Korean phrase
제안 유효기간은 ~까지예요. che an yu hyo gi ga neun ~ kka ji ye yo
Meaning
The proposal is valid through ___
When to use it
This states the date until which a proposal remains valid. It is a polite, straightforward way to give a proposal's expiration date in business communication.
Example dialogue
이 제안 언제까지 유효해요? i che an eon je kka ji yu hyo hae yo
How long is this proposal valid for?
제안 유효기간은 8월 31일 까지예요. che an yu hyo gi ga neun 8 wol 31 il kka ji ye yo
The proposal is valid through August 31.