Forgent PLC (AIM:FORG), the energy transition company, saw its shares rise 13.5% to 0.019p after reporting exceptional copper and gold grades from a maiden surface sampling programme at its Green Rocks project in the Ashburton Basin of northwest Western Australia.
The company said 110 samples were collected during April 2026, with 22 returning copper grades above 5% and 25 returning gold grades above 0.3 grams per tonne, thresholds considered highly anomalous in early-stage exploration.
Peak results included copper grades of 29.4%, 27.2%, 26.8%, 23.8% and 20.8%, alongside gold grades of up to 4.80 grams per tonne, with high-grade mineralisation identified at surface across multiple locations proximal to interpreted faults, dyke margins and structural intersections.
Grades above 1% copper are typically considered economically interesting at the exploration stage, making the bonanza-grade surface hits a significant early indicator of the project's potential, though surface sampling results do not necessarily reflect the grade or continuity of mineralisation at depth.
Forgent said the results validated historic sampling data and extended the known extent of outcropping mineralisation in multiple directions, with several undrilled high-grade prospects now identified and prioritised for follow-up.
The company's next step is to design a maiden drilling programme and submit a Programme of Work to the Western Australian Department of Mines, Petroleum and Exploration, alongside heritage surveys required before ground disturbance can commence.
Chief executive James Parsons said grade was one of the key drivers of exploration success and that the programme had confirmed exceptional results, expanded known surface mineralisation and identified multiple new targets.
No drilling results have yet been obtained at Green Rocks, meaning the scale and economic significance of the mineralisation remains to be determined.