Using a planned 480 Ktpa CIL plant as foreshadowed by Rox at...

Using a planned 480 Ktpa CIL plant as foreshadowed by Rox at least one short decline will be needed to access high grade ore.
A rough guide to AISC and Capex can be gleaned from the nearby Penny Gold project owned by RMS,

▪ Penny Feasibility Study

o AISC cost reduced to A$633/oz (PFS: A$703/oz)

o Upfront capital cost increased to A$34.5M (PFS: A$23.5M) due largely to re-allocation from operating costs to capital

o Metallurgical Recovery increased to 95% (PFS: 92%)o NPV5% of A$301M @ A$2,300/oz, IRR 240%, Payback of 26 months o

Penny North Underground Mine and will be accessed from the Penny West Pit and will ultimately be mined to a depth of 180mRL (~315m below surface).

Rox's AISC will be higher because the grade is lower and RMS uses a larger plant but even so this comparison augers well for an AISC margin of $1,000 oz Au.
The RMS Capex is $34.5M but the depth of their pit is 315m below surface.
Rox's shallow decline mine design is likely to resemble Penny's but not nearly as deep




Imo the forthcoming Scoping Study is likely to have a Capex as low as $100m and to show a profit of $1000 oz Au.
Numbers in the vicinity of these are likely to kickstart a project that will grow exponentially over the next few years.
Rox has more than 3m oz Au with a large proportion of high grade ore at close to 7 g/t,

My opinion DYOR