Aeris Resources (ASX:AIS) said its group copper-equivalent production for the March quarter came in at 10,400 tonnes at an all-in sustaining cost of AU$4.86 per pound of copper-equivalent, according to a Wednesday Australian bourse filing.

The company's group copper-equivalent production for the March 2025 quarter was 10,700 tonnes at an all-in sustaining cost of AU$4.91 per pound of copper-equivalent, according to an earlier filing.

Copper produced from the Tritton operations in New South Wales was slightly below the revised plan due to lower grade mined from both underground and open pit, per the filing. Fiscal 2026 production is forecast to be within the low end of guidance.

The board approved the start of early works construction for the Constellation project to support the Tritton life of mine, and initial activities are scheduled to begin in May, the filing said.

The Cracow project in Queensland produced 10,100 ounces of gold at all-in sustaining cost of AU$3,442 per ounce, compared with 9,000 ounces produced at increased all-in sustaining cost of AU$3,473 per ounce in the year-ago quarter.

Aeris Resources' shares advanced nearly 2% in recent trading on Wednesday.