Hong Kong's Securities and Futures Commission confirmed that STREAMS 2, the Joint Financial Intelligence Unit's new suspicious transaction reporting platform, would fully replace the legacy STREAMS system from 2 February 2026. From that date, licensed corporations and other reporting entities must submit suspicious transaction reports exclusively through STREAMS 2. This article covers what STREAMS 2 changes and what it means for the monitoring processes that feed into a report.
What changed on 2 February 2026
The legacy STREAMS platform closed in a short blackout window from 28 January to 2 February 2026, after which STREAMS 2 became the exclusive channel for suspicious transaction reports to the Joint Financial Intelligence Unit, a body co-staffed by the Hong Kong Police Force and the Customs and Excise Department. STREAMS 2 supports three submission methods: XML submission, a completed STR in a prescribed PDF format, and a direct online web form, each requiring a Hongkong Post e-Cert or registered STREAMS 2 login credentials.
Firms that had not registered for STREAMS 2 access before the transition risked being unable to file a report at all during the changeover window, which made early registration, not just awareness of the new platform, the practical priority in the lead-up to February 2026.
Why the platform matters more than it first appears
A reporting platform change can look like an administrative footnote next to a new law, but STREAMS 2's more comprehensive, industry-tailored data fields change what a firm's internal monitoring and case-management process needs to capture before a report is even drafted. If an institution's monitoring workflow does not already collect the detail STREAMS 2 asks for, staff end up reconstructing information at the point of filing, which slows down an obligation that already carries statutory timeframes.
This is a useful moment for firms to check that their internal alert investigation template captures the same fields STREAMS 2 requires, rather than discovering the gap under time pressure when a genuine suspicious matter arises.
The wider reporting landscape in Hong Kong
Suspicious transaction reporting in Hong Kong sits within a long-standing statutory framework, principally the Drug Trafficking (Recovery of Proceeds) Ordinance, the Organized and Serious Crimes Ordinance, and the United Nations (Anti-Terrorism Measures) Ordinance, which together create the legal obligation to disclose knowledge or suspicion that property is connected to crime or terrorism. STREAMS 2 is the delivery mechanism for that obligation, not a change to the underlying legal duty.
Beyond reporting mechanics, Hong Kong's virtual asset regulatory perimeter has also been expanding under the Anti-Money Laundering and Counter-Terrorist Financing Ordinance, which introduced statutory AML/CTF obligations and a licensing regime for virtual asset service providers operating exchanges. Firms operating or advising in this space should confirm the current state of any further licensing category proposals directly with the SFC and HKMA, since virtual asset regulation in Hong Kong continues to evolve and this article does not treat unconfirmed proposals as settled.
What compliance teams should do now
Firms should confirm their STREAMS 2 registration is active, audit whether their internal investigation and escalation templates already capture the fields the new platform requires, and build in a short lead time before any live filing to test the XML, PDF or web-form submission route they intend to rely on. None of this replaces the underlying analytical work of transaction monitoring, catching the unusual pattern in the first place remains the harder and more important task, but a reporting platform that a firm cannot use smoothly under deadline pressure is its own operational risk.
