Toronto, Ontario--(Newsfile Corp. - May 10, 2021) - Avalon Advanced Materials Inc.(TSX: AVL) (OTCQB: AVLNF) ("Avalon" or the "Company") is pleased to provide an update on recent developments on its 100% owned Separation Rapids Lithium Project located near Kenora, ON and on lithium markets generally. As recently reported by Benchmark Minerals...