Prodigy Gold NL has completed a Chrysos PhotonAssay analysis campaign on 27 select higher-grade reverse circulation samples from its 2025 drilling programs at the Tanami North Project in the Northern Territory, demonstrating a strong correlation with original Fire Assay data.

The comparison across the 27 samples from 12 drill holes showed an average grade of 11.56g/t Au by Fire Assay compared with 11.57g/t Au using PhotonAssay, yielding a coefficient of determination of approximately 98.8%. Original Fire Assay grades in the tested dataset ranged from 5.0g/t Au to 40.1g/t Au.

The check program evaluated samples from the Hyperion, Tethys, and Suess lodes at the Hyperion Deposit alongside six samples from the Tregony Deposit. At Tregony, drill hole TGRC25007 returned three consecutive samples from a depth of 59m to 62m averaging 29.4g/t Au by Fire Assay and 28.9g/t Au by PhotonAssay, with a peak individual result reaching 40.1g/t Au by Fire Assay and 41.6g/t Au by PhotonAssay.

"The 2025 PhotonAssay check program has again returned a strong comparison with our original Fire Assay data. Importantly, the correlation of results across a range of higher grades and across drilling from the Hyperion and Suess lodes at the Hyperion Deposit and six samples from the Tregony Deposit instills confidence in both analytical methods."

"The close correlation between the two methods provides an additional level of trust in the higher-grade results generated from the 2025 drilling program. PhotonAssay uses a substantially larger sample mass than conventional Fire Assay and is therefore a useful QAQC tool, particularly where higher-grade or potentially coarse-gold mineralisation is present."

— Mark Edwards, Managing Director

Prodigy Gold will maintain Fire Assay as its primary analytical method to ensure consistency with the broader drill database and the Mineral Resource estimation process. PhotonAssay will continue to be deployed selectively as an independent quality assurance and quality control check.

The current verification follows a 2024 check program that evaluated 30 samples exceeding 8.5g/t Au, whereas the latest dataset covers a broader grade range starting from 5.0g/t Au. The work also complements recent resource development at the project, where the Hyperion Mineral Resource was updated in March 2026 to total 9.8Mt at 1.4g/t Au for 454,000 ounces.

Looking ahead, Prodigy Gold plans to undertake a deep diamond drilling program consisting of a single 600m HQ drill hole, designated HYDD26001, to test a chargeability anomaly located at the Hyperion Deposit.

Read the full announcement: PhotonAssay Confirms High-Grade Gold Results at Tanami North