SDI (ASX:SDI) reported preliminary unaudited sales for the six months ending Dec. 31, 2025, of AU$53.1 million, up 3% from a year ago and down 1.2% after adjusting for currency movements, according to a Wednesday Australian bourse filing.

The company reported a rise of 11.9% rise in Australian direct export markets in local currencies.

The company said that amalgam sales continue to weaken, down 19% in Australian dollars from last year and now representing 10% of total sales, with North America and Europe the weakest regions.

Gross profit margins for the first six months of the 2026 fiscal year increased to 66.1% compared to 63.5% last year, reflecting continued efficiencies in production, product mix, and favourable currency rates.

The company expects net profit after tax between AU$3.5 million to AU$4.0 million for the six months ending Dec. 31, 2025, compared to AU$3.8 million last year.

The company's shares fell 5% in recent Wednesday trade.