In 2457 (1914) This area was a sub-district, Mae Sai, Mae CHAN, Chiang Rai until 2481 (1938) has been raised as a King Amphoe Mae Sai, Mae Chan and dependent has been raised as an Amphoe Mae Sai.
In the year 2457 this area was placed into a district of Mae Sai, Mae Chan District, Chiang Rai Province until the year 2481 has been cited as a sub-district of Mae Sai. Up to Mae Chan And has been cited as a Mae Sai.
The 2457 this area are a Sai, MAE Chan District, Chiang Rai Province, until the year 2481 has been upgraded to be Amphoe Mae sai With the MAE Chan District, and has been raised as Mae Sai District.