Dear Peerapon,
It is a bit late to add the standards as scope extensions, such requests shall be made three months in advance. However, you made the request May 2015, and if you have the test equipment requested by the technical experts and test report, you can always ask the lead assessor if he is kind enough to include the standards in the assessment.
I do, however, believe that you have to add the standards in Annex 1B in OD-2005 and send an updated OD-2005 to me to be sent to the IECEE Secretariat.