Group 1: Dapeng Industrial (920091.BJ) - Dapeng Industrial is a leading manufacturer of specialized intelligent equipment for industrial precision cleaning, primarily serving the automotive and new energy sectors [2][4] - The company plans to use raised funds for the development of an intelligent industrial cleaning equipment production base and a machine vision detection equipment R&D center, with investments of 0.95 billion and 0.34 billion respectively [3][4] - Dapeng Industrial has established long-term partnerships with major automotive manufacturers such as BYD, Changan, and Geely, but faces challenges with long accounts receivable cycles due to complex payment processes [5] Group 2: Fengbei Biological (603334.SH) - Fengbei Biological focuses on the comprehensive utilization of waste oil resources, producing bio-based materials and biofuels, with a significant portion of revenue derived from this core business [6][8] - The company has established a strong customer base, including global trading firms and agricultural leaders, with a market share of approximately 4.68% in the bio-diesel sector and 6.72% in pesticide additives [7][8] - Financial performance shows revenue growth from 17.09 billion in 2022 to 19.48 billion in 2024, although net profit has seen a decline [7][8]