2025年8月11日，中诚信国际公布评级报告，山东港口投资控股有限公司主体等级获"AA+"评级。 中诚信国际认为，山东港口投资控股有限公司信用水平在未来12~18个月内将保持稳定。 来源：金融界 本次跟踪维持主体上次评级结论，主要基于山东港口投资控股有限公司（以下简称"山东港口投 控"或"公司"）较强的股东背景、类金融板块通过协同优势发挥较强的综合金融服务能力、近年来盈利 表现较好等正面因素对公司整体经营及信用水平的支撑作用。同时，中诚信国际关注到类信贷业务集中 度较高、产业投资业务尚未经历完整的投资周期以及债务规模持续上升等因素对公司经营及信用状况造 成的影响。 ...

Group 1 - The core viewpoint of the news is that Changshu Development Investment Co., Ltd. has received an "AA+" rating from China Chengxin International, indicating strong economic and financial strength and growth potential [1] - The company is recognized as a significant state-owned capital investment management entity for Changshu City, maintaining a close relationship with the local government [1][2] - The investment management business of the company is expected to stabilize, with good asset quality and strong refinancing capabilities [1] Group 2 - Changshu Development Investment Co., Ltd. was established in October 2000 and became a wholly state-owned company in January 2006, under the supervision of the Changshu Municipal Government [2] - As of March 2025, the company's registered and paid-in capital is 7.884 billion yuan, fully owned by Changshu State Capital Investment Operation Group Co., Ltd. [2] - The company's business scope includes commercial property leasing, real estate sales, grain and oil trading, and quasi-financial services [2]