**Shares of ADX Energy ADX.AX fall as much as 22.2% to A$0.025, their lowest level since September 16

** Energy producer to raise A$3.5 million ($2.27 million) through placement

** Offer price of A$0.026 per share marks an 18.8% discount to stock's last close

** Proceeds to be used for recommencement of Welchau-1 gas reserve testing in Upper Austria during January 2026, among others - co

** YTD, stock flat

($1 = 1.5389 Australian dollars)

(Reporting by Aamir Sheik Khalid in Bengaluru)

((Aamir.SheikKhalid@thomsonreuters.com))