Midtier miner Iamgold produced 231 000 oz in the fourth quarter of 2018, bringing the year’s production to 882 000 oz, comfortably meeting its guidance of 850 000 oz to 900 000 oz. In a preliminary production announcement, the company said on Wednesday that it had a record production year at its Essakane mine, in Burkina Faso, which produced 405 000 oz in the year.