Speaking at the Noosa Mining & Exploration Conference, managing director Patrick Walta suggested the June quarter featured "good, improving" production and financial metrics.
The project's operating cash margin and adjusted earnings are both expected to be new records.
Estimates are for earnings of A$25-30 million (on an EBITDA basis).
That compares to the March's quarter's of $18.6 million.
New Century's June quarter results are due later this month.
Shares in New Century were down 2.5% to 20.5c in morning trade, capitalising the company at $248 million.
