Sacheon, South Gyeongsang Province (South Korea)

The flag of Sacheon is white with mark.
http://www.4000news.com/gisa/view.html?number=25&hosu=1037ho
Tomislav Šipek, 26 August 2019

From the Sacheon website:

The circle represents Sacheon's sky, land, and sea in harmony. It also represents local characteristics, people's mind, unity, and hope. It symbolizes high spirit and endless development of Sacheon achieved by creating dynamic feeling within stability.

[top semicircle] It expresses the rising sun and flying high. It symbolizes a dynamic city and endless developmental potential and hope.

[Three] white lines represent cheon(meaning stream) in the word Sacheon and undulating waves in the sea. They symbolize high spirit, endless development, and prosperity of Sacheon

[circle] Represents harmony and unity of people and diligent and well-rounded image of people.

researched by Phil Nelson, 23 October 2005