You can increase its interest rate if you make these transactions

Condition	Additional rate	Applied until expiry
Agree to receive Hana Money rewards for the interest of this account instead of cash.	1.6 %	Yes
Sign up for smartphone banking (For those customers agreed to receive Hana Money for the interest)	0.2 %	Yes
Total (The sum of preferential and basic rates can't exceed the account's maximum interest rate)	1.8 %