Deterra Royalties (ASX:DRR) said its fiscal fourth quarter portfolio revenue was AU$64.1 million, down from AU$80.4 million in the same period last year, according to a Tuesday Australian bourse filing.

The company reported iron ore revenue royalties of AU$61.8 million for the quarter ended June 30, up from AU$60 million a year earlier, while capacity payments declined to AU$2 million from AU$20 million in the prior corresponding period, the filing said.

The company said construction at Thacker Pass is advancing at full pace, with more than 95% of engineering complete, procurement over 70% finished, and first lithium carbonate equivalent production on track for late 2027, supported by the $1.21 billion in advances received under the US Department of Energy's $2.23 billion loan.