Dunamu, Hana Financial Take Blockchain Remittance System Live With POSCO

VADODARA, April 29, 2026. The following report is based on currently available verified source material and market data.

Hook paragraph

Dunamu, Hana Financial Take Blockchain Remittance System Live With POSCO developed into a market-moving story within the reported window. The initial source indicates immediate relevance for crypto sentiment, while fuller validation is still tied to cited datasets and official statements.

Dunamu, Hana Financial, and POSCO Launch Blockchain Remittance System

Data Summary

The blockchain remittance system uses Dunamu's proprietary GIWA Chain to replace SWIFT's messaging network. The PoC demonstrated reduced settlement times and costs compared to traditional methods. POSCO International recently issued blockchain-based foreign currency digital bonds worth approximately 140 billion won (about $95 million) with HSBC. As of the latest data, global crypto sentiment is at "Fear" (Score: 26/100), with Bitcoin trading at $77,622 (up 1.83% in 24 hours). Source: CoinGecko.

Why It Matters

Why now? Traditional cross-border payments via SWIFT involve separate steps for sending payment instructions and moving money, causing delays and higher costs. The blockchain system combines both into a single real-time process, making transfers faster and cheaper. This live deployment with a major conglomerate like POSCO validates the technology for enterprise use.

Who benefits? POSCO International gains faster, cheaper trade settlements. Hana Financial expands its digital finance offerings. Dunamu demonstrates GIWA Chain's utility beyond crypto trading. Retail and institutional users may eventually benefit from lower remittance fees.

Time horizons: Short-term (months): The three companies plan to establish a working model for real-time blockchain remittances before end of 2026. Long-term (years): If successful, this could accelerate adoption of blockchain for cross-border payments across Asia and beyond.

Causal chain: PoC success → MoU signing → live trade transactions → reduced settlement times/costs → increased efficiency → potential broader adoption → positive sentiment for blockchain payments.

Mechanism Breakdown

Under the deal, POSCO International's trading arm handles business application using real transaction flows. Hana Financial manages remittance processing, fund settlement, and foreign exchange. Dunamu provides blockchain infrastructure via GIWA Chain and maintains the transaction record. The system eliminates the SWIFT intermediary by combining payment instruction and fund transfer into a single on-chain step, enabling real-time settlement and lower costs.

Industry Comparison

This development aligns with broader trends in blockchain-based payments. South Korean internet-only bank Kbank has partnered with Ripple to test cross-border remittances. POSCO International's earlier moves include a blockchain-based global payment system with JP Morgan and digital bond issuance with HSBC. Compared to Ripple's XRP-based solutions, Dunamu's GIWA Chain is a private blockchain tailored for enterprise use, similar to consortia like we.trade or Marco Polo.

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Risks & Counterpoints

While the MoU is a positive step, several risks remain:

• Scalability: The system is currently limited to POSCO International's trade flows. Scaling to multiple enterprises may face technical and regulatory hurdles.
• Regulatory uncertainty: South Korea's crypto regulations are evolving. Changes could impact the use of blockchain for remittances.
• Competition: SWIFT is also modernizing with its own instant payment initiatives. Blockchain solutions must prove superior in cost and speed at scale.

Future Implications

If the live test succeeds, the consortium may expand to other companies, potentially creating a blockchain-based remittance network in South Korea. This could reduce reliance on SWIFT and lower costs for international trade. The success may also boost adoption of Dunamu's GIWA Chain for other financial applications.

Background

Dunamu is best known for operating Upbit, one of the largest crypto exchanges in South Korea. Hana Financial Group is a major financial conglomerate. POSCO International is the trading arm of POSCO, a global steelmaker. The PoC earlier this year demonstrated the technical feasibility of using blockchain for remittances.

Related Developments

South Korea is actively exploring blockchain for government and financial use. The country recently piloted tokenized deposits for government spending. Other initiatives include Kbank's partnership with Ripple for cross-border remittances.

Conclusion

The live deployment of a blockchain remittance system by Dunamu, Hana Financial, and POSCO International marks a concrete step toward modernizing cross-border payments. If successful, it could pave the way for broader enterprise adoption of blockchain in trade finance.

Frequently Asked Questions

Q1: What is GIWA Chain?

GIWA Chain is Dunamu's proprietary blockchain platform used for the remittance system.

Q2: How does this differ from SWIFT?

SWIFT separates payment instruction and fund transfer, causing delays. The blockchain system combines both into a single real-time process.

Q3: When will the system be fully operational?

The companies plan to establish a working model before the end of 2026.

Q4: Is this only for POSCO International?

Initially yes, but the consortium may expand to other companies.

Q5: What is the value of the digital bonds issued by POSCO?

Approximately 140 billion won (about $95 million).

Traders and analysts are watching for the working model launch before year-end and potential expansion to other South Korean enterprises.

What to watch next: The agreement, signed Tuesday at Hana Financial Group's Seoul headquarters, follows a successful proof-of-concept (PoC) completed earlier this year by Hana and Dunamu, which showed that blockchain could reduce settlement times and costs compared to the traditional SWIFT framework.; exchange-level volume and liquidity data.