Company: SUZ
Filing Date: 2025-04-28
Form Type: 20-F
Source: 0001628280-25-020368
Chunk: 95

Company: Suzano S.A.
Filing Date: 2025-04-28
Form: 20-F
Item: Item 4
Chunk 95
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 pulp and paper production are described below.

Wood

We use fibers from three primary sources for the production of our paper: (i) our pulp; (ii) recycled paper; and (iii) mechanical pulp. Recycled paper and mechanical pulp are used in the interior layers of certain types of paperboard. We use eucalyptus trees for the production of all of our pulp.

The management of our planted forests is a key resource for wood. For further information, see “ Item 4. - Business Overview - Our Company - Pulp and Paper - Planting and Harvesting Forests.”

Energy

Our energy matrix is predominantly renewable, with biomass (classified as an energy resource in the forest energy biomass categories) serving as the primary source. The majority of our energy generation is derived from black liquor, a by-product of the pulp manufacturing process, produced through the kraft chemical recovery process utilized in our mills. This black liquor is burned in chemical recovery boilers, contributing significantly to our steam generation.

As secondary energy sources, we utilize bark, wood chips, and wood waste in our processes. These materials are used as complementary fuels to meet the energy requirements of our operations and are burned in auxiliary boilers. Consequently, our chemical recovery process enables us to generate energy in an environmentally friendly manner.

A substantial portion of our energy consumption is supplied by our own electricity generation. Several of our industrial plants are self-producers of energy, consuming the energy generated on-site and exporting surplus energy to the Brazilian national grid. The plants that produce 100% of the energy they consume include Mucuri (BA), Imperatriz (MA), Três Lagoas (MS), Veracel (BA), and our new factory of Ribas do Rio Pardo (MS).

Surplus energy from self-producing plants is allocated to other locations with energy deficits through contracts accounted for at the CCEE (Brazilian Energy Compensation Chamber).

We have undergone the certification process to issue the I-REC (International REC Standard) based on the renewable energy generated by the Três Lagoas (MS) industrial unit. This certificate represents the renewable generation attributes of one megawatt-hour (MWh) of energy produced from biomass and can be sold by the generator on the electricity market. In 2024, we commercialized a total of 337,915 I-RECs.

Table of Co ntents

We also invest in energy efficiency and research and innovation, aiming to increase renewable energy generation by optimizing the use of our own resources. Over the years