The other medals were won by Switzerland, in second, at eight under 568 shots and Ireland, in third, at seven under 569 shots.

In 14 World Championships, the Koreans have now taken seven medals in total, including four gold, two silvers and one bronze.

Teenagers Hye Jin Choi and Min Ji Park each shot a five under-par 67 today to post a final-round 134, which is second-best to Australia’s 131 in 2014.

The Korean duo and Japan’s Nasa Hatoaka shared the day’s lowest individual rounds.

"The key is the team play," said South Korean captain Sang-Won Ko.

"We have been interviewed over the last few days and the players have been so focused on team play.

"That makes everyone tight and makes for good results."

South Korea’s 21-stroke margin of victory over second-place Switzerland tied the Championship record set by the United States at Santiago in Chile in 1998.

After three rounds, the Koreans held a 14-stroke cushion over Switzerland but extended that lead once more in the fourth and final round.

"It’s a great historic moment for Switzerland," said Swiss captain Annette Weber.

"The players performed great in very hot conditions and I am very proud of this team for winning the silver medal."

In a tightly contested affair that lasted most of the afternoon, Ireland claimed third on a total of 569 shots, edging past Denmark in fourth with 570 shots and Thailand in fifth on 571 shots.

"I’m just so proud of them," said Irish captain David Kearney.

"They are all very serious about their golf and they work incredibly hard all year round when they are not at tournaments."

The US, with a pair of 69s from Andrea Lee and Katelyn Dambaugh finished in sixth with 574, followed by Spain in seventh, Japan in eighth, Canada in ninth and host Mexico in tenth.