JIT MARINE SERVICE CO., LTD was established in 1999 at Dalian as a completely independent maritime survey company serving not only the local but also nationwide.The main ports in our country such as Shanghai Port, Tianjin Port, Dalian Port, Bayuquan Port, Qingdao Port and all ports alongside Changjiang River. As well as some outlying ports could be served, such as Dafeng Port in Jiangsu Provice, Machong Port in Guangxi Provice, Huanghua Port in Hebei Provice and so on.