Gradually, he began to enjoy playing football as a sport and soon had the desire to improve.

After outclassing his age group, Nattawut joined the JMG Academy and later attended the Bangkok Christian College, where he was called up to the Thailand Under-16's.

[1] After winning the 2011 AFF U-16 Youth Championship with the Thailand Under-16's, he was handed a trial by Buriram United, who scouted him at the tournament.

[1] They signed him, and he was invited along with seven other Thai players to train for six months at Premier League club Leicester City's Academy.

[1] Afterwards, the forward was loaned to Thai third division side Surin City where he scored 5 goals in 14 outings.