Group 1 - The core viewpoint of the news is that XuanYuan Investment has conducted research on a listed company, Sanfu New Technology, focusing on its innovative 3D composite copper foil products which enhance the energy density, conductivity, and safety of lithium batteries [1] - Sanfu New Technology's 3D composite copper foil is currently in the sample testing phase and is expected to be applied in high-end consumer electronics, low-altitude economy, new energy vehicle power batteries, and solid-state batteries [1] - The company is planning to complete the production of key materials for a 5GWh high-safety dry electrode battery in Longnan, Jiangxi within three years, using a phased flexible ramp-up strategy to dynamically optimize the implementation progress [1] Group 2 - Sanfu New Technology has indicated that the cost of the 3D composite copper foil involves commercial secrets but possesses potential for cost optimization, aiming to provide high cost-performance products [1] - The company suggests that stakeholders should pay attention to its regular reports for guidance on profitability for this year and the next [1]