On 9 October 2026, Electro Optic Systems Holdings Limited (ASX:EOS) announced that it has entered into a contract with the government of a Middle Eastern Gulf state, a Gulf Co-operation Council member, for a nation-wide counter-drone defence system valued at £370 million (approximately A$700 million). The company said it is the largest contract it has secured, and that it is subject to conditions.

Scope of the contract

The contract requires deployment of a cellular, nation-wide counter-drone system with EOS’s NiDAR command and control software at its core, which EOS acquired through the MARSS acquisition. EOS acts as prime contractor and systems integrator.

It includes third-party electro-optical, radar and sonar sensors, plus an initial Supply of third-party effectors such as hard-kill interceptors and soft-kill jammers. EOS expects over 80% of Revenue to be earned in the first 12 to 24 months after the contract becomes unconditional, with about 20% of the value related to ongoing support over four years.

Conditions that must be met

EOS must provide a performance bond guarantee for 10% of the contract value (£37 million), which was provided on 12 August 2026 and is secured by a cash deposit of £40.3 million (about A$77.0 million) held at a commercial bank. It must also provide a bank guarantee of £74 million, matched by an advance payment of the same amount from the customer, and obtain relevant export licences within two months of receiving necessary documentation from the customer.

EOS said it requires certain consents and further accommodation from WHSP and guarantee Facility providers in connection with the performance bond and guarantee, and that there is no guarantee if or when the conditions will be met.

Financial and execution terms

EOS said the contract is expected to be profitable and Cash Flow positive over its term, but will need significant short-term Working Capital early on, expected to turn positive in mid-2027. It referred to a May 2026 capital raising used to fund the MARSS Acquisition and provide working capital.

The customer may terminate or withdraw work and execute it at EOS’s expense if a condition is not met. The contract includes a five-year warranty from acceptance, termination rights, and both capped and uncapped damages for failure or delay. EOS said the contract carries financial and operational risks, some significant, and that it is recruiting additional resources.

Sector backdrop

Counter-drone systems integrate sensors, command and control software and effectors to detect and defeat unmanned aircraft. Demand has been linked in the release to recent Middle East conflicts and the cost of using interceptor missiles against low-cost drones.

Large defence export contracts typically involve government licensing, financial guarantees and advance payments, and performance is subject to delivery schedules and penalties.

Risks shareholders should weigh

The contract is conditional. Performance cannot begin until the conditions are met, including the £74 million bank guarantee and advance payment and export licences. Failure to meet a condition gives the customer rights to terminate or take over the work at EOS’s expense.

EOS has tied up a cash deposit of £40.3 million for the performance bond, and needs consents from WHSP and guarantee providers. The release states a significant short-term working capital funding requirement before cash flow turns positive in mid-2027.

The contract includes uncapped damages for certain failures, a five-year warranty and reliance on third-party sensors and effectors. Revenue is concentrated with one customer, and recruiting resources and obtaining export licences for multiple components are execution risks.

What’s next

EOS said it will work to satisfy the conditions in the coming months and will deploy a team to the customer’s country. Shareholders may wish to watch for announcements on the guarantee and advance payment, export licences, the consents from WHSP and guarantee providers, and when the contract becomes unconditional.