Containers are being unloaded at a port in Busan, 325 kilometers south of Seoul, in this Nov. 21 photo. Yonhap

Korea's economy grew 0.3 percent in the third quarter of this year despite rising interest rates and weak exports, unchanged from an earlier estimate, central bank data showed Thursday.

The country's real gross domestic product (GDP), a key measure of economic growth, increased by 0.3 percent in the July-September from the previous quarter, according to the data from the Bank of Korea (BOK).

The third-quarter GDP growth marks a slowdown from the 0.7 percent expansion in the second quarter but is faster than the 0.2 percent growth a year ago.

Private consumption increased by 1.7 percent, as expenditures on semi-durable goods and services, such as spending in restaurants and accommodations, increased.