Dear Khun Piyanuch,
Thank you for your quotation. We wish to add up some more rooms to the molds treatment and send this information to Helsinki for final approval so quotation and email must be in English as per our phone discussion earlier ka.
Additional rooms to do treatment: 4) Reception room
Please also provide your previous jobs references (such as the work with other embassies for our considerations)
Your soonest response will be highly appreciated.