Group 1 - The company has established a complete product matrix in the high-end PCB manufacturing field, including specialized chemicals and plating equipment necessary for key processes such as horizontal copper deposition, pulse plating, hole filling plating, and chemical nickel-gold [1] - The company's customer base includes over fifty PCB manufacturers, primarily consisting of leading companies or publicly listed firms in the PCB industry [1] - The company's PCB-specific chemicals and copper foil production equipment have been applied in the manufacturing of AI server boards, indicating a focus on the AI application sector [1] Group 2 - The company is actively developing advanced surface treatment processes to meet the demands for high-precision circuit manufacturing [1]