- Seismic activity in March caused major damage to the upper Lappberget ore body at Garpenberg.
- Boliden will write down SEK 700m of affected underground developments, mining assets and mobile equipment.
- Stopped production will cut Q1 2026 EBITDA by about SEK 400m and negatively affect operating profit.
- Damage includes ventilation, compressed-air, water management, electrical infrastructure and backfill paste systems.
Incident
Abnormal seismic activity in March caused major damage at the Garpenberg mine, with the upper parts of the dominant Lappberget ore body particularly affected; the mine comprises three separate ore bodies.
Operational damage
Significant damage was reported to ventilation and compressed-air systems, water management, electrical infrastructure, backfill paste systems and some mobile equipment, requiring stoppage of affected production areas.
Financial impact
Boliden will write down the book value of impacted underground developments, mining assets in upper Lappberget and mobile equipment by SEK 700m, which will negatively affect operating profit in Q1 2026.
EBITDA effect
As stated in an earlier press release on March 25, 2026, the production stoppage will reduce first-quarter EBITDA by approximately SEK 400m.
