core viewpoint of the article is that Tielong Logistics (600125) has clarified its business operations and the minimal impact of certain services on its performance [1] Group 2 - The company primarily operates in domestic railway special container logistics, railway freight, and port logistics [1] - The company is involved in the China-Europe Railway Express business through its affiliated companies, but this has a negligible effect on its overall performance [1]