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Newcrest Exploration Quarterly Report

Quarterly Exploration Report
For the three months ended 31 December 2021

Red Chris and Havieron drilling continues to expand mineralisation

At Red Chris, drilling continues to expand the footprint and continuity of the higher grade mineralisation at East Ridge.

  • Drilling has expanded mineralisation to the east, hole RC740 returned 156m @ 0.73g/t Au & 0.71% Cu from 1,452m, including 86m @ 1.2g/t Au & 0.97% Cu from 1,522m and hole RC745^^ returned 366m @ 0.45g/t Au & 0.57% Cu from 728m, including 36m @ 1.4g/t Au & 1.2% Cu from 960m. RC740, located 100m east of RC745 is one of the most eastern holes drilled to date. Mineralisation remains open to the east.

  • Holes RC739 and RC748 demonstrated continuity of higher grade. RC739^^ returned 390m @ 0.63g/t Au & 0.48% Cu from 1,088m, including 44m @ 2.0g/t Au & 1.3% Cu from 1,402m. This hole is located 100m east of RC727 (previously reported, returned 346m @ 1.1g/t Au & 0.79% Cu from 1,046m, including 56m @ 3.5g/t Au & 1.8% Cu from 1,336m) and extended the higher grade a further 100m to the east. RC748 returned 452m @ 0.60g/t Au & 0.54% Cu from 1,192m including 106m @ 1.2g/t Au & 1.0% Cu from 1,384m. The hole is located 100m below RC727 (previously reported) and extended the higher grade mineralisation a further 100m down dip.

  • Drilling to define the extent of the East Ridge mineralised corridor is ongoing.

At Havieron, growth drilling continues to identify high grade extensions to the South East Crescent Zone at depth as well as high grade crescent style mineralisation within extensions of the Eastern Breccia. Highlights include:

  • South East Crescent extensions more than 250m below the current Mineral Resource estimate continued to return high grade results including HAD086W3^^ 44.7m @ 7.1g/t Au & 0.17% Cu from 1,412m including 20.2m @ 15g/t Au & 0.29% Cu from 1,421m.

  • High grade extensions to the Eastern Breccia 200m to the SW of previous drilling include HAD104: 62.5m @ 5.9g/t Au & 0.30% Cu from 1,546.5m including 49.4m @ 7.1g/t Au & 0.38% Cu from 1,554.6m. This result is the most significant seen outside of the South East Crescent Zone to date, and confirms the potential for this separate NW trending Eastern Breccia corridor to host Crescent style high grade mineralisation. Drilling is now focussed on defining the extents of this higher-grade mineralisation which remains open in all directions.

  • At the South East Crescent Zone the infill drilling completed validates both geological and grade continuity.

  • Drill testing of new geophysical targets 2km outside of the Havieron system has commenced.