Thai Koon was named after the Thai Koon Steel Company, as the late owner, Khun U-Rai, provided the funds for her rescue from Tak Province near the border of Myanmar, known for its logging activity. Her left front foot was injured in a landmine explosion, leaving her with a permanent disability and making walking difficult for her. Thai Koon was rescued and brought to Elephant Nature Park in May 2014. After being welcomed by the herd, she took her time to introduce herself to all the other elephants. She eventually found friendship with Tilly and Kham Puan.