Thailand's KASIKORNBANK (KBank) has partnered with Singapore's StraitsX and Grab to launch a new cross-border payment solution for Thai travelers. Using KBank's Q Wallet, tourists can now pay Singaporean merchants by scanning GrabPay QR codes. This service aims to eliminate common payment frictions, such as high fees and the reliance on cash.
Addressing Cross-Border Payment Challenges
Cross-border payments in Southeast Asia have long been characterized by fragmentation and inefficiency for travelers. Tourists often face the inconvenience of exchanging physical currency or managing multiple, unfamiliar payment applications. These methods typically involve high foreign exchange rates and settlement costs, creating a cumbersome experience.
To address these challenges, KBank has expanded its Q Wallet to facilitate direct payments between Thailand and Singapore. Thai tourists can now simply scan GrabPay QR codes at participating merchants using their domestic KBank app. This innovation removes the need to open foreign bank accounts or carry large amounts of cash.
A Strategic Tripartite Collaboration
This service is the result of a strategic collaboration between three major financial and technology entities. KBank, a leading Thai financial institution, is driving the initiative by extending its digital wallet capabilities abroad. The bank aims to pioneer a new era of convenient and secure mobile payments for its traveling customers.
Singapore-based StraitsX provides the core blockchain settlement infrastructure for the service. As the issuer of the XSGD stablecoin, StraitsX enables the real-time transfer of value between the two payment ecosystems. Both StraitsX and KBank are also participating members of the Monetary Authority of Singapore's Project BLOOM.
Grab contributes its extensive merchant network, ensuring the service is widely accessible across Singapore. By accepting payments through the established GrabPay system, the collaboration gives travelers access to a vast array of businesses. This integration is crucial for providing a practical and widespread payment option for tourists on the ground.
The Technology Powering Seamless Transactions
The system operates on advanced blockchain technology, using KBank’s e-money, Q-money, as the settlement medium. This digital currency functions on Quarix, a proprietary blockchain developed by a KASIKORNBANK affiliate. This foundation ensures all transactions are fast, transparent, and fully traceable from end to end for enhanced security.
A key technical feature is the interoperability between KBank's Q-money and the XSGD stablecoin from StraitsX. This connection facilitates instant settlement, allowing merchants to receive funds immediately without delays. The implementation of Purpose Bound Money also ensures robust controls are in place for every transaction flow.
Vision for the Future of Regional Payments
Dr. Karin Boonlertvanich of KBank noted that Singapore was chosen as the first pilot market for this expansion. He described the project as a milestone in developing digital infrastructure that connects international spending. This initiative serves as a model for future cross-border systems that support the regional digital economy.
Tianwei Liu, CEO of StraitsX, emphasized that travelers should not have to worry about currencies when crossing borders. He stated that connecting Q-money with XSGD demonstrates how stablecoins can power the next generation of regional payments. This partnership showcases a practical application of blockchain to solve real-world financial challenges.
This collaboration between KBank, StraitsX, and Grab marks a significant advancement in regional financial technology. Operating within the Bank of Thailand's regulatory sandbox, the initiative enhances the travel experience and strengthens economic ties. It sets a new standard for secure, efficient, and user-friendly cross-border payments in Southeast Asia.

