Group 1 - The core viewpoint is that Dongfang Zhongke (002819.SZ) is actively involved in providing solutions for domestic operating systems through its subsidiary Zhongke Honglue, focusing on the Harmony operating system [2][3] - Zhongke Honglue offers specialized software design and development for the Harmony operating system, catering to various hardware including tablets, smartphones, handheld devices, and PCs [2]