Southern Cross Gold Consolidated Ltd (ASX:SX2) has mobilised two underground diamond drill rigs at its 100%-owned Sunday Creek Gold-Antimony Project in Victoria, bringing the total number of operating rigs at the project to 14, with a planned ramp-up to 24 rigs by February 2027.

Key Points

  • Two underground diamond drill rigs have been mobilised into the exploration decline at Sunday Creek, joining 12 surface rigs for a total of 14 rigs operating at the project.
  • Two additional underground rigs are planned for November 2026, with eight further rigs to follow in February 2027, bringing the total to 24 rigs.
  • Underground drilling allows 24-hour operations with reduced surface impacts and shorter holes to depth targets, reducing drilling metres and cost per target.
  • The company is targeting its first mineral resource estimate and economic studies during the first half of 2027.

Underground Drilling Commencement at Sunday Creek

Two underground diamond drill rigs have been mobilised from the Private Jenkin Exploration Decline at the Sunday Creek Gold-Antimony Project, located 60 kilometres north of Melbourne. According to the company's filing, bringing underground drill rigs into the decline was the primary aim of the exploration decline. The underground rigs enable drilling 24 hours a day with reduced surface impacts, while shorter holes to depth targets reduce the metres and cost of drilling required to test each target. The project spans 16,900 hectares of granted exploration tenements, with the company also the freehold landholder of 2,296 hectares forming the key portion of the main drilled area.

Rig Ramp-Up Schedule Through February 2027

The filing outlines a staged ramp-up of underground drilling capacity. Two further underground rigs are scheduled to arrive during November 2026, in addition to the two already mobilised. A further eight rigs are scheduled for February 2027, which would bring the total number of rigs operating at Sunday Creek to 24. The company currently has 12 rigs operating on surface. President and CEO Michael Hudson stated that within five months of firing the exploration decline portal, drill rigs are now operating underground, describing the timeline as an achievement of the mining and drill teams and contractors involved.

Sunday Creek Project Drilling and Mineralisation Status

The filing states that 288 drill holes totalling 140,848.84 metres have been reported from Sunday Creek since late 2020. The project contains 106 composite intersections exceeding 100 grams per tonne gold and 85 composite intersections between 50 and 100 grams per tonne gold, applying a 1 metre downhole length at 5 grams per tonne gold equivalent lower cut. At least 126 mineralised vein structures, referred to as "rungs," have been defined to date. The mineralised system is currently drill-defined over 1,550 metres of strike, with approximately 650 metres more intensively tested. Ongoing step-out drilling is targeting the potential extent of the mineralised system.