Rönnskär in Skelleftehamn is one of the world's most efficient copper smelters. The plant receives deliveries of copper and lead concentrates from our own mines and from external suppliers. Today the smelter is a world leader in electronics recycling thanks to investments and developments in Kaldo technology. We extract primarily copper, gold and silver from these materials. Rönnskär is our biggest production unit and the biggest private employer in the region.

• Boliden is a high-tech metal company with its own mines and smelters that work over the long term to guarantee society's supply of base metals and precious metals through the mining of ore (minerals) and the production and delivery of high quality metals to industry.
• We search for new mineral deposits through exploration, both in the vicinity of our existing mines and in new areas. In this way, we contribute to secure the future of our business and take long-term responsibility for the supply of metals of the highest quality to society.
• We extract ore from open pits and underground mines. Thanks to modern technological developments, mining methods and our expertise in mining design, our production is of the highest class from drilling and blasting to loading and crushing.
• In our smelters we refine mineral concentrates from our own and other mines into pure metals. Thanks to our technical expertise and flexible processes, we can extract metals from complex raw materials and produce metals of very high quality. We are also the market leader in electronics recycling and lead recovery from car batteries.
• Our products are mainly zinc and lead ingots, copper cathodes, gold bars and silver granules, but also other products such as sulphuric acid and iron sand. The major part of our metals is transported by rail or sea to industrial customers throughout Europe.