Vancouver-based quantum technology company BTQ Technologies Corp. (Nasdaq: BTQ) has been selected as the core post-quantum cryptography security provider for South Korea’s first bank-led Korean won stablecoin proof-of-concept, in a three-way partnership with Korean fintech firm Finger Inc. and iM Bank, a Daegu-based commercial bank under DGB Financial Group.
The announcement confirms BTQ will supply its Quantum Secure Stablecoin Settlement Network (QSSN) as the post-quantum cryptography (PQC) security architecture for the pilot, with BTQ also providing strategic advisory support and coordinating implementation across the three-party arrangement.
For BTQ, the deal is a meaningful commercial validation of QSSN as production-ready infrastructure. For iM Bank and Finger, it’s a structural commitment to building post-quantum security into Korean digital money rails before “Q-Day”—the still-undefined moment when cryptographically relevant quantum computers can break the elliptic-curve signatures securing Bitcoin, Ethereum, and most current stablecoins. For Kaia, it’s the most significant institutional commercial signal in months — and it lands at a critical moment.
What’s in the Pilot
Per BTQ’s announcement, the proof-of-concept will validate four core components:
- Real-time reconciliation between bank reserves and blockchain-issued stablecoin supply
- A global-standard smart contract architecture for the won-stablecoin
- Connectivity to global infrastructure for overseas distribution
- A PQC-based dual-signature security structure layering NIST-standardized ML-DSA signatures alongside existing ECDSA cryptography
The dual-signature design is the technically distinctive piece. By running ECDSA and PQC signatures in parallel, the system addresses what the cybersecurity community calls the Harvest-Now-Decrypt-Later threat — the concern that adversaries are already collecting encrypted financial data today, intending to decrypt it once sufficiently powerful quantum computers exist. Critically, the dual-stack architecture allows institutions to start the transition without disrupting existing operational workflows or breaking compatibility with legacy systems.
Olivier Roussy Newton, BTQ’s CEO, framed the announcement around coordination rather than just technology: “Post-quantum migration requires more than a cryptographic upgrade. It requires coordination across infrastructure, implementation, and institutional stakeholders. In this initiative, BTQ is providing both strategic advisory support and QSSN as the post-quantum security architecture, while helping lead coordination across the three-way partnership.”
QSSN was previously highlighted in the U.S. Post-Quantum Financial Infrastructure Framework (PQFIF) as a model architecture for post-quantum digital money infrastructure, and BTQ has positioned the platform as aligned with emerging standards from the QuINSA (Quantum Industry Network for Standards and Adoption).
Kaia Losing Major Korean Banks
The announcement is a meaningful win for Kaia, the Layer 1 blockchain created from the 2024 merger of Klaytn (originally developed by Kakao) and Finschia (LINE’s blockchain). But the broader market context is sharper than the BTQ-iM Bank framing alone suggests.
Per Bloomingbit’s reporting earlier today, major South Korean financial institutions have been systematically choosing non-Kaia Layer 1s for their stablecoin and Web3 infrastructure decisions over the past several weeks:
- Shinhan Card signed an MoU with the Solana Foundation (the second major Korean institutional Solana partnership in a week alongside K Wave Media’s RWA tokenization deal).
- Fashion Group Hyungji partnered with Offchain Labs to build payment infrastructure on Arbitrum across 2,000+ stores in South Korea and Singapore.
- Woori Bank completed its proof-of-concept with BDACS for KRW1, a won-denominated stablecoin built on Avalanche.
- Kakao Pay, a member of Kaia’s own Governance Council, is reportedly exploring the Maru project led by Hashed as an alternative consortium model.
The market signals are equally pointed: Kaia’s total value locked has fallen to approximately $12.5 million as of May 2026, down from $104.37 million in August 2025. KAIA token traded at 69 won on Coinone, down approximately 98% from its 5,049 won pre-merger peak in April 2021.
Against that backdrop, the iM Bank–Finger–BTQ proof-of-concept is the counter-narrative Kaia needs—not from one of Korea’s largest commercial banks, but from a regional bank affiliated with DGB Financial Group, paired with a fintech (Finger) that BTQ has been working with since at least October 2025.
Why iM Bank, Not the Eight-Bank Consortium
The Korean stablecoin race is genuinely fragmented. As TCT reported in June 2025, the headline effort is the eight-bank consortium—KB Kookmin, Shinhan, Woori, Nonghyup, IBK, Suhyup, Citibank Korea, and SC First Bank—preparing a joint won-stablecoin issuance vehicle. KB Kookmin alone has filed 17 stablecoin trademark applications, including KBKRW and KRWKB.
But that single-consortium vision has fragmented into several sub-consortia, and iM Bank sits in a different one. Per market reporting, Hana Financial Group, BNK Financial, iM Bank, and SC First Bank have formed a separate KRW stablecoin consortium track—making iM Bank’s BTQ-QSSN partnership a distinct architectural commitment from whatever the eight-bank consortium ultimately deploys.
This matters editorially. The BTQ press release frames this as “South Korea’s first bank-led KRW stablecoin PoC,” and the framing is technically defensible—it’s the first PoC using post-quantum cryptography on Korean banking infrastructure. But it’s not the only Korean bank stablecoin PoC, and other tracks are choosing different blockchain layers and security models.
The PoC’s Provenance: October 2025 Foundations
The iM Bank announcement is also not a starting point—it’s an extension of relationships BTQ has been building in Korea since at least 2025.
Per BTQ’s prior disclosures, Finger Inc. joined Danal as an early participant in BTQ’s QSSN pilot program in October 2025, with the initiative described as progressing from proof-of-concept toward commercialization under QuINSA-aligned guidelines and PQFIF frameworks. The May 6 announcement therefore represents the iM Bank addition to a partnership architecture BTQ and Finger have been jointly developing for at least seven months.
That progression matters because it suggests the BTQ–Finger relationship is producing actual institutional sales—first Danal, now iM Bank—rather than remaining a single pilot. For BTQ shareholders, that’s the operational evidence the company needs to demonstrate QSSN is moving from research-stage validation toward enterprise contracts.
The Quantum Backdrop
The announcement lands within a steadily intensifying institutional conversation around post-quantum security in financial infrastructure. As TCT covered most recently in an exclusive Coinbase statement, Coinbase confirmed it is running a “comprehensive internal effort” to prepare its infrastructure for a post-quantum world, with institutional clients having shifted in the past 12 months from asking “is this real?” to asking “how is responsibility divided?” between protocols, custodians, and clients.
The same shift is now visibly occurring at the central-bank-adjacent level in Korea. The Bank of Korea previously included Klaytn in its CBDC pilot ecosystem and continues advancing CBDC testing through initiatives such as Project Hangang. The iM Bank PoC sits alongside that broader Korean digital money infrastructure development—but with the added differentiation of being the first publicly disclosed Korean stablecoin PoC explicitly built on a post-quantum security foundation.
For competing Korean stablecoin tracks (KakaoBank, the eight-bank consortium, and BDACS KRW1 on Avalanche), the iM Bank announcement raises a question: do other Korean stablecoin issuers also need to commit to post-quantum security from day one, or does the dual-signature architecture become the default standard once BTQ’s PoC proves operationally viable?
Also Read: Korea Exchange Eyes Crypto Derivatives to Turn Busan Into Global Trading Hub
