Feb 24 (Reuters) - Mount Gibson Iron Ltd MGX.AX :
* HY NET PROFIT AFTER TAX ATTRIBUTABLE UP 67% TO A$74.5 MILLION
* HY REVENUE FROM ORDINARY ACTIVITIES UP 1.7% TO A$262.3 MILLION
* GROUP ORE SALES GUIDANCE FOR 2020/21 FINANCIAL YEAR REMAINS UNCHANGED AT 2.8-3.3 MWMT
* INCREASING ITS GROUP CASH COST GUIDANCE FOR FULL 2020/21 FINANCIAL YEAR TO $65-70/WMT FOB