She was crowned the inaugural runner-up titleholder of Miss Cosmo 2024 held in Ho Chi Minh City, Vietnam on October 5, 2024.
She also won the title of 2nd Runner-up at Miss Universe Thailand 2024 and Top 20 Miss Grand Thailand 2023.
[1][2][3][4][5][6][7][8][9][10] Karnruethai Tassabut was born and raised in Ubon Ratchathani, Thailand.
She worked as a beauty consultant and cabin crew member for a Middle Eastern airline for 4 years.
She graduated from the Faculty of Arts at Silpakorn University.