Biw Nantapak Kraiha is the official representative of Thailand in Miss United Continents 2018. As Miss United Continents Thailand 2018, Biw is competing against thirty-two delegates from all over the world to win the coveted international title.
At Miss Grand Thailand 2018 held on 14th July 2018, she was awarded the place of third runner-up where she represented Buriram. From Suphan Buri, Biw currently does Film Studies at Suan Sunandha Rajabhat University.