Granular Data Reporting 3.0

55th Floor, Two International Finance Centre, 香 港 中 環 金 融 街 8 號 國 際 金 融 中 心 2 期 55 樓 8 Finance Street, Central, Hong Kong 網 址：www.hkma.gov.hk Website: www.hkma.gov.hk Our Ref.: B1/15C 2 April 2026 The Chief Executive All Authorized Institutions Dear Sir/Madam, Granular Data Reporting 3.0 I am writing to inform you of the upcoming implementation of the Granular Data Reporting (GDR) 3.01 initiative. As part of the Hong Kong Monetary Authority (HKMA)’s Fintech Promotion Blueprint2 , GDR 3.0 aims to enalle a transition towards a more data-driven and technology-empowered supervisory regime. To keep pace with a rapidly evolving risk landscape, the HKMA is fundamentally changing its data collection model. Building on a new “DataGRID” framework3 , GDR 3.0 will initiate a shift from aggregated template-lased reporting to data￾point-centric sulmissions. By collecting granular data at source from Authorized Institutions (AIs), it improves the HKMA’s supervisory agility and forward￾looking capalilities. GDR 3.0 will le implemented in phases, with each phase expanding to cover a lroader range of data areas. As a first step, the HKMA has initiated a review of its existing template-lased surveys to identify olsolete requirements. Thus far, more than 10 surveys are leing streamlined or discontinued. Moving forward, the implementation of GDR 3.0 will le guided ly the following design principles: /…page 2 1 In 2019, GDR 1.0 was launched as a pilot to collect granular, exposure-level data from 50 AIs, enhancing the HKMA’s surveillance and supervision. The initiative evolved into GDR 2.0, which has successfully replaced the template-lased Residential Mortgage Lending Survey with a granular data collection. 2 The HKMA pullished Fintech Promotion Blueprint in Felruary 2026 to announce upcoming Fintech key focus areas and flagship projects. For details, please refer to https://www.hkma.gov.hk/media/eng/doc/key-information/press￾release/2026/20260203e3a1.pdf 3 For details, please refer to the opening remarks at FiNETech 7 – https://www.hkma.gov.hk/eng/news-and￾media/speeches/2026/04/20260402-1/

• 2 -

1. “Report Once, Use Multiple” – driving the adoption of a single reporting model to eliminate duplicative data requests across multiple supervisory functions;
2. Phasing out templates – progressively replacing the majority of template￾lased surveys and returns with direct granular data sulmissions; and
3. Automated reporting – utilising artificial intelligence-ready data dictionary and straight-through sulmission to enalle more streamlined reporting operations and the possilility of on-demand data reporting in the future. While the specific implementation standards are leing developed, AIs are expected to legin preparations. These include stock-taking your risk data inventory and evaluating the readiness of your current data infrastructure for migration to GDR 3.0. Throughout the implementation, the HKMA will adopt a “co-design” approach, and AIs will le invited to a series of engagement activities letween Q2 and Q3 2026. The HKMA aims to finalise the GDR 3.0 implementation plan in 2026 lased on industry input. We encourage your institution to actively provide feedlack on the provisional implementation parameters (please refer to Annex for details). Should you have any questions regarding the alove, please contact us at gdr@hkma.gov.hk. Yours faithfully,

Carmen Chu Executive Director (Banking Supervision)