This would be bold of South Korea to send troops to Ukraine when even the U.S. hasn’t officially sent any American troops to Ukraine yet:
South Korea is considering sending a team of personnel to Ukraine to monitor North Korean troops being deployed to support Russia, a government source said Tuesday.
Last week, Seoul’s spy agency said North Korea sent some 1,500 special forces to Russia this month to take part in the war in Ukraine. The North is expected to dispatch a total of 12,000 troops from an elite special forces unit, according to an intelligence source.
“There is a possibility that personnel will be sent to Ukraine to monitor the tactics and combat capabilities of North Korean special forces dispatched in support of Russia,” the source said.
If deployed, the team is expected to be composed of military personnel from intelligence units, who could analyze North Korean battlefield tactics or take part in interrogations of captured North Koreans.
You can read more at the link, but the ROK sending Ukraine artillery shells seems to clearly be on the table now as well.