Overall Situation - The company reported its operational performance for the civil engineering and construction business in the fourth quarter of 2025 [1] Major Project Signing or Execution - On November 10, 2023, the company signed a total engineering contract (EPC) with Northern Huajin United Petrochemical Co., Ltd. for the fine chemical and raw material engineering project, which includes sulfur recovery, acidic water vapor extraction, and solvent regeneration facilities [1] - The total contract price (including tax) for the project is RMB 1,306.60 million, with a pre-tax amount of RMB 1,171.66 million [1] - As of December 31, 2025, the project generated revenue of RMB 992.28 million, with cumulative receipts amounting to RMB 834.63 million [1]

2025年第四季度土木工程建筑业务经营情况简报 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有 虚假记载、误导性陈述或重大遗漏。 山东三维化学集团股份有限公司（以下简称"公司"）现将2025年第四季度土 木工程建筑业务经营情况公告如下： | | 第四季度 | | 截至报告期末累计已 | | 第四季度 | | | | --- | --- | --- | --- | --- | --- | --- | --- | | 项目 | 新签约订单 | | 签约未完工订单 | | 已中标未签约订单 | | 备注 | | 类型 | 数量 | 金额 | 数量 | 金额 | 数量 | 金额 | | | | （个） | （万元） | （个） | （万元） | （个） | （万元） | | | 咨询设 | | | | | | | 工 程 咨 | | 计技术 | 19 | 2,730.55 | 86 | 20,068.16 | | | 询、工程 | | 性服务 | | | | | | | 设计项目 | | 工程总 承包类 | 3 | 11,830.60 | 18 | 111,343.32 | 1 | 2,110.00 ...

Core Viewpoint - The Huajin Aramco fine chemical and raw material engineering project has made significant progress with the mechanical completion of 11 units, transitioning from the construction phase to the production preparation phase [1][2] Group 1: Project Progress - On July 29, 11 units including sulfur recovery and various hydrogenation facilities achieved mechanical completion [1] - The project is located in the Liaobin Coastal Economic and Technological Development Zone with a total investment of 83.7 billion yuan, focusing on the construction of 32 production units including 15 million tons/year refining and 1.65 million tons/year ethylene [1] - The project has seen thousands of construction workers on-site, transforming the area into a new chemical city within 28 months [1] Group 2: Future Steps - The project team will strictly follow regulatory requirements to advance the "three checks and four determinations" process, ensuring a solid foundation for high-quality intermediate handover and steady project progress [2]