Krungthai Bank is one of the largest state-owned commercial banks in Thailand. It has a number of branches around the world and is committed to providing high-quality financial services. KTC is Krungthai Bank's credit card center. It provides a wide range of financial services and products, including credit cards, payments, loans, leases, e-money, and merchant services. As of March 31, 2023, KTC had about 3.3 million accounts, including 2.5 million credit card accounts and 700,000+ individual loan accounts.

All of KTC service systems, including the Acquiring System, Issuing System, Royalty System, Workflow, and DB2, all ran on traditional servers, but traditional servers are expensive and hard to scale or maintain. It had been handicapping the rapid service development. With the "cloud first" strategy, KTC planned to build an agile service platform on cloud to support flexible resource scaling and rapid service development. KTC chose Huawei Cloud for secure and reliable service deployment.

Huawei Cloud's Cloud Container Engine (CCE) Turbo cluster solution supports elastic resource scaling and provides KTC with sufficient computing resources at any time. By using container security groups in Cloud Native Network 2.0, KTC can control access from containers running different services to on-premises data centers, setting up a more secure network environment. Additionally, the master node and worker nodes are distributed across three AZs for higher reliability.

Huawei Cloud's Landing Zone solution uses the Enterprise Router service to centrally control the inbound and outbound traffic of multiple projects across accounts, preventing unauthorized public network access. Enterprise projects are managed separately by production and non-production accounts to reduce the adverse impact of faults on services. Different projects share the same private line bandwidth across accounts, eliminating the need to purchase bandwidth for each project.