长源东谷：关于收到客户定点通知函的公告

Core Points - Changyuan Donggu has received a notification letter for engine cylinder block and cylinder head precision machining from a new client, which cannot be disclosed due to a confidentiality agreement [1] - The project is expected to start mass production in the second half of 2026 and will not have a significant impact on the company's performance for the current year [1]