irb.com and James Mortimer 21.May.2013Getty Images
The Koreans, who climb above Belgium and Chile, now occupy their highest position since April 2010 and know that a repeat performance in 12 months time will see them represent Asia in the Répechage for the final place at Rugby World Cup 2015.
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Hong Kong remain 29th despite the defeat in Ansan, but their cushion of Moldova below them has now been reduced to under a rating point. They finished third in the Top 5 despite not having their Sevens players available throughout the competition.
The other Asian 5 Nations match over the weekend did not have any impact on the world rankings as a result of the 39 places and 14.09 rating points separating the Philippines from the United Arab Emirates, the side they beat 24-8 to secure their Top 5 status for next year.
Guyana were the other side on the move in the rankings, climbing one place to 58th on the back of a tight 19-17 win over Barbados in the NACRA (North American Caribbean Rugby Association) Championship., swapping places with Colombia.
The defeat was a costly one for Barbados as they fall four places to 71st with India, China, the Solomon Island and Andorra the beneficiaries.