The South Koreans claimed their fourth cup in the world mixed teams competition with a charged 21-17, 21-13 win by Choi Sol-Gyu and Chae Yoo-Jung in the mixed doubles match.
The victory -- their first in the biennial tournament since Eindhoven in 2003 -- ended China's 14-year grip on the Sudirman Cup.
South Korea, who also won the Sudirman Cup in 1991 and 1993, fought back from 2-1 down in the final to claim victory.
It was an outstanding performance by Choi and Chae, ranked 14th in the world, against the second-ranked Chinese combination of Lu Kai and Huang Yaqiong.
Rio Olympic champions Fu Haifeng and Zhang Nan gave China a confident start, rolling through the opening men's doubles match 21-14, 21-15 in 42 minutes.
World bronze medallist Sung Ji-Hyun levelled the final when she mastered He Bingjiao in the women's singles 21-12, 21-16 in 49 minutes.
But third world-ranked pair Chang Ye-Na and Lee So-Hee took the final into a fifth match with a 21-19, 21-13 win over Chen Qingchen and Jia Yifan in a 55-minute women's doubles rubber.
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