South Korean fintech firms Kakao Pay and KakaoBank have signed a memorandum of understanding (MoU) with digital-asset infrastructure provider Fireblocks to explore stablecoin and other digital-asset infrastructure, as the country continues to develop its regulatory framework for the sector.

Kakao Pay is the payments affiliate of South Korean internet giant Kakao, while KakaoBank, its internet-only banking arm, ranks among the country's largest neobanks. Kakao also operates KakaoTalk, South Korea's dominant mobile messaging platform.

The agreement comes roughly two months after Kakao Group signed a strategic memorandum of understanding with Circle Internet Group, Inc., a leading global fintech company and the issuer of the USDC stablecoin, to cooperate in the fields of on-chain payment infrastructure, including Korean Won stablecoins, and digital-asset technology. Taken together, the two agreements connect Kakao with a stablecoin issuer on one side and an institutional infrastructure provider on the other, covering both the assets themselves and the systems required to move, hold and manage them.

Under the new MoU, the companies will conduct proof-of-concept tests and assess infrastructure suited to South Korea's regulatory, security and service requirements, with the aim of establishing secure on-chain infrastructure for the country's emerging digital-asset market. No launch date, investment amount or implementation timetable has been disclosed, leaving the initiative at an exploratory stage.

The partnership brings together Kakao Pay's payments network, KakaoBank's banking operations and Fireblocks' institutional digital-asset infrastructure. According to Fireblocks, its technology is used by more than 2,500 institutions globally, including more than 100 banks.

The move comes as South Korean financial firms increasingly test Won-denominated stablecoins and blockchain-based payment infrastructure. Kakao Pay had already completed a proof of concept for a digital-asset wallet supporting stablecoin transfers, payments and settlement, and has since extended testing to KakaoBank. The Fireblocks agreement adds an external infrastructure specialist to that in-house work.

Fireblocks, which is headquartered in New York, provides infrastructure for moving, holding and managing stablecoins, including wallet controls, transaction workflows and compliance tools.

The latest agreement therefore points to a focus beyond issuing a stablecoin itself: building the banking, payments and compliance infrastructure needed to distribute and settle digital assets at scale in South Korea. With no timetable disclosed, the near-term markers will be the results of the proof-of-concept tests and South Korea's regulatory and security requirements for digital-asset infrastructure take shape — the parameters the partners have committed to assessing under the MoU.