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Background information

General information on Boliden's dam safety work

On April 26, 2019, Boliden received a letter from The Church of England Pension Board. The letter contained a request for a disclosure of how Boliden works with dam safety and a request to fill out a questionnaire in this regard. Corresponding letters/requests, have been sent by the Church of England Pension board to a number of major mining companies. The Church of England Pension Board in this case represents 96 major institutional investors. In the attached links are Boliden's report and the completed questionnaire validated by our CEO.

The 1998 dam breach at the Los Frailes mine in Spain

In April 1998, a dam breach accident occurred in the tailings pond at the Los Frailes mine in Spain, which was then owned by Boliden's subsidiary, Boliden Apirsa S.L. ("Apirsa"). Large and successful remediation efforts were carried out in the same year, however, legal disputes regarding the costs of these efforts remain.

More about the dam breach in Los Frailes

Deliveries of smelting residues to Chile during the mid 1980s

Between 1984 and 1985, Boliden delivered a total of approximately 20,000 tonnes of metallic residues from the Rönnskär smelter to the Chilean company, PROMEL, in the city of Arica. We wish to clarify Boliden's role regarding the deliveries and our position regarding the damages that may be attributable to the deliveries.

Information about smelting residues to Chile

For more information contact:
Olof Grenmark
Director Investor Relations


Boliden Head Office

Boliden Group
Klarabergsviadukten 90
P.O. Box 44, SE-101 20 Stockholm
Tel: + 46 8 610 15 00
Fax: + 46 8 654 80 90