The Siam Photon Project is a project conducted by the National Synchrotron Research Center (NSRC) of Thailand to construct a synchrotron radiation facility at Nackhon Ratchasima in Thailand, which is based upon the accelerator system donated by SORTEC Corporation in Japan. The project began in 1996 and it was practically directed by Professor Takehiko Ishii till 2005. This article describes, from a view point of a Japanese accelerator physicist, when and how the SORTEC accelerator system was dismantled and transported from Japan to Thailand, the building of the Siam Photon Laboratory was constructed, the Siam Photon Source was assembled and commissioned, and performance of the accelerator system was improved in these 10 years.
