Boliden Kokkola leaching tank accident

| Source: Boliden AB
Following a tank breakdown July 25, 2014, the production at the Boliden Kokkola
zinc smelter is reduced due to repairs and inspections in the hot leaching
“The accident did not result in injuries or environmental consequences. It was
however severe and we are very concerned. We are now continuing to analyze the
incident, evaluate the damage and verifying the inspection and repair work. Our
estimation is that we will back in full production in September,” says Jarmo
Herronen, General Manager Kokkola.

The accident in which one of Boliden Kokkola’s six hot acid leaching tanks broke
down, has reduced zinc production to 85 per cent of its capacity during
inspections and repairs. The silver recovery plant, which was recently
commissioned, is fed with material from the hot acid leaching tanks and will
consequently not be in production until the tanks are in operation again. The
financial consequences from lost production and cost of repairs are estimated to
be 7 MEUR and will impact the Group’s third quarter EBIT.

For further information, please contact:

Marcela Sylvander, Group Communication, +46 733 244551
Sophie Arnius, Investor Relations, +46 70 590 8072

Boliden is a metals company with a commitment to sustainable development. Our
roots are Nordic, but our business is global. The company’s core competence is
within the fields of exploration, mining, smelting and metals recycling. Boliden
has a total of approximately 4,800 employees and a turnover of SEK 34 billion.
Its shares is listed on NASDAQ OMX Stockholm, segment Large Cap.