Sunrise Resources Plc (LON:SRES) has received permission to start a second phase of exploration drilling at the CS pozzolan-perlite project in Nevada.
The Phase 2 programme will see a further 22 drill holes and help define the boundaries of an open pit.
READ: Sunrise Resources raises £500,000 to advance CS pozzolan-perlite project
Patrick Cheetham, Sunrise's executive chairman, said Phase 1 had confirmed the pozzolan at CS met the strength and quality requirements, but the results from this next stage of drilling and advanced perlite testing will identify the best place to start mining.
Natural pozzolans are a more environmentally acceptable alternative to Portland cement while perlite is a lightweight industrial material used in plant nurseries, Sunrise added.