South Korea's Lee Soomin earned his first European Tour title after sealing a wire-to-wire victory at the weather-hit Shenzhen International on Monday.
After poor weather forced the players to return to the Genzon Golf Club for a fifth day, fog caused further delays but once play began, it was Lee who showed his class.
The 22-year-old returned to the Genzon Golf Club tied for top spot with Alexander Levy and Lee Slattery on 14-under-par with five holes to play and got his nose in front with a birdie on 16 and an eagle at the par-five 17th.
A bogey at the last did not prove costly as Lee finished with a 16-under 272, two strokes ahead of Joost Luiten and Brandon Stone, with Slattery and Levy a shot further back along with Scott Hend.
Ireland’s Paul Dunne fell away on the final round after three good days, when his four over par left him four-under for the tournament, tied for 31st position.
Lee, who squandered a three-shot lead in the final round of the Maybank Championship Malaysia in February after falling apart down the stretch, said he had managed to keep his nerves in check this time.
"I got a big chance in Malaysia but I didn't make it because I was really, really nervous. Now I made it," he said.
"Yesterday I was really, really nervous. We had a lot of break times and then played again so that's really good for me and I just thought about my golf and then competed until I could do it."
Along with a cheque for more than €400,000, Lee, who was playing the tournament on a sponsor's invitation, also gains a European Tour exemption through to the end of the 2018 season.
When play eventually got under way on Monday, Stone was the first of the contenders to make a move with a birdie on the 15th allowing him to join those on 14 under, but Slattery made a bogey to drop back.
Luiten found the hole from ten feet on the 18th to sign for a 68, leaving him at 14 under, but Lee responded with a birdie on the 16th to take the lead.
Then, on the par five 17th hole he had double-bogeyed in the third round, Lee made the green in two and sank the eagle putt for a three-shot lead.
Levy found the water to bogey the same hole, giving Lee breathing space to get away with a bogey on the last.