** Shares of Deep Yellow DYL.AX are down as much as 13.3% to A$1.040, their biggest intraday percentage loss since Aug. 2

** Uranium explorer says that there is a delay in the final investment decision for its key Tumas project in Namibia, now expected in early March 2025

** Delay is due to the firm awaiting final costings and quotes for equipment and construction, others

** Stock hits its lowest level since Sept. 11

** Over 6.1 mln shares change hands, 1.8x the 30-day avg

** Stock is the biggest loser in the benchmark S&P/ASX 200 index .AXJO

** Stock down 3.7% YTD, including current session, as at 0433 GMT

(Reporting by Kumar Tanishk in Bengaluru)

((Tanishk.Kumar@thomsonreuters.com;))