Korea’s internet-only banks and regional lenders are expanding their co-lending partnerships beyond consumer credit into corporate lending, as they each look for new ways to grow their businesses, industry officials said Monday. KakaoBank and Busan Bank are preparing to launch a joint lending program for small and medium-sized businesses and sole proprietors, following a memorandum of understanding signed in April. The arrangement will combine KakaoBank’s nationwide digital platform with Busan Bank’s experience in assessing and managing business loans in its regional market. Until now, most co-lending partnerships between the two parties have focused on consumer credit. Toss Bank and Kwangju Bank introduced the industry’s first joint loan in 2024, followed by similar offerings from Kbank and Busan Bank, and from KakaoBank and Jeonbuk Bank in 2025. All three programs targeted salaried workers. Their expansion into business lending marks the next step. The incentives for both sides are clear. For internet-only banks, which have relied heavily on household lending, working with regio