This is the 10034th most frequent Korean word.
공정위에
The Korean word "공정위에" refers to "on the Fair Trade Commission" or "related to the Fair Trade Commission."
Here, '공정위에' denotes the direction to which the action of submitting (제출하다) is happening. The context shows it is a location-related usage implying the Fair Trade Commission.
그는 공정위에 보고서를 제출했습니다.
He submitted a report to the Fair Trade Commission.
In this sentence, '공정위에 의해' is used to indicate agency, meaning the action of deciding the regulations is performed by the Fair Trade Commission.
공정위에 의해 결정된 법규를 준수해야 합니다.
We must comply with the regulations decided by the Fair Trade Commission.
Here, '공정위에서의' implies association, highlighting that the policies are from or related to the Fair Trade Commission.