This is the 7774th most frequent Korean word.
한국항공우주산업
Korea Aerospace Industries (KAI).
In this sentence, 한국항공우주산업 is used as the subject, a noun referring to the aerospace corporation in Korea.
한국항공우주산업은 세계적인 항공기 제조 회사입니다.
Korea Aerospace Industries is a global airplane manufacturing company.
Here, 한국항공우주산업 possesses the factory (공장), showing a genitive relation in the sentence.
저는 지난주에 한국항공우주산업의 공장을 견학했습니다.
Last week, I toured Korea Aerospace Industries' factory.
In this case, 한국항공우주산업 is the location where the dream activity (working) is intended.