Mr. Mohammathnasiet Sales was born and raised in a struggling family. His father became disabled when he was 7 years old and he endured a great deal of hardship in his teens but never gave up on fighting for his further education. His life has since evolved for the better and every day as he sharpens his knowledge. He strongly believes in education as it was the main tool which transformed him into who he is today.

He joined Aii Language Center July 08, 2019 as a part-time teacher. Prior to working as a teacher at Aii, he taught English to students for approximately 4 years.  Later, he became a full-time teacher at Aii Phsar Thmey Campus where he learnt and was exposed so much to Aii culture, system.At Aii, he had an opportunity to flourish and develop professionally in terms of his teaching career. In term 73, he was promoted to ESL Head Teacher at Mao Tse Tong Campus.

He attended the Institute of Foreign Languages (IFL) and chose a Bachelor of Education as his major and achieved a high grade on his teaching practicum.