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Chiang Saen Port has been built to serve the government's policy on improving international transport network for the convenience of tourism, trade and investment.
It is part of the government's efforts to promote the country as a gateway for the development of Indochina and the Greater Mekong Sub-Region under the cooperation of six countries including Thailand, China, Laos, Myanmar, Cambodia and Vietnam.
On March 25, 2003, the Cabinet resolved to authorize the Port Authority of Thailand (PAT) to manage and operate the port, which was officially put into service on October 1, 2003.