** Shares of Alliance Nickel AXN.AX fall as much as 12.8% to A$0.041, hitting their lowest level since September 30
** Stock posts its biggest intraday pct loss since May 14
** Co says carmaker Stellantis STLAM.MI will terminate their supply deal for battery-grade nickel and cobalt from the NiWest project, effective December 3
** Says nickel prices have remained under sustained pressure over the past two years, making it difficult to fund new projects
** Stock up nearly 15% this year, including the day's move
(Reporting by Rajasik Mukherjee in Bengaluru)
((Rajasik.Mukherjee@thomsonreuters.com))