Group 1 - The core point of the article is that Radrock Technology Co., Ltd. (referred to as "Radrock") is undergoing a new round of listing guidance, with Guotai Junan Securities as the guiding institution [1][3] - Radrock was established on April 1, 2017, with a registered capital of 382.490525 million yuan, and its controlling shareholder is Ni Jianxing, who holds 19.35% of the shares [2][8] - The company specializes in the research, design, production, and sales of RF front-end chips and modules, which are crucial for the new generation of information technology and strategic emerging industries [2][5] Group 2 - Radrock has launched a full industrial chain capability, including chip design, module integration, and filter wafer manufacturing, to meet the growing demand for RF front-end products in the smartphone and IoT markets [5][12] - The company has introduced various high-performance RF front-end products, including 4G Phase 2, 5G Phase 5N, and WiFi FEM, to cater to domestic smartphone manufacturers [5][12] - This is the third time Radrock has initiated listing guidance in three years, indicating a history of attempts to go public [5][13] Group 3 - The company has undergone changes in its registration location and name, moving from Shenzhen to Chongqing and rebranding itself accordingly [8][12] - Radrock has completed multiple rounds of financing since its establishment, with investments from notable firms such as OPPO and others [12] - The company is part of the supply chains for well-known brands like ZTE, OPPO, and Xiaomi, highlighting its market presence [13]