to become major lithium producer

ADY will be producing 12,000 tonnes pa of lithium chloride in a world market of around 90,000 tonnes pa.
With a mine life estimated at 127 years this company will become a major player. The announcement is a bit ambiguous but people have to be aware of the weight differences between lithium metal and lithium chloride. Lithium is the 3rd lightest metal in the periodic table of elements and needs to go through various processes to get to the end product.

You can not just multiply numbers in the announcement and expect it to all pan out accurately