Group 1 - The company is actively laying out high-frequency and high-speed resins, including hydrocarbon resins [1] - As of now, the company has obtained 17 national invention patents related to high-frequency and high-speed resins, with 3 invention patents currently under application [1] - Detailed information regarding the patents, including names and contents, can be found in the company's periodic reports disclosed on the Shanghai Stock Exchange website [1]