The MoT stated that according to the law foreign nationals are not authorized to be tour guides. However, due to the increase of Korean tourists and the lack of Korean-speaking tour guides, the MoT has allowed Korean tour guides to operate in Cambodia for a temporary period. Students will speak Korean by the end of 2009.
Btw: There is a lack of a lot of foreign language speaking guides right now. And as far as I know, the Koreans have their won hotels, their own bus companies, even thei won restaurants. The guides were the only possibility to left some money in the country..