I thank all the members who have shared their knowledge. Does any one know how soon after landing one can apply for extension? Whether extension can be sought
say 2 to 3 days after arrival?

My business visa is issued on 18/11/2015 and expires on 18/02/2016.I shall be travelling to PP in the first week of Feb 2016.I shall be staying for a week only.
Can I extend the visa for one year before i leave?

I have Cambodia business visa valid for 3 months. Whether this can be extended for one year after a short stay of 10 days?