The Auby smelter is located in the town of Auby in the north of France, approximately 35 kilometers south of the city of Lille. It is adjacent to the Canal de la Deule, which connects to the seaports of Calais and Antwerp, and is well connected to several motorways.
The Auby smelter is a mid-scale electrolytic zinc smelter. Unlike other zinc smelting sites, the Auby smelter produces cathodes as finished products for sale to its customers, rather than casting into ingots. Feedstock of both zinc concentrates and zinc secondaries is consumed at the plant using the RLE process to produce zinc cathode. The Auby smelter’s annual production capacity was increased from 130,000 tonnes to 160,000 tonnes during 2009 and to 172,000 in 2013. Auby smelter commissioned an indium metal production facility in May 2012.