You may ask yourselves why the Korean President is visiting Greenland of all places.
As so often before, this is about money.
China has de facto monopoly on mining particular kinds of rare soil that are used as a key part in electronics, windmills and electric cars. It so happens these minerals also exist in Greenland.
EU (with Denmark) has signed an agreement ensuring that the mining of these minerals does not end up under the control of China, that should help lowering the prices on the world market.
China has indeed shown interest!
From an economic point of view that could mean money to Greenland. The surplus Greenland generates will be deducted from the money send from DK to Greenland.
When and if the surplus exceeds the amount Greenland recieve from DK, then there will be a new negotiation in regards as to how to split the money. With a population of 60.000, of which up to a fifth are Danes, the Greenlanders themselves are not enough with know how, talent and education to control what is going on. They simply risk being sidelined.
From a protocol view: Normally the Korean head of state would drop by to say hello to the Danish head of state, i.e. Queen Margrethe. But Greenland is autonomous (*) and this is a visit to Greenland. Greenlands head of state is also QMII, but she is far away, so she has sent a representative, Frederik.
Who is very popular in Greenland, and therefore a welcome representative from them as well, but he has also developed a personal friendship with the Korean President, so.....
(*) Foreign policy and security, i.e. police and military is under the control of DK.
I don't have a beer gut. I have protective covering for my rock hard abs.