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CCCC Fourth Harbor Engineering Institute Co., Ltd. (CCCC 4th Harbor Institute for short), established in 1965, is affiliated with CCCC Fourth Harbor Engineering Co., Ltd. (CCCC Fourth Harbor for short) and is a third grade subsidiary of China Communication Construction Group Co., Ltd. (CCCC for short). CCCC 4th Harbor Institute is a sci-tech enterprise engaging in providing technical research & development, technical service, engineering quality testing & detection, new materials research & development and professional engineering construction for infrastructure and engineering such as waterway, road, railway, irrigation engineering, municipal engineering, civil engineering and so on. The institute has been issued `High-tech Enterprise` Certification.

CCCC 4th Harbor Institute has strong scientific research strength, possessing many scientific research platforms including Key Laboratory of Harbor & Marine Structure Durability Technology, Ministry of Transport of PRC, CCCC Key Laboratory of Construction Materials, CCCC Key Laboratory of Environmental Protection and Safety in Foundation Engineering of Transportation and so on. Besides, CCCC 4th Harbor Institute has set up its own Post-doctoral Scientific Research Workstation. It is also an affiliated construction unit of Harbor Engineering Technology Research and Development Center in Guangdong Provinceand it participated in setting up National Engineering Research Center of Dredging Technology & Equipment (Dredged Soil Treatment Center). In addition, the institute has went into cooperation with many top universities in China such as Hohai University, Dalian University of Technology, South China University of Technology, Wuhan University of Technology, PLA Logistic Engineering University and Chongqing Jiaotong University, Tsinghua University, Tongji University, etc. to improve scientific and technological researches and educate the doctorate and postgraduate students.

CCCC 4th Harbor Institute has made great research achievements which had promoted the development of industrial technology in China. In the recent five years, CCCC 4th Harbor Institute has won more than 100 different scientific and technological awards, in the level of province (ministry) or above and the CCCC Group level, including a first prize and a second prize of National Scientific and Technological Progress Award. CCCC 4th Harbor Institute has participated in more than 30 Specification and Standard (as chief editorial unite or participating unit). In addition, CCCC 4th Harbor Institute has 73 national patents including 29 patents of invention. It also has 5 Construction Methods of national level and 12 Construction Methods of provincial (ministerial) level and Group level. As for the paper, CCCC 4th Harbor Institute has published more than 500 papers in core journals and international academic conference at home and abroad, of which 6 papers were indexed by SCI (Science Citation Index), 100 papers were indexed by EI (The Engineering Index) and 17 papers were indexed by ISTP.

CCCC 4th Harbor Institute has gained great achievement in the fields of soft ground  improvement, eco-environmental geotechnical engineering, high performance concrete and durability technology, engineering anti-corrosion and protection, crack control of concrete structures, load bearing & construction quality control for foundation pile engineering, hydrodynamic analysis of marine construction, detection, evaluation, maintenance & reinforcement of harbor and bridges, detection of construction materials, construction and monitoring of bridges engineering, etc.  The majority of these technologies are of international leading level or domestic leading level, and many have been successfully applied to construction. CCCC 4th Houbor Institute has undertaken business in South China, North China, East China, Central China, Southwest Region, Northeast Region, Macao, Hong Kong other regions in China, and it has expanded its business to Southern Asia, Southeast Asia, Middle East, East Africa, West Africa, North Africa, Southen Europe and other overseas regions. It has achieved good social, economic and environmental benefits.

For long time, CCCC 4th Harbor Institute has been providing high quality service for clients in China and foreign countries, sticking to its strategy of combining the scientific researches with practicing and its principle of “keeping promise, quality guaranteed, first-rate service and clients satisfied”. CCCC 4th Harbor Institute gains striding development as well as sound reputation. It has been issued many awards, such as State-level Civilized Unit, Guangdong Advanced Collective, Advanced Collective of Central Enterprise, National Outstanding Transportation Enterprise Cultural Building Unit of 2009, National Credit Enterprise, Guangdong May One Labor Award, Guangdong Labor Competition Model of Ten Projects, Outstanding Contribution Prize of 1st Marine Engineering Standard Award, Guangdong Independent Innovation Benchmarking Enterprise, Advanced Award Winning Unit of Science and Technology Award of Marine Construction Industry, etc. Moreover, CCCC 4th Harbor Institute Party Organization has been cited as Advanced Basic-level Party Organization of Central Enterprise by SASAC (State-owned Assets Supervision and Administration Commission) and Advanced Basic-level Party Organization by CCCC,ect.