MT Newswires -ShutterstockAustralian shares were flat with a negative bias on market close on Thursday, as the US Federal Reserve held interest rates steady on Wednesday. The Federal Reserve kept interest rates unchanged on Wednesday, and its chief Jerome Powell said the "economy has once again surprised us with its strength." On the domestic front, Australia's export prices rose 3.2% in the December 2025 quarter after a 0.9% decline in the September 2025 quarter, while import prices rose 0.9% after a 0.4% decrease in the previous quarter. In company news, Mineral Resources' (ASX:MIN) fiscal second-quarter production volume reached 85 million wet metric tonnes (wmt), up from 68 million wmt a year earlier. Lastly, IGO (ASX:IGO) posted sales revenue of AU$82.4 million in the second quarter ended Dec. 31, 2025.