Australian Lithium Miner Ioneer Eyes Bid for Rio’s US Boron Unit

Australian mining firm Ioneer Ltd. is interested in bidding on a bundle of Rio Tinto Group’s US assets that produce boron, a critical mineral used in fertilizer, according to its...

By Jacob Lorinc · Bloomberg Markets

Australian mining firm Ioneer Ltd. is interested in bidding on a bundle of Rio Tinto Group’s US assets that produce boron, a critical mineral used in fertilizer, according to its top executive.