百勤油服(02178) - 致非登记股东之通知信函 - 2025年中期报告的发布通知

（於英屬維爾京群島註冊成立的有限公司） （Stock Code 股份代號：2178） NOTIFICATION LETTER 通 知 信 函 Dear Non-registered Shareholder (Note 1) , 18 September 2025 PETRO-KING OILFIELD SERVICES LIMITED 百勤油田服務有限公司 (Incorporated in the British Virgin Islands with limited liability) Notes: The following document(s) of Petro-king Oilfield Services Limited ("Company") has/have been prepared in English and Chinese and is/are available on the websites of the Company at www.petro-king.cn and The Stock Exchange of Hong Kong Limited at www.hkexnews. ...