Original sentence: Samsung Engineering & Construction (Hangul: 삼성건설 Hanja: 三星建設) is one of the world's leading construction companies founded and established in 1977, headquartered in Seongnam, South Korea and part of Samsung Group
Edited sentence: Samsung Engineering & Construction (Hangul: 삼성건설 Hanja: 三星建設) is  established in 1977, headquartered in Seongnam, South Korea and part of Samsung Group