Group 1 - The core business of the company is the research, development, production, and sales of semiconductor process equipment, system integration, and supporting equipment, as well as related components, materials, and professional services [1][2] - The company is a mainstream qualified supplier in the domestic high-purity process systems and semiconductor equipment field [2] - Recent stock price increases are driven by the active semiconductor sector, with the company benefiting from the overall market momentum [3] Group 2 - The company has strong connections with major clients in the semiconductor industry, including well-known domestic enterprises like Shanghai Huali and SMIC, which has contributed to its stock performance [3] - The company plans to acquire 83.78% of Weidun Crystal Phosphorus through a combination of issuing shares and cash payments, which will make it a subsidiary and enhance its capabilities in high-purity electronic materials for integrated circuits and photovoltaics [3][4] - The stock has seen a significant increase of 21% over two trading days, indicating strong upward momentum supported by technical indicators [5]