Tianjin and Arica are friendly associated on June, 30th,  in 1997.

Arica is a commune and a port city with a population of 192,300(2005) in the Arica and Parinacota Region in northern Chile, located only 18 km (11 miles) south of the border with Peru.

The Potosi silver mine was the largest such mine in world history. Because of it, Arica became a crucial port for the Spanish Empire. This port was looted by such famous pirates, buccaneers, and privateers as Francis Drake, Thomas Cavendish, Richard Hawkins, Joris van Spilbergen, John Watling, Simon de Cordes, Leandro de Valencia, Bartholomew Sharp, William Dampier, and John Clipperton.

Arica is also known as one of the driest inhabited places on Earth, at least as measured by rainfall: average annual precipitation is 0.76 mm (0.03 inches), as measured at the airport meteorological station.

Among the attractions are the Arica Morro de Arica, the "founding square" (for the civic center of town), the Cathedral of San Marcos de Arica, the former house of the Governor, the House of Culture, railway station Arica-La Paz, the Archaeological and Anthropological Museum of San Miguel de Azapa, Sea and Historical Arms and Arica. For evening entertainment there is the "Casino de Arica".