Create a member card by registering your passport before start purchasing. A duty free goods that can be refunded at the airport.Most international brands available here.Chinese tourists shopping stop
If you want to buy alcohol duty free for international flights come here before hand so you can pack in your checked bag. But be aware that Thai law mandates that you can buy alcohol after 5pm only.
If you like to shop in duty free it's one of the biggest malls devoted to doing just that. Prices seem to be a bit cheaper. Chinese and Korean shopping militias out in force!
This is one huge Duty Free complex. Located so conveniently next to the Pullman Bangkok King Power. Your go to place in Bangkok to purchase luxury goods, beauty or tech gadgets.