U.S. Federal Government Laboratories Verify Helium-3 Results at Pulsar Helium's Topaz Project in the USA

Executive Summary

• Two U.S. federal laboratories (USGS Noble Gas Lab and Lawrence Livermore National Laboratory) independently verified Pulsar’s helium‑3 (³He) concentration in gas from the Topaz Jetstream #1 well, confirming 11.2–11.9 ppb ³He with ~7.7–8.0 % helium‑4 (⁴He).
• The confirmed ³He levels rank among the highest naturally occurring concentrations on Earth, underscoring the strategic and commercial significance of the Topaz discovery.
• Pulsar will pursue U.S. government partnerships and potential off‑take agreements to accelerate development of this domestic ³He resource.

Key Details

• Laboratory Results – USGS measured 7.9 ± 0.2 % ⁴He with a ³He/⁴He ratio of 0.098 ± 0.005 Rₐ; LLNL reported 7.9 % ⁴He and a ³He/⁴He ratio of 0.108 Rₐ. Both align with WHOI’s prior result (7.7 % ⁴He, 0.104 Rₐ).
• Helium‑3 Concentration – All three labs indicate ~11.2–11.9 ppb ³He in the raw gas sample (≈10⁻⁸ by volume).
• Isotopic Ratio Consistency – ³He/⁴He ratios of ≈0.10 Rₐ across all analyses, confirming a single, stable helium source within the reservoir.
• Sampling Methodology – One representative copper‑tube (Cu‑tube) sample collected on 10 Dec 2025 by Dr. Peter Barry (WHOI) using industry‑standard continuous purging and sealed Cu‑tube capture; 21 discrete samples were taken, ensuring a robust representation of well gas.
• Strategic Value – ³He valued at ~US$2,500 per liter (>US$18 million per kilogram); applications include neutron detection, quantum computing cooling, and potential future fusion fuel.
• Comparative Significance – The ~11–12 ppb ³He places Topaz among the highest terrestrial reservoirs (previously reported up to 14.5 ppb) and comparable to lunar regolith estimates (1.4–15 ppb).
• Management Outlook – CEO Thomas Abraham‑James stated the company will engage U.S. government agencies for possible partnership, funding, or offtake arrangements to fast‑track project development.
• Next Steps – Pursue governmental collaborations, explore extraction and separation technologies, and continue appraisal drilling to delineate reservoir extent and pressure regime.

Notable Quotes

“Having the USGS and LLNL independently verify our helium‑3 results is a landmark moment for Pulsar… we intend to actively engage with the U.S. government regarding Topaz’s development.” – Thomas Abraham‑James, President & CEO

Materiality Assessment: Material – Positive (third‑party validation of a high‑value, strategically important resource that could materially affect the company’s valuation and future financing).