Lee Chae Hyung led the Koreans with 16 points, 5 rebounds, and 4 assists, none bigger than the dime that led to a Lee Juyeong bucket with 30 seconds left to put them ahead for good after losing a 19-point lead early.
Lee finished with 14 points and 7 rebounds, while Yoo Minsoo added 10 points and 9 rebounds as the trio played the full 40 minutes.
Mohammad Amini led Iran with 20 points and 13 rebounds in the heartbreaking defeat as they fell short in replicating their comeback win versus Japan Tuesday night.
Matyar Ahmadpour had 14 points and 6 assists in the defeat.
China, Japan, Lebanon and South Korea, as the competition’s top four teams, qualify for the 2023 FIBA U-19 Basketball World Cup which will be held in Hungary.