Ann: 3D Resources Increase Resources at Adelong Goldfield, page-11

Beautiful news.

Over the weekend, I drilled down Adelong related announcement and past.
In an interview with ABC, https://www.abc.net.au/news/2020-08-13/gold-miner-hopes-for-success-at-adelong-as-price-climbs/12553742, the director claim that the old mine productivity was not good due to wrong process:

Mr Mitchell said the most recent attempt had not failed due to poor quality or lack of gold, but rather due to issues with mining equipment at the site."The actual ore itself is very amenable to treatment, but unfortunately the plant [the previous owners] built wasn't very suitable," he said.


Does anyone have any further information shining a light to this?
What about mining cost?