The company has a wealth of construction experience in port engineering at home and abroad , such as Panama, Lebanon, Saudi Arabia, Sudan and etc. The construction of 301 nos. bored piles in Panama BLA wharf has solved the construction problems of pile boring in mudstone stratum whose rock will swell meeting with water. In Sudan livestock wharf, the bored piles have been successfully piled in the coral reef stratum that the bored hole is easily collapsed during piling. Rock-socketed inclined pile construction was successfully carried out in Guangdong Lisha Island with new technology. In Shenzhen mazhou shipyard slide pile construction, 2 m diameter drill bit was used and successfully penetrated the reinforced concrete floor of caisson without damage and displacement.