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Hong Kong and Chongqing launched a cross-boundary data validation platform using blockchain and hash values to support banking use cases.
Hong Kong and Chongqing authorities have launched a new cross-boundary data validation platform designed to verify customer-provided information without transferring or storing original documents across the border, according to the Hong Kong Monetary Authority and the Chongqing authorities on 14 October 2026. The move expands a data-infrastructure model previously used in the Shenzhen-Hong Kong corridor and is intended to support banking services such as account opening and loan applications.
Evidence and context
The Chongqing-Hong Kong Cross-boundary Data Validation Platform, or CQ-HK DVP, was jointly established with support from the HKMA, the People’s Bank of China Chongqing Municipal Branch, the Office of the Financial Commission of the Chongqing Municipal Committee, the Office of the Cyberspace Affairs Commission of the Chongqing Municipal Committee and the Hong Kong and Macao Affairs Office of the Chongqing Municipal People’s Government, the HKMA said in its 14 October 2026 announcement. The platform uses blockchain technology and data coding, described in the release as hash values, to validate data presented by customers without moving the underlying documents across the boundary.
The HKMA said the platform will mainly support cross-boundary financial use cases at the outset. Banks in Chongqing and Hong Kong are actively advancing use cases covering both northbound and southbound data flows, the authority said, with expected support for services including account opening and loan applications. HKMA Chief Executive Eddie Yue said the initiative fits under the authority’s “Fintech 2030” strategy and is intended to foster secure and efficient cross-boundary data flow between Chongqing and Hong Kong.
The announcement also points to the earlier Shenzhen-Hong Kong Cross-boundary Data Validation Platform as a reference point for the model. According to the HKMA, that platform was pilot launched in May 2024 and linked to the HKMA’s Commercial Data Interchange in April 2025. As of 14 October 2026, the Shenzhen-Hong Kong platform had been used more than 40,000 times and had supported more than 10 banks across more than 10 business scenarios, including account opening, remittances and loans. Those figures relate to the Shenzhen-Hong Kong platform, not the newly launched Chongqing-Hong Kong system.
The latest launch follows the direction set out in “The Chief Executive’s 2026 Policy Address,” which identified a new cross-boundary data validation mechanism with Chongqing as one of the measures to encourage the orderly flow of financial elements between the Chinese Mainland and Hong Kong. The Hong Kong and Chongqing authorities did not provide a timetable for broader rollout beyond the initial banking use cases.
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