At the beginning of the reign King Chulalongkorn King Rama v depends on Koh Samui, Nakhon SI thammarat. Later, when the Government held country-2440 (1897) new. Amphoe Koh Samui is located. Koh Samui first yakhon Sheriff is Charoen rat loyal Prince (sing Andrea Rak) and 2540 (1997) Koh Samui has 100 years of age in the various activities organized to celebrate this occasion.