Pusan, South Korea

From: http://www.metro.pusan.kr/eng/pusan_main_symbol.html

Symbol mark

The upper triangle represents the universe, space and creation, and the lower means the sea and background of Pusan. And the two waves mean spreading toward  the world and future. The whole symbolized the valance and vitality.

Emblem

Pusan is shaped by mountain, the river, and the sea which in Chinese means "sampojihyang". The seagull and five-six Islands are the symbols of Pusan which express its balance and vitality.

Dov Gutterman, 15 Mar 1999

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I just sources about Busan flag, and found both flags (one with city enmble and the other simplified) were used on different sites. I am not sure which one is new or official.
George Jen, 27 August 2007