Jan 24 (Reuters) - Navigator Global Investments Ltd NGI.AX :
* THERE HAS BEEN A $3.0 MILLION INCREASE IN OPERATING EXPENSES FOR H1 2018
* EXPECTS TO REPORT AN INCREASE IN EBITDA FOR HALF YEAR OF ABOUT 14%
* REDUCTION IN U.S. TAX RATE EXPECTED TO CREATE ONCE-OFF NON-CASH INCOME TAX EXPENSE ADJUSTMENT IN HY OF $36.8 MLN
* EXPECTS TO BENEFIT FROM LOWER US CORPORATE TAX ONCE IT UTILISES EXISTING NOLS & ENTERS A TAX PAYABLE POSITION
* ONCE-OFF, NON-CASH INCOME TAX EXPENSE ADJUSTMENT IN H1 TO RESULT IN STATUTORY NET OPERATING LOSS AFTER TAX FOR PERIOD