**Shares of GR Engineering Services Ltd GNG.AX rise as much as 5.5% to A$3.24, their highest level since Sept 7, 2011

**Stock up 4.23% at A$3.2 as of 0150 GMT

**Gold explorer AIC Mines A1M.AX awards GNG, which provides engineering and construction solutions to miners, an A$77.6 million ($50.26 million) contract

**The engineering, procurement, and construction contract will expand AIC's Eloise processing facility in Queensland

**YTD, stock up 29.55%

($1 = 1.5439 Australian dollars)

(Reporting by Shruti Agarwal in Bengaluru)

((Shruti.Agarwal@thomsonreuters.com;))