Ann: NTC Upgrades Earnings Guidance and Appoints New Global Bank, page-8

You might want to look up ASX CONTINUOUS DISCLOSURE: LISTING RULES 3.1 – 3.1B.

Previous guidance was for EBITDA above $5.2million (lets assume $5.3million), current guidance EBITDA $7million an increase of 32%. It's an ASX requirement to disclose any material difference (>10%) in earnings compared to guidance once the board becomes aware of it.