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To reduce environmental impacts from its operations, Suzano manages atmospheric emissions in compliance with current legislation, including regulations from the National Environmental Council (CONAMA) at the federal level, as well as the necessary environmental licenses. Additionally, standards from the Integrated Pollution Prevention and Control (IPPC) and the International Finance Corporation (IFC) are used as internal benchmarks.

The company maintains an environmental management system with specific controls and monitoring procedures for atmospheric emission sources. The plants with the highest production capacity are equipped with continuous atmospheric emission analyzers, and all units conduct monitoring campaigns at fixed sources. Additionally, the industrial units operate Air Quality Monitoring Stations that continuously evaluate compliance with legislative standards.

Data and information from each industrial unit's historical monitoring series are recorded and regularly reported to the relevant state environmental agencies, in accordance with licensing conditions. Beyond legal obligations, this database and its contents are integral to the ISO 14001:2015 Quality Management System. They are verified through internal and external audits conducted by independent certifying bodies.

Our operations do not produce persistent organic pollutants (POPs), volatile organic compounds (VOCs), or Hazardous atmospheric pollutants (HAPs) because the fuels and chemicals used in pulp and paper production do not emit these substances. There are no specific targets set for reducing atmospheric emissions.

 

Total reduced sulphur performance 

In 2025, atmospheric emissions of total reduced sulfur compounds (TRS), measured by load, increased by 228% compared to 2024. Specifically, the emissions were 0.07 kg/t, up from 0.02 kg/t in 2024. Despite the rise, these figures remain below the international standards set by the European Commission's 2015 Integrated Pollution, Prevention and Control guidelines, which define the optimal performance range as between 0.1 and 0.2 kg/t.

The result shows the acquisition of the Suzano Packaging unit, which still lacks the same technologies as the Brazilian units. However, it's important to note that the US unit's results meet the country's current environmental regulations.

Through the adoption of modern technologies, pollution prevention and control procedures, dedicated environmental teams, training, capacity building, and maintenance programs, Suzano has achieved notable environmental improvements, specifically in reducing odor perceptions in the communities surrounding its industrial sites in Brazil.

 

Particulate matter performance 

Particulate matter (PM) emissions in the atmosphere increased by 49% in 2025 compared to 2024. This rise is due to the acquisition of the Suzano Packaging unit and the operation of the Ribas do Rio Pardo unit. In terms of kilograms of PM per ton of product, the indicator reached 0.61 kg/t in 2025, up from 0.48 kg/t in 2024. These figures are slightly above the international standard range set by the European Commission’s Integrated Pollution Prevention and Control 2015, which considers 0.2 to 0.5 kg/t optimal.NOx performance 

In terms of the load of nitrogen oxides (NOx) released in atmospheric emissions, there was a 24% increase in 2025 compared to 2024. In specific terms (kilograms of NOx per ton of product), Suzano had a result of 1.2 kg/t in 2025, compared to 1.1 kg/t in 2024. The result falls within the reference range of the international standards established by the Integrated Pollution Prevention and Control 2015 - European Commission, which indicates that results between 1.0 and 1.5 kg/t represent the best performance.

 

SOx performance 

In terms of the load of sulphur oxides (SOx) released in atmospheric emissions, there was a 2% reduction in 2025 compared to 2024. In specific terms (kilograms of SOx per ton of product), Suzano saw a reduction from 0.14 kg/t in 2024 to 0.12 kg/t in 2025. The values are below the reference range of the international standards established by the Integrated Pollution Prevention and Control 2015 - European Commission, which indicates that results between 0.2 and 0.4 kg/t represent the best performance.

Atmospheric emissions¹ ²

202020212022202320242025
t t t t t t

Total reduced sulphur (TRS)²

233,27

229,79

180,60

338,80

279,10

914,67

Particulate matter (PM)

4.548,90

4.493,31

5.667,04

5.916,50

5.770,80

8.590,47

NOx

14.167,44

14.328,26

13.853,86

15.611,70

13.306,80

16.457,66

SOx

2.751,62

2.199,23

2.518,75

1.741,50

1.688,60

1.662,66

Volatile organic compounds (VOCs)⁴

n/d

n/d

n/d

n/d

n/d

n/d

Hazardous atmospheric pollutants (HAP)⁴

n/d

n/d

n/d

n/d

n/d

n/d

Persistent organic pollutants (POPs)⁴

n/d

n/d

n/d

n/d

n/d

n/d

Halogen⁴

n/d

n/d

n/d

n/d

n/d

n/d

Methyl tert-butyl⁴

n/d

n/d

n/d

n/d

n/d

n/d

  1. The indicators are derived from isokinetic measurements for each pollutant, following internationally accepted methodologies such as those of the United States Environmental Protection Agency (EPA). The reported atmospheric emissions pertain solely to fixed sources within the industrial process. 
  2. Suzano does not emit mercury in its industrial processes. For this reason, there are no reduction of targets for these elements, as these emissions are already nonexistent in the company's operations.
  3. The formation of TRS compounds is typical in pulp manufacturing, encompassing the wood cooking stage as well as the concentration, burning, and recovery of liquors.
  4. Suzano's operations do not emit these pollutants because the fuels and chemicals used in the process do not produce them. 

Informações complementares

All fluctuations in 2025 relate to the operation of the Ribas do Rio Pardo unit and the Suzano Packaging acquisition.