STAKK LIMITED — Capital/Financing Update 2026

Mar 23, 2026

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Stakk lands A$7.85M (US$5.5M) Major Contract as demand for its AI-native execution-layer infrastructure increases

Sydney, Tuesday 24 March 2026, Stakk Ltd (ASX: SKK) (“Stakk” or “the Company”), a leading AI-native trust and decisioning infrastructure provider for regulated industries, is pleased to announce that its wholly owned U.S. subsidiary, Stakk IQ, Inc., has secured a major new enterprise client in the United States worth A$7.85 million (US$5.5 million) in revenue over a 12-month period.

This agreement – based on revenue contribution over a single 12-month period – represents the largest individual client contract secured by the Company and reflects growing enterprise adoption of Stakk’s AI-native execution-layer infrastructure in highly regulated environments, where identity certainty, fraud mitigation, and auditability are critical.

By combining federated signal intelligence, real-time interaction validation, and deterministic decisioning, Stakk operates within the execution path of digital interactions, governing whether transactions are permitted to proceed in compliant, auditable environments.

The Company expects this deployment to drive continued expansion across U.S. regulated sectors, building on its established leadership position in financial services and recent expansion into telecommunications, and now extending into healthcare and other regulated industries, as demand for integrated, real-time trust infrastructure accelerates.

Key Contract Metrics:

• Customer: U.S.-based Intelligent Document Capture (IDC) provider serving regulated industries, including healthcare

• Total Contract Value: A$7.85 million (US$5.5 million) over a 12-month period

• Immediate Cash Receipts: 50% of contract value (A$3.93 million) to be received by 31 March 2026, to be reflected in the Company’s March quarter Appendix 4C

Stakk Limited | ABN 41 108 042 593 | stakk.tech |

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• Balance of Receipts: The balance of A$3.93 million expected on or before 31 October 2026

• Deployment: Dedicated, stand-alone instance of Stakk’s execution-layer infrastructure

Due to the confidential and commercially sensitive nature of the engagement, including its intended application within the U.S. healthcare ecosystem, the identity of the customer has not been disclosed.*

Scope of Deployment

Stakk will deliver a custom-configured, stand-alone deployment of its execution-layer digital infrastructure, designed to embed directly into the client’s platform environment.

The solution combines intelligent signal capture, document and identity authenticity validation, and real-time decisioning across each interaction. Through continuous analysis of image, biometric, device, and behavioral signals, the platform determines – at the point of interaction – whether a genuine individual is presenting a legitimate credential within a trusted digital context, and enables compliant transaction execution with that verified party.

* Stakk does not consider the identity of the counterparty to be information that a reasonable person would expect to have a material effect on Stakk’s price or value of Stakk’s securities. Stakk confirms this announcement contains all material information relevant to assessing the impact of the contract on the price or value of the entity’s securities, and is not misleading by omission; and a description of the counterparty is provided above.

This announcement is approved by the Board of Directors. AUD revenue is calculated on a 1:1.43 exchange rate to USD (24 March 2026).

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About Stakk

Stakk is a leading AI-native trust and decisioning infrastructure provider for regulated industries — an execution-layer digital infrastructure embedded within the control path of regulated systems across Australia and the United States. Serving more than 215 banks, credit unions, neobanks, fintech platforms, and global enterprises, Stakk governs highconsequence digital interactions in real time, preventing invalid or fraudulent activity from entering institutional core systems.

Stakk Limited | ABN 41 108 042 593 | stakk.tech |

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The platform combines federated signal intelligence, contextual digital personas, realtime authentication, orchestration, and settlement within a closed-loop, SOC 2 Type II compliant environment purpose-built for regulated institutions.

For more information visit www.stakk.tech

Stakk Limited | ABN 41 108 042 593 | stakk.tech |

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