Cellnex’s Whistleblowing Channel allows both internal and external stakeholders, including any third party, wishing to report concerns about unlawful behaviour or infringements that disobey the current legislation and/or other internal regulations within the company. The reporting mechanisms are accessible via multiple channels, including the Cellnex Intranet, email, mailing address and telephone, ensuring that individuals can easily raise concerns from anywhere in the world. The Whistleblowing Channel is managed by an independent expert third party, PricewaterhouseCoopers (PwC), acting as Channel Manager and ensuring confidentiality and impartiality of the process. The Channel Manager receives the initial communication and guarantees that it is transferred to the Committee of Ethics and Compliance (CEC) in due time. The CEC as the decision-making body, will investigate and adopt a final resolution that closes the procedure. The Channel Manager will then be responsible for communicating the resolution to the whistleblower in due time and form. To promote the use of the Channel, Cellnex has implemented extensive training, communication and awareness initiatives. These efforts ensure that all employees are fully informed about the existence, purpose, and proper use of the Whistleblowing Channel. In addition, employees receive training on the process of submitting communications and on the importance of raising ethical issues promptly. The commitment to training extends to the staff receiving the reports, who are prepared to handle concerns professionally, following legal guidelines and internal protocols.

Cellnex integrated ESG and risk management into its supply chain in 2022, in accordance with its ESG Master Plan. This involved a collaborative effort of various departments, such as Health & Safety, Legal, Security, ESG, Environment and Climate Change, Quality and Procurement in order to define a comprehensive model.

The collaboration between these departments was centred on risk definition, supplier's categorisation, and on the configuration of a model that could include ESG questions and risk management in the following processes: supplier onboarding, qualification, sourcing, and contracts, and evaluation.

This approach ensures the mitigation of potential risks on the supply chain and fosters its alignment with Cellnex's ESG objectives.

Additionally, Cellnex categorises its suppliers into three tiers based on the company's annual expenditure on purchases and on the criticality of the services that they provide.

• Tier A (critical suppliers), includes suppliers with annual purchases over €5,000,000, or those delivering critical services for business continuity.
• Tier B, includes suppliers with annual purchases between €500,000 and €5,000,000.
• Tier C, includes suppliers with annual purchases below €500,000.

In 2024, the group qualified its critical suppliers, covering 65% of the total spent.

In this regard, we can highlight Cellnex Italy, since strategically extends its commitment to values and a sustainable culture across the entire supply chain. The company seamlessly integrates supplier evaluation, selection and monitoring with the assessment of ESG requirements, thus reinforcing its dedication to sustainability.

Cellnex's selection of suppliers for audit aligns with the ESG risk level, considering factors such as the supply's nature, certifications, dedication to social and environmental responsibility, and an assessment of the supplier's environmental, health and safety, and service quality.

In 2024, Cellnex invested €26,000 in the CDP Supply Chain programme to promote transparency and encourage collaboration with suppliers to reduce emissions. The company invited a total of 272 suppliers, of which 81% responded. In addition, Cellnex offered a Supplier Support Programme with an investment of €10,100 to improve the quality of emissions data provided by its partners.