Komgrich Nantapech (), also better known as Eaktwan BTU Ruawaiking (à ¹Âà ¸Âà ¸Âà ¸Âà ¸°à ¸§à ¸±à ¸ à ¸Âà ¸µà ¸Âà ¸µà ¸¢à ¸¹à ¹Âà ¸£à ¸·à ¸Âà ¹Âà ¸§à ¸Âà ¸´à ¹Âà ¸Â) or Ektawan Mor Krungthep Thonburi (à ¹Âà ¸Âà ¸Âà ¸Âà ¸°à ¸§à ¸±à ¸ à ¸¡.à ¸Âà ¸£à ¸¸à ¸Âà ¹Âà ¸Âà ¸Âà ¸Âà ¸Âà ¸Âà ¸¸à ¸£à ¸µ; born July 24, 1989), is a Thai professional boxer who challenged for the IBF flyweight title in 2017.
Eaktawan was a Muay Thai fighter under the name Tawanrung Ueasamphan at first. He moved to boxing full time in 2013. A former Thai Flyweight champion and the current IBF Pan-Pacific flyweight champion, on April 29, 2017, Nantapech was the #4 IBF Flyweight, he challenged the #3 Donnie Nietes for the vacant IBF World Title vacated by then Champion Johnriel Casimero.
His ring name "Eaktawan" (lit. Solitary Sun) comes from his manager Ekarat and his supporter Ekachai Leuang Sa-Ard, he studied at the Faculty of Political Science, Bangkokthonburi University.