In 2025, CMPC achieved its corporate Zero Waste to Landfill goal through the reduction of waste generation, increased valorization of by-products, and the strengthening of circular economy initiatives. During the year, 98% of non-hazardous waste was recovered or valorized, equivalent to approximately 3.03 million metric tons, while the Company exceeded its landfill reduction target relative to the 2018 baseline. Despite reaching this corporate goal, CMPC continues to promote waste prevention, resource efficiency, and circular business models as key elements of its sustainability strategy.

CMPC has advanced in the steps of the hierarchical strategy for waste management, which translates into the following order or prioritization: generation reduction, minimization, reuse, recycling, energy generation and finally disposal in authorized sites, with the corresponding environmental controls. 

Thus, the Company has implemented the CMPC Waste Strategy to “Ensure compliance with zero waste at final disposal in 2025, circularizing the Company’s processes in its transition to be a zero-waste organization.” Among the main elements of this strategy are the following focuses:

– Identify and comply with all environmental and sector regulations linked to waste management.

– Update, systematize and analyze environmental information on waste management generated by the company, continuously improving management. 

-Manage and prevent impacts associated with waste management in the organization, diversifying recovery services, specifically reduction, reuse and recycling offers. Connect synergies between different company processes.

-All initiatives implemented by the Company must be systematized through the Roadmap for permanent control and measurement, contrasting their results with the goals established. 

– Anticipate the future with innovative initiatives obtained through joint work with academia, replicating good practices at a global level, which aim at the implementation of new technologies, improvements in processes to reduce waste generation, optimization of contracts, which consider the elimination of inputs with a high ecological burden, among others.

Waste management regulations demand the implementation of hazardous waste management plans and other environmental management instruments that provide guidelines for the adoption of preventive measures. This strategy, which is proactive and goes beyond legal requirements, stipulates guidelines for all of the Company’s facilities to extend their management plans’ scope to include impacts of non-hazardous industrial waste.

CMPC implements this comprehensive Waste Management Strategy focused on waste prevention, resource efficiency, circularity, and the elimination of landfill disposal. A key component of the strategy is the development of the by-product concept, whereby materials historically classified as waste are evaluated for use as raw materials in other industrial processes, thereby reducing waste generation at source and promoting circular resource use. During 2024 and 2025, CMPC worked through the Chilean Forestry Association (CORMA) to advance sector-wide initiatives supporting the reclassification and productive use of priority waste streams across the forestry industry.

To support landfill reduction and waste recovery, the strategy promotes the diversification of authorized waste valorization partners and establishes a systematic monitoring process to verify environmental compliance and operational performance. Service providers are selected through a qualification process that includes regulatory compliance reviews, environmental due diligence, site inspections, verification of environmental control measures, and monitoring of environmental enforcement actions.

CMPC has also established a dedicated Waste Management Working Group under the coordination of the Waste, Emissions and Compliance Department. This team is responsible for implementing the Corporate Waste Strategy, monitoring waste performance indicators, coordinating reporting processes, ensuring regulatory compliance, and identifying opportunities to reduce waste generation and increase material recovery rates across operations.

Results and achievements

In 2025, CMPC recovered or valorized approximately 3.03 million tonnes of non-hazardous waste, equivalent to 98% of total non-hazardous waste generated, while reducing final disposal to less than 54,000 tonnes across its operations. These results enabled the Company to achieve its corporate Zero Waste to Landfill goal and further strengthen its circular economy strategy.

Softys significantly improved its waste recovery performance in 2025, increasing non-hazardous waste valorization by 24% compared with 2024, reaching 436,611 tonnes. At the same time, waste sent to final disposal decreased by approximately 79%, supported by expanded recycling, composting, and energy recovery initiatives that strengthened circularity across its operations.

The Pulp business achieved a record of 2.38 million tonnes of non-hazardous waste valorized in 2025, representing more than 99% of total non-hazardous waste generated. Disposal volumes decreased by 26% compared with 2024, driven by strong performance in recycling, composting, energy recovery, and beneficial reuse.

As for Biopackaging, this business line continued advancing resource efficiency and circular economy practices, valorizing 222,131 tonnes of non-hazardous waste in 2025. Recycling volumes increased by 23% year over year, while energy recovery and beneficial reuse initiatives contributed to maintaining low disposal rates and improving overall waste management performance.

In summary, several waste reduction and circularity initiatives in 2025 were implemented across CMPC, diverting significant waste flows from landfills. These included: 

• The valorization of pulper rejects through recycling, composting, and energy recovery; 
• The use of biomass ash as a raw material in cement manufacturing; 
• The conversion of pulper waste into alternative fuels for cement kilns; and 
• The diversion of wastewater treatment sludge from landfill to external treatment and recovery processes.

Key Waste Management and Valorization Initiatives per Business Line (2025)

CMPC implements environmental management systems in its facilities, a framework in which audit processes are conducted to review the processes linked to waste management and identify potential risks and opportunities. Audits of waste management processes involve reviewing legal compliance and efficiency in operational controls. Additionally, a systematic review of socio-environmental risks linked to waste management of the facilities is carried out. 

Find out more about our waste-related initiatives in our Sustainability Report 2025.

Waste management training

All new employees receive an induction covering all areas under the GEMASS (Environment, Occupational Health and Safety Department). This includes the CMPC Waste Strategy, which incorporates a hierarchical approach to waste management as one of its key workstreams.

Additionally, an environmental training program was implemented for all employees under the Environment, Occupational Health and Safety Department, aiming to strengthen environmental knowledge and promote internal mobility within the management team. The program consists of 13 environmental modules made available through the Mi Fibra platform for staff, which include training sessions on waste management and local legislations (Ley REP N° 20.920). All training materials are delivered through a digital platform.

According to international guidelines and consensus (Zero Waste International Alliance, EPA, WRI, Europe Zero Waste, among others), the concept of “zero waste to landfill” refers to a deviation towards recovery treatments of at least 90% of the waste sent to landfills, controlled disposal areas or dumps with respect to a baseline. Therefore, it is expected to reduce by at least 90% the amount of solid waste sent to any of these disposal facilities with respect to the established base year.