Core Viewpoint - Taiji Industry (600667) is actively engaged in the semiconductor business, providing packaging, testing, module assembly, and module testing services for integrated circuit products such as DRAM and NAND Flash [1] Group 1: Business Operations - The semiconductor business primarily relies on subsidiaries Haotai Semiconductor (Wuxi) Co., Ltd. and Taiji Semiconductor (Suzhou) Co., Ltd. for its operations [1] - Haotai Semiconductor focuses on the packaging and testing of DRAM products, as well as module assembly and testing [1] Group 2: Contracts and Agreements - Haotai Semiconductor has signed a "Fourth Phase Backend Service Contract" with SK Hynix, which will be effective from July 1, 2025, to June 30, 2030 [1] - The contract stipulates that Haotai Semiconductor will provide backend services to SK Hynix based on a "total cost + agreed profit" profit model [1]