China Philatelic National Corporation issued a set of three stamps and a souvenir sheet (shown above), wherein, the stamp sheet shows a container ship at terminal in the Port of Tianjin / Tianjin Gang, with satellite view of the port on the background image. It is one big stamp sheet measuring 7.5 x 14.8 cm, the shape of stamp is unusual and with one elliptical perforation at the middle of the perforation in the left and right side of the stamp.
Port of Tianjin: Formerly known as the Port of Tanggu, is the largest port in Northern China and the main maritime gateway to Beijing. It is located on the western shore of the Bohai Bay, centered on the estuary of the Haihe River. It is the largest man-made port in mainland China, and one of the largest in the world. The port trades with more than 600 ports in 180 countries and territories around the world. It is served by over 115 regular container lines run by 60 liner companies, including all the top 20 liners.
The port is part of the Binhai New Area district of Tianjin Municipality, the main special economic zone of Northern China. The Port of Tianjin is at the core of the ambitious development program of the Binhai New Area.
Many thanks to my friend in Facebook, Deng Yong Chun from Beijing, China for sending this stamp sheet on envelope.
Text Source: Wikipedia.