Metsä Board Sustainability Report 2022

Waste and by-products

E S G

We invest in resource efficiency so that there is no waste in pulp and board production. In this way, we reduce waste.

Indicators and progress

We aim to make 100% use of all production side streams to ensure our processes do not generate any landfill waste after 2030.

In 2022, we utilised 99.9% (99.8) of our side streams: 55% were reused as materials, and 45% in energy production.

UTILISATION OF PRODUCTION SIDE STREAMS %

100

90

80

70

18 19 20 21 22

TARGET 2030

Our operations

Waste and by-products Our production side streams consist of by-products generated in our production, including ash used as fertiliser and recov- ered lime fractions, as well as process waste such as green liquor dregs and other types of sludge. Our operations also generate hazardous waste and municipal and construction waste. We improve our recovery methods continuously, so as not to generate waste in the production of pulp and paperboard. We are also seeking new ways to reuse production side streams and use organic waste for energy production. Our biggest challenge is to find applications for the green liquor dregs generated in pulp production, and we are actively exploring solutions for its utilisation. In 2022, our operations generated a total of 36,063 tonnes of by-products and 134,587 tonnes of waste. Our target of using 100% of our production side streams covers all by-prod- ucts and 96.4% of non-hazardous waste in 2022.

WASTE USE AND DISPOSAL

On-site, t Off-site, t

Total, t

Process waste (non-hazardous waste) Material utilisation

18,009 57,696

36,921 16,060

54,930

Energy recovery

73,756

Landfill

54

76

130

Other non-hazardous waste Material utilisation

4,611

4,611

Energy recovery

167

167

Landfill

33

33

Hazardous waste Material utilisation

142

142

Energy recovery

14

14

Incineration without energy recovery

736

736

Landfill

5

5

Other disposal *

64

64

* Disposal and treatment of waste other than landfill. The amount also includes repacking and pre-processing before disposal.

WASTE AND BY-PRODUCTS 2022, t

By-products ������������������������������������������������������� 36,063 Process waste (non-hazardous waste) ��������� 128,816 Other non-hazardous waste �������������������������������� 4,811 Hazardous waste ����������������������������������������������������� 960

21

METSÄ BOARD SUSTAINABILITY REPORT 2022

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