BHP Group BHP.AX, Rio Tinto RIO.AX and Fortescue Metals FMG.AX rose between 1.4% and 2.6%. By Upasana Singh May 11 (Reuters) - Australian shares inched higher on Wednesday as gains in mining and healthcare stocks helped offset losses in banks, while investors awaited key U.S. inflation data for further cues on Federal Reserve's interest rate hikes. O/R] Biopharmaceutical firm CSL CSL.AX gained 2.1% to hit a near three-month high following a United States court ruling banning plasma donations by Mexican nationals entering the country on a B1/B2 visa.