Sustainability Topic: Materials

301–1  Materials used by weight or volume

Levels of mined rock and milled ore in 2019 have increased since previous years while smelting materials and concentrates produced have slightly decreased. Boliden has included tonnages of rock, ore and concentrates in the material used in its reporting. Other materials specified in the table include e.g. fuels, explosives and chemicals used in production processes.

Some of the concentrate produced in the mines is sold to external parties. The total smelting material feed comprises concentrates both from Boliden’s own mines and from external mines, purchased secondary materials, and secondary materials sent from one smelter to another.

Materials are mostly weighed in connection with loading and/or charging (ore, concentrates, and most smelting materials). The mined rock figure is based on calculations (waste rock and ore). A minor part of input materials is calculated from input and stock.

Materials used by weight, 
(k metric tons)

2017 

2018 

2019 

       

Mined rock

110,256

112,392

116,207

Whereof milled ore

55,000

54,000

56,000

Whereof concentrate produced

1,388

1,361

1,252

Smelting materials1)

2,656

2,742

2,628

Other materials

1,174

1,077

1,268

Whereof non-renewables

154

162

159

1) Adjusted calculations.

 

301–2  Recycled input materials used

Boliden uses its own and other companies’ by-products and residues for the extraction and recycling of metals. The Boliden Rönnskär smelter began using a new electronic scrap recycling ­facility in 2012, making Boliden among the world leaders in e-scrap recycling. Boliden Bergsöe, which recycles about 70,000 metric tons of lead acid from batteries and about 5,000 metric tons of other lead scrap per year is, furthermore, the only secondary lead smelter in the Nordic region.

Metals can be recycled endlessly without any deterioration in their quality and it is important that electronic materials and scrap, such as telephone cables, copper roofs and copper pipes, from the demolition or construction of buildings and infrastructure is re-utilized to as high a degree as possible. The smelters Rönnskär and Bergsöe recycle the most amount of metals in Boliden, in total 17% of their base metals and 24% of their precious metals are recovered from secondary metals.

The recycling input rate (RIR) shows the fraction of secondary materials in the total input to Boliden Smelters. Recycled materials include secondary materials from external sources and secondary materials sent from one plant to another within the Group. By-products and non-product outputs recirculated internally at the sites, and slag sent from smelters to mines, are not included.

Percentage of recycled
materials (metric tons)

2017

2018

2019

       

Total secondary feed1)

341,800

348,500

347,100

Total feed1) (primary and secondary)

2,656,000

2,742,000

2,628,000

Recycling rate

13%

13%

13%

1) Adjusted calculations.