What are the subordinate units of Jiangxi Provincial Communications Department? Be specific.

Office logistics center; Office information center; Provincial Highway Administration Bureau; Provincial Road Transportation Administration; Provincial Port and Shipping Administration; Provincial high-grade highway administration bureau; Jiangxi Highway Development Corporation; Provincial Traffic Engineering Quality Supervision Station; Jiangxi Traffic Engineering Consulting and Supervision Center; Jiujiang Yangtze River Bridge Highway and Bridge Administration; Planning office; Foreign Economic Liaison Office; Traffic Design Institute; Institute of Transportation Science; Traffic union; Traffic Vocational and Technical College; Traffic cadre school; Jiangxi Ocean Shipping Company; Jiangxi province expressway network toll settlement highway center, etc.