Cathay Pacific Asia Miles - CX J Fare from Korea

I have been searching for some J fares from Korea to SIN, however, they have only 15 Days tickets available. Does anyone know whether J promo fares with longer validity is available in Korea? Where can I buy them (best is online)?

I am not sure if there are specific promo fares, but if you are read and understand Korean (and also have Korean credit card and bank account), you can check following sites:

www.onlinetour.co.kr
www.nextour.co.kr
www.tourexpress.co.kr

all of these should offer business class fares (in KRW) that has different stay limits.

According to the Korea CX fare sheet, the only discount fare is the 15 day fare.

Otherwise, it's the published fare, booked in J.

Need Korean account and cards? Gosh... i don't have one... haha