Aim-listed Andrada Mining, which owns operations in Namibia, has announced a 14% quarter-on-quarter increase in saleable tantalum concentrate production to 9 t for the quarter ended May 31, which is the first quarter of its 2025 financial year. In its quarterly operational update released on June 21, the company reported a year-on-year increase in ore processed to 237 976 t, from the 217 189 t of ore processed in the quarter ended May 31, 2023.