Lakes Limestone Trade Down in September

Shipments of limestone on the Great Lakes totaled 3.3 million tons in September, a decrease of 11.5% compared to 2024.  Limestone cargos were also below the month’s five-year average by 6%.

Loadings from U.S. quarries decreased 13.5% from last year to 2.7 million tons.  Shipments from Canadian quarries totaled 663,144 tons, a decrease of 2.3%.

Year-to-date, the limestone trade stands at 19.6 million tons, a decrease of 5.8% compared to 2024.  Loadings from Michigan and Ohio quarries decreased 4.2% to 16 million tons; while shipments from Ontario quarries decreased by 12.3% to 3.6 million tons.