Alpha Lithium Announces Positive Preliminary Economic Assessment Results for Tolillar Project in Argentina US$1.5 billion (CDN$2.0 billion) after tax NPV8 with an IRR of 25.1%US$5.3 billion (CDN$7.1 billion) of cumulative free cash flow over a 25-year mine life3.8-year after-tax payback period from start...