Group 1: Company Overview - China Electronics Technology Blue Sky Technology Co., Ltd. (referred to as "Blue Sky Technology") has submitted its IPO application to the Shanghai Stock Exchange's Sci-Tech Innovation Board, aiming to raise 1.5 billion yuan [1] - Blue Sky Technology specializes in the research, production, sales, and service of electric energy products and systems, offering comprehensive solutions from power generation to energy storage and control [1] - The company has a significant historical contribution to China's space exploration, having provided power products for over 700 satellites, spacecraft, and space stations since 1970 [1] Group 2: Industry Position - Jiangxi Hongban Technology Co., Ltd. (referred to as "Hongban Technology") has also submitted its IPO application to the Shanghai Stock Exchange's main board, with a fundraising target of 2.057 billion yuan [2] - Hongban Technology focuses on the research, production, and sales of printed circuit boards (PCBs), targeting the mid-to-high-end application market with high precision, density, and reliability [2] - The company has established a comprehensive product structure, including HDI boards, rigid boards, flexible boards, and IC carrier boards, and is recognized for its competitive advantage in consumer electronics and automotive electronics [2]