Swan Zone stopes have driven Fosterville's grade to 49.3gpt and recoveries to 99.2%, both records.
Ground has similar geology to the Fosterville gold mine.
Three companies developing light electric vehicles for the mining market.
Follows up wins in 2009, 2014 and 2015.
Production jump driven by 39.9 grams per tonne grade.
Fosterville has become one of mining's great success stories.
High grade zones led to mines "outperformance".
Part of plan to push to production of more than 400,000oz by 2020.
Will treat produced water stream to reduce chloride levels.