Group 1: Xi'an Yichuang (科创板, 688) - The company is set to issue shares at a price of 8.62 yuan, with a total market capitalization of 30.17 billion yuan [2] - The main revenue sources include testing wafers (43.68%), semiconductor silicon polishing wafers (39.16%), and semiconductor silicon epitaxial wafers (16.66%) [2] - The company has become the largest producer and seller in mainland China, with a strong demand forecast for chips driven by emerging applications like artificial intelligence [2][3] Group 2: Heyuan Biological (科创板, 688) - The company plans to issue shares at a price of 29.06 yuan, with a total market capitalization of 7.789 billion yuan [5] - It utilizes a rice endosperm cell bioreactor technology platform (OryzPur) to develop a comprehensive range of pharmaceuticals [5] - The company is a pioneer in using rice endosperm cell bioreactors for producing human serum albumin, which has significant clinical demand and market potential in China [6] Group 3: Changjiang Energy Technology (北交所, 920) - The company will issue shares at a price of 5.33 yuan, with an issuance price-to-earnings ratio of 14.99 [8] - It focuses on the design of energy and chemical specialized equipment, including heat exchange equipment, storage equipment, carbon capture equipment, and hydrogen energy equipment [8] - The company's core product, electro-dehydration equipment, is critical for oil extraction, ensuring that crude oil meets export standards [8]

Group 1: Xi'an Yicai (688783.SH) - Xi'an Yicai is a leading manufacturer focused on the research, production, and sales of 12-inch silicon wafers, ranking first in China and sixth globally in terms of monthly shipment volume and production capacity by the end of 2024 [1][3] - The company has established its first core manufacturing base in Xi'an, with the first factory reaching production capacity in 2023 and a second factory set to commence production in 2024, aiming for full capacity by 2026 [3] - By the end of 2024, the company's combined production capacity is expected to reach 710,000 wafers per month, capturing approximately 7% of the global market share for 12-inch silicon wafers [3] - Xi'an Yicai has become a key supplier for major domestic logic wafer foundries and storage IDM manufacturers, holding a leading position in supply volume among global 12-inch silicon wafer suppliers [3] - The company has applied for a total of 1,635 patents, with over 80% being invention patents, making it the largest holder of authorized invention patents in the 12-inch silicon wafer sector in mainland China [4] Group 2: Changjiang Nengke (920158.BJ) - Changjiang Nengke specializes in the design, research, manufacturing, and service of energy and chemical equipment, recognized as a national-level "specialized and innovative" small giant enterprise [5][6] - The company’s main revenue sources include electric desulfurization equipment and other energy chemical equipment, with electric desulfurization contributing 64.80% of revenue in 2024 [7] - Changjiang Nengke has established itself as a leading supplier in the electric desulfurization market, holding the top market share in China from 2021 to 2023 [7] - The company has received multiple technology advancement awards and certifications for its products, including recognition for its contributions to complex oilfield engineering projects in the Middle East [7] - The gross profit margins for the company have fluctuated significantly, with rates of 48.15%, 32.19%, and 41.17% from 2022 to 2024, indicating potential risks related to pricing and cost pressures [8]