Suengchitthawon, from Suphan Buri in Thailand, spent seven years with local team Neunkirch, signing for the Foxes in September 2020, having played for Nancy's youth system and the France national youth team.
The creative midfielder, 23, scored four times in 13 Premier League 2 Division 1 appearances during his first season in England, also adding a further two goals in four Papa Johns Trophy matches against senior opposition.
He was also named on the bench by Brendan Rodgers for two consecutive Premier League fixtures against Manchester City and West Ham United in April 2021.
The following season became disrupted by injury and national team selection, but the youngster did manage 16 PL2 outings, scoring and assisting once, while also playing in every Papa Johns Trophy group game.
Unfortunately, a cruciate ligament rupture has put pay to any involvement in the 2022/23 campaign to date.
On the international stage, Suengchitthawon has nine senior caps for Thailand, with his first coming in May 2021 against Tajikistan.