Core Viewpoint - Longjin Technology (300594) reported a slight decrease in total revenue for 2024, amounting to 881 million yuan, while focusing on expanding new business areas that have yet to contribute to profits [1] Group 1: Business Performance - The company specializes in the research, production, sales, and maintenance services of air conditioning systems for rail transit vehicles [1] - Longjin Technology's air conditioning business for rail transit vehicles continues to show steady growth, successfully winning several key projects including various metro lines in cities like Shanghai, Shenzhen, and Beijing [1] Group 2: Product Development - The company has produced variable frequency air conditioning products that are operational in 49 cities across 34 provinces, with a total of 30,000 units, saving approximately 37.5 million kWh of electricity annually and reducing carbon dioxide emissions by 37,500 tons [2] - In the field of new energy and intelligent thermal management products, the company is enhancing its integrated thermal management air conditioning systems, which effectively manage cooling and heating needs while recovering heat for winter heating [2] Group 3: Digital Energy and Cooling Solutions - Longjin Technology has leveraged its brand advantages in the energy storage sector to expand its client base, securing orders from major industry players and delivering a leading volume of 5MWh platform products [3] - The newly launched liquid cooling temperature control product series meets extreme environmental requirements, ensuring reliable operation of energy storage systems, with cumulative shipments exceeding 35GWh [3]