KPN Group Corporation Limited is a prominent Thai conglomerate with diversified interests spanning real estate, music and education, and private investments. Established in 1992 by Dr. Kasem and Khunying Phornthip Narongdej, the company has evolved from its origins in the automotive manufacturing sector to become a significant player in Thailand's property development industry. Notably, KPN Group developed The Diplomat Sathorn, a luxury condominium situated in Bangkok's central business district.