Mr. Olivier Roussy Newton reports

BTQ TECHNOLOGIES' QSSN SELECTED AS CORE SECURITY INFRASTRUCTURE FOR SOUTH KOREA'S FIRST BANK-LED KRW STABLECOIN PROOF-OF-CONCEPT

BTQ Technologies Corp. has been selected as the core PQC security technology provider through its quantum secure stablecoin settlement network (QSSN) in a proof-of-concept with its Korean strategic partner, Finger Inc., and iM Bank, a leading Korean commercial bank, for South Korea's first bank-led Korean won stablecoin infrastructure incorporating postquantum cryptography (PQC).

BTQ provides strategic advisory support and QSSN as core PQC security infrastructure for the iM Bank initiative on the Kaia mainnet, advancing postquantum migration across global financial infrastructure.

• BTQ has been selected as the core postquantum cryptography security technology provider for South Korea's first bank-led KRW stablecoin proof-of-concept, delivering its quantum secure stablecoin settlement network (QSSN) for the initiative.
• BTQ is providing strategic advisory support and helping co-ordinate implementation across the partnership with iM Bank and Finger, supporting the integration of postquantum protections into regulated digital money infrastructure.
• Built on the Kaia mainnet, the proof of concept is connected to the blockchain ecosystems originally developed by Kakao and LINE, linking the initiative to two of the largest messaging and digital platform ecosystems in Korea and Japan.

The proof of concept represents more than a technical pilot. It marks an important step in bringing next-generation quantum security into banking infrastructure within Korea's regulated financial system. In addition to providing QSSN as the core PQC security framework, BTQ is contributing consulting and strategic co-ordination across the three-way partnership, helping align the project's security architecture, implementation approach and long-term post-quantum migration objectives.

"Postquantum migration requires more than a cryptographic upgrade. It requires co-ordination across infrastructure, implementation and institutional stakeholders," said Olivier Roussy Newton, chief executive officer of BTQ Technologies. "In this initiative, BTQ is providing both strategic advisory support and QSSN as the postquantum security architecture, while helping lead co-ordination across the three-way partnership. We believe this proof of concept demonstrates how financial institutions can begin integrating quantum-resilient protections into digital money systems in a practical and operationally viable way."

South Korea's first bank-led PQC stablecoin infrastructure initiative

BTQ is working alongside iM Bank and Finger on a three-way initiative to validate the issuance and distribution infrastructure for a Korean won stablecoin. In addition to supplying QSSN as the PQC security layer, BTQ is providing consulting support and helping to guide co-ordination across the partnership as the parties evaluate how to integrate postquantum protections into bank-led digital asset infrastructure.

The proof of concept will validate several key components, including real-time reconciliation between bank reserves and blockchain-issued supply, a global-standard smart contract architecture, connectivity to global infrastructure for overseas distribution and the integration of a PQC-based dual-signature security structure. By applying BTQ's PQC signature architecture alongside the existing ECDSA cryptographic framework, the system is designed to preserve operational continuity for financial institutions while pro-actively addressing future quantum computing threats.

Built on Kaia Mainnet

A notable feature of the proof-of-concept is that it will be implemented on the Kaia Mainnet, one of Korea's leading Layer 1 blockchain networks. Kaia was created through the merger of Klaytn, the blockchain originally developed by Kakao, and Finschia, the blockchain associated with LINE. Kakao and LINE sit at the centre of two of the largest messaging and digital platform ecosystems in Korea and Japan, respectively, making Kaia a significant piece of regional digital infrastructure.

Klaytn previously participated in the Bank of Korea's CBDC pilot ecosystem, and the Bank of Korea has continued to advance CBDC testing through initiatives such as Project Hangang.

By combining BTQ's PQC technology with blockchain infrastructure tied to the Kakao and LINE ecosystems, the proof of concept is intended to establish a model that aligns institutional-grade security, blockchain scalability and evolving regulatory requirements for digital money infrastructure.

QSSN as the security layer

The PQC security foundation for the initiative is BTQ's quantum secure stablecoin settlement network, or QSSN, a quantum-secure network architecture designed for stablecoin, tokenized deposit, payment and digital asset infrastructure. QSSN is designed to protect critical issuer functions, including stablecoin issuance, burning, transfer authority, upgrade control and administrative permissions, by integrating PQC-based signatures while maintaining existing user experience and operational workflows.

BTQ has previously announced that QSSN was highlighted in the U.S. Post-Quantum Financial Infrastructure Framework (PQFIF) as a model architecture for postquantum digital money infrastructure. The company has also positioned QSSN as a standards-oriented initiative advanced through QuINSA and aligned with emerging postquantum financial infrastructure requirements.

Addressing the harvest-now, decrypt-later risk

The timing of the proof of concept reflects the growing urgency surrounding the harvest-now, decrypt-later risk, in which attackers may collect encrypted financial data today and decrypt it later once sufficiently advanced quantum capabilities emerge. Global institutions are already accelerating postquantum migration. The U.S. National Institute of Standards and Technology (NIST) has finalized its first set of postquantum cryptography standards, including ML-DSA, ML-KEM and SLH-DSA, while major technology companies and financial institutions continue to define their own postquantum transition timelines.

BTQ's QSSN addresses this challenge through a dual-signature design that allows existing ECDSA-based infrastructure to operate in parallel with NIST-aligned PQC signatures such as ML-DSA. This approach enables banks and payment infrastructure providers to begin a phased transition toward quantum-safe security without disrupting existing systems.

Expanding BTQ's Korean ecosystem

BTQ continues to expand its Korean ecosystem across digital assets, payments, banking infrastructure and hardware-based security. In October, 2025, BTQ announced that Finger had joined Danal as an early participant in BTQ's QSSN pilot program, with the initiative expected to progress from proof of concept toward commercialization under QuINSA-aligned guidelines and broader industry frameworks such as PQFIF.

The commencement of the iM Bank proof of concept represents an important commercial signal for BTQ, indicating that demand for postquantum migration among Korean financial institutions is beginning to move from policy discussion toward infrastructure-level implementation. As Korea advances both quantum technology policy and stablecoin-related regulatory discussions, BTQ believes QSSN is well positioned at the intersection of regulated finance, digital asset infrastructure and postquantum security.

About BTQ Technologies Corp.

BTQ Technologies is a quantum technology company focused on accelerating the transition from classical networks to the quantum Internet. Backed by a broad patent portfolio and deep technical expertise, BTQ is advancing a full-stack, neutral-atom quantum computing platform spanning hardware, middleware and postquantum security solutions for finance, telecommunications, logistics, life sciences, and defence.

We seek Safe Harbor.