ArcelorMittal (MT) to Ramp Up Iron Ore Output in Liberia Posted byZacks Equity Research September 16, 2021 Leave a comment on ArcelorMittal (MT) to Ramp Up Iron Ore Output in Liberia ArcelorMittal (MT) and the Liberian government amend the existing MDA to ramp up mining operations in the country and economically uplift the nation.