润邦股份：公司业务暂未涉及海南省内的港口基础设施投资与建设项目

Group 1 - The core business of the company's subsidiary, Hainan Runzhou Shipping Co., Ltd., includes domestic and international maritime cargo transportation, demonstrating cross-regional shipping service capabilities [1] - Currently, the company's operations do not involve investment and construction projects related to port infrastructure within Hainan Province [1]