Wooricard(우리카드) is a Korean card company owned by Wooribank(우리은행).
The main features of their card products are complicated spending rules, a small reward amount and minimum spending amount requirement on each purchase(10,000 KRW). Their card products are not good for customers who spend a small amount of money on each purchase. All of Woori cards are BC cards.
You can use your Wooricard to recharge your T-Money in GS25.
You can't own more than 10 active credit/check cards in Woori card.
For more detail about credit card eligibility and required documents,
click here.