Ann: Drilling Commenced at Yandan, page-12

Note as Mineralised showed in the section and the release (page 5), there is a high grade cherry inside a larger resource.
https://asx.api.markitdigital.com/asx-research/1.0/file/2924-02325910-6A1013955?access_token=83ff96335c2d45a094df02a206a39ff4

This project has optionality on existing resources, smaller high grade resource for UG mining if gold prices soften or larger lower grade large open pit, larger tonnage operation if a pit pushes down to the deeper ore with higher gold prices.
Note, 300m is not deep for an UG operation, a little deep for open pit, but Super Pit (WA) has mined to 500m and heading to 700/800m.



Other key feature of the Yandan project is the significant mine infrastructure, power, water, tailings etc, so a great spot for a processing hub, bring in higher grade ores and increase scale with larger lower grade local resources. Pay the plant off with higher grade ore (Twin Hills) and then expand plant and feed in more local lower grade ore.

Gascoyne Resources (ASX GCY), Slide 24, has a good example of larger scale, lower grade operation, and AISC - $1250/oz
https://www.gascoyneresources.com.au/wp-content/uploads/2021/03/20210322-GCY-Investor-Webinar-Presentation.pdf
While it did have a near death experience, it seems to be trading well now with volume and lower grades at current A$ gold prices.