Hana, POSCO and Dunamu Launch Blockchain Trade Payments Pilot to Challenge SWIFT

South Korea’s Hana Financial Group, POSCO International, and Dunamu are moving blockchain payments from theory to live trade flows, with a pilot that could make cross-border settlement faster, cheaper, and a lot less painful than the old SWIFT grind.

• Hana, POSCO, and Dunamu signed a trilateral blockchain payment agreement
• Real trade transactions will be used, not just test data
• GIWA Chain will power the blockchain remittance system
• The goal is to merge payment messaging and settlement into one real-time workflow
• Early testing reportedly showed faster settlement and lower costs than SWIFT

The agreement, signed at Hana Financial Group’s headquarters in Seoul, is more than a glossy fintech photo op. POSCO International will actually process cross-border fund flows through the system, Hana Financial Group will handle remittance processing, foreign exchange, and settlement operations, and Dunamu will provide the blockchain infrastructure through its GIWA Chain while maintaining transaction records.

Why this blockchain remittance pilot matters

The biggest difference here is simple: this is not a sandbox toy or a demo built on simulated transfers. The companies are using real trade transactions tied to actual business payments. That is where blockchain finance either proves it can do something useful or gets exposed as another overpromised pilot that looked slick in a slide deck and useless in production.

The system is designed to combine payment messaging and settlement into one real-time process. In plain English, that means the instructions for a payment and the actual transfer of value can be coordinated in a single workflow instead of bouncing through a maze of intermediaries, reconciliation steps, and time-zone delays. That is one reason traditional cross-border payments often feel like they were designed by a committee that hated efficiency.

SWIFT, the long-established international payment messaging network, is the obvious benchmark. SWIFT is not itself a settlement system, but it remains a core layer in global banking rails, connecting institutions across borders. The problem is that the old model usually involves multiple banks, correspondent banking relationships, and manual checks that can slow things down and add costs. If blockchain can reduce those bottlenecks, it is not just crypto evangelism — it is actual financial plumbing getting upgraded.

That said, let’s not pretend every blockchain pilot is a revolution. Plenty of them promise speed, transparency, and savings, then get tangled in compliance, integration headaches, and institutional inertia. Real-world blockchain use cases are only real if they survive the messiness of the real world.

How Hana, POSCO, and Dunamu split the work

Each company is bringing something different to the table, which is why this setup is worth watching.

POSCO International is not just lending its name. The trading arm will use the blockchain-based remittance system in live commercial flows, giving the pilot an industrial backbone. That matters because trade finance is one of the clearest use cases for blockchain-based finance: lots of paperwork, multiple parties, cross-border complexity, and a constant need for auditability.

Hana Financial Group is handling the banking side — remittance, foreign exchange, and settlement operations. That gives the pilot credibility. Banks are often the missing piece in crypto projects that want to leap straight to the finish line without building the rails underneath. Hana’s role suggests this is being treated as infrastructure, not a speculative side quest.

Dunamu, best known as the operator of Upbit, is supplying the blockchain layer through GIWA Chain, its proprietary blockchain network used to record and verify transactions. In this context, GIWA Chain is the system’s record-keeping and coordination layer, making the payment workflow visible and traceable across participants.

The earlier proof-of-concept reportedly showed faster settlement and lower transaction costs compared with SWIFT. Now the companies are pushing toward a working model by the end of the year. That is the right move. A proof-of-concept is nice; a live deployment with real money on the line is where the fiction ends and the usefulness begins.

“We have established a foundation for mid-to-long-term partnerships with leading domestic companies in the fields of digital finance and digital assets,” — POSCO International President Lee Gye-in

POSCO already has skin in the digital finance game

This is not POSCO International’s first swing at blockchain or digital finance. The company has already issued foreign currency digital bonds worth about 140 billion won, or roughly $95 million, in partnership with HSBC. It also previously launched a blockchain payment system with JPMorgan.

That track record matters. It suggests this partnership is not just a random corporate experiment from executives trying to sprinkle the word “blockchain” over a press release. POSCO appears to see digital settlement rails as a practical business tool, especially for international trade, where speed, transparency, and lower transaction costs can make a real difference.

For industrial and trading companies, that is the point. Cross-border settlement delays can tie up capital, complicate treasury operations, and create friction between commercial partners. If a blockchain-based remittance system can shorten those cycles, that is not hype — that is balance-sheet utility.

Can blockchain really challenge SWIFT?

Yes, but only in specific workflows, and only if the system actually works at scale.

SWIFT remains deeply embedded in global finance, and replacing it outright is not the game here. The more realistic outcome is narrower: blockchain systems can chip away at certain payment and settlement processes where speed, traceability, and cost efficiency matter most. That includes trade finance, remittances, and selected institutional transfers.

What makes blockchain attractive in this setting is the shared record. Instead of each party maintaining separate ledgers and then reconciling them later, the transaction history can be maintained in a more synchronized way. That can reduce disputes, lower reconciliation work, and improve settlement visibility. In the best-case scenario, it also cuts out some of the clunky middle layers that make cross-border finance such a bureaucratic slog.

But there is a catch: blockchain does not magically erase regulatory requirements, foreign exchange complexity, compliance checks, or the need for trust between institutions. It can streamline the rails, but it cannot repeal financial law. Anyone pretending otherwise is selling fairy dust with a token logo on it.

South Korea blockchain finance keeps pushing forward

This deal also reflects a broader trend in South Korea blockchain finance. The country has a mix of serious fintech ambition, deep industrial players, and regulators who are willing to move — slowly, carefully, and with a clipboard in hand.

That combination can be frustrating for crypto builders, but it also forces projects to mature. South Korea is not a market where companies can coast on jargon forever. If a blockchain remittance system cannot survive regulatory scrutiny and operational reality, it will get exposed fast.

That is why the move from proof-of-concept to real trade transactions is important. The pilot is no longer just about proving that a blockchain can record data. It is about whether blockchain-based finance can fit into the machinery of global commerce without making everyone’s life harder.

Regulatory pressure is still hanging over Dunamu

As promising as this partnership looks, Dunamu is not exactly operating in a clean regulatory halo. The company is under scrutiny over its planned stock swap with Naver Financial, and the process has already been delayed by pending approvals, major shareholding change reviews, and business combination reviews.

South Korea’s proposed Digital Asset Basic Act could also affect exchange ownership limits and merger structures. Dunamu CEO Oh Kyoung-suk has said that proposed shareholder caps could influence the company’s ownership model, even as Dunamu still plans to move forward.

That is a big deal. Corporate structure matters, especially for a crypto exchange operator trying to deepen ties with traditional finance. A blockchain infrastructure project can be technically sound and still get kneecapped by governance rules, ownership restrictions, or disclosure issues. The rails may be modern, but the paperwork is still a bureaucratic beast.

And that is the part many crypto fans hate hearing: good tech is not enough. The real world cares about regulation, ownership, disclosures, and institutional control. Annoying? Sure. Important? Absolutely.

Why this could be a blueprint — or just another pilot

The upside here is clear. If the system performs as promised, it could offer a practical model for blockchain payment infrastructure in trade settlement. Faster settlement, lower costs, and better visibility are not cosmetic improvements; they are the kind of gains banks and industrial firms notice very quickly.

The risk is just as clear. Pilot projects often look tidy until they hit scale. Then come the integration issues, compliance checks, exception handling, and corporate politics that turn elegant systems into expensive maintenance projects. Plenty of blockchain experiments have died not because the idea was bad, but because the execution hit the same brick wall every institutional project eventually meets: reality.

Still, the involvement of Hana, POSCO, and Dunamu makes this feel more serious than most of the usual “blockchain for enterprise” theater. This is real trade finance, real settlement operations, and a live commercial environment. That combination is exactly where blockchain either earns its keep or gets exposed.

Key questions and takeaways

What is being tested?
A blockchain-based remittance system for real cross-border trade transactions, with payment messaging and settlement handled in one workflow.

Who is involved?
Hana Financial Group, POSCO International, and Dunamu, the operator of Upbit and provider of GIWA Chain.

What is GIWA Chain?
It is Dunamu’s blockchain network, used here to record and verify transactions in the remittance pilot.

Why does this matter?
It could reduce settlement time and transaction costs in cross-border payments and trade finance compared with traditional SWIFT-based processes.

Is this just a test or something real?
It is being used with actual commercial trade flows, so this is closer to live infrastructure than a lab demo.

Does blockchain replace SWIFT here?
Not outright. The more realistic goal is to improve specific cross-border payment and settlement workflows where blockchain can be faster and more efficient.

What are the biggest risks?
Regulatory scrutiny, exchange ownership rules, merger approvals, and the fact that many pilots look better on paper than they do in production.

Why is Dunamu’s regulatory situation relevant?
Its planned stock swap with Naver Financial is delayed, and proposed crypto rules could affect ownership structure and corporate flexibility.

What does this signal for South Korea blockchain finance?
It shows that major institutions are starting to treat blockchain as financial infrastructure, not just a crypto trading novelty.

Can this scale beyond a pilot?
Maybe, but only if it proves reliable, cost-effective, and compliant enough for broader institutional use.

For now, the Hana Financial, POSCO International, and Dunamu partnership is a serious sign that blockchain-based finance is moving deeper into real commerce. Whether it becomes a template for broader adoption or another promising test case depends on execution, regulation, and whether the system can keep working once the spotlight fades.