Group 1 - The company, Pairui Co., Ltd. (300831.SZ), has signed a strategic cooperation agreement with Xi'an Power Electronics Research Institute (referred to as "Xi'an Institute") [1] - The collaboration aims to jointly develop and manufacture power devices represented by medium and high voltage IGBTs [1] - Xi'an Institute will be responsible for independent research and design, as well as chip production, while Pairui will handle device packaging and testing [1]

Core Viewpoint - On September 1, the company signed a strategic cooperation agreement with Xi'an Power Electronics Research Institute to jointly develop and manufacture power devices represented by medium and high voltage IGBTs [2] Group 1: Strategic Cooperation - The agreement outlines that Xi'an Power Electronics Research Institute will focus on the independent research and design of IGBT device chips, as well as their production and testing [2] - The company will research packaging technology for high voltage IGBT devices based on its existing packaging lines, aiming to expand production scale and automation levels [2] - The agreement is a preliminary intention for strategic cooperation and does not involve specific financial amounts [2] Group 2: Company Background - Xi'an Power Electronics Research Institute was established in 1995 with a registered capital of 12.02 million yuan, primarily engaged in technology services, development, consulting, exchange, transfer, promotion, machinery equipment leasing, non-residential real estate leasing, and import-export of goods [2] - Xi'an Power Electronics Research Institute holds a 39.55% stake in the company, making it the controlling shareholder [2]