Sustainable Development Report 2019

Key Challenges / Impacts [GRI 103-1a] [GRI 102-15] Major risks [GRI 102-15] • In the Metallurgy sector, the impacts of the Company's primary products on health and safety are related to the final use of the secondary products to result from its manufacturing clients. The Company is committed to ensuring the optimal quality of the products it offers (alumina and primary alumin- ium), in accordance with the expectations and requirements of its clients. • In the EPC & Infrastructure Projects sector, in addition to taking into account the internationally applicable regulations on the design of all manufacturing projects, the Company monitors in detail their quality metrics and characteristics from the supply of materials, industrialization and their assembly / integration into a final product, in order to ensure that the stated require- ments of the clients are met. • In the Electric Power sector, it is very important for MYTILINEOS to ensure the maximum possible availability of its thermal plants for the generation of electric power, as well as the con- tinuous improvement of the quality of the energy supplied and of the services accompanying it, while at the same time taking advantage of new developments in such areas as electromobil- ity, energy efficiency and net metering. Any deviation from the quality specifications of the Company's products and services affects its responsible operation, which in turn impacts on its customers' satisfaction levels, its good reputa- tion and credibility and, by extension, its financial results. Risk Management / Control Practices [GRI 103-2a] All Company's Business Activity Sectors apply an ISO 9001/2018 certified Environmental Management System, which is supported by individual Quality policies specific to each Sector. • In the Metallurgy sector, the Company's laboratories, whose role in the quality program is pivotal, systematically control all production stages, from raw materials to finished products. In this respect, the officially issued Safety Data Sheets (SDS) describe the risks associated with the product as well as all necessary precautions which must be taken to avoid these risks. The Company is committed to take steps to ensure the best quality in its products, in response to the expectations and requirements of its clients, providing them with products (alumina and primary aluminium) and related services that fully meet their quality requirements. Moreover, the sector's activities have been aligned with the provisions of the EU “REACH” Regulation on the effective management of the chemical substances used in industrial processes, while methodologies for the identification and analysis of operational risks as well as of opportunities for improvement, such as risk assessment, are also applied in the framework of ISO 9001/2015. Finally, the sector's quality control laboratory has been accredited by the • In 2019, there were no cases of non-compliance with regula- tions and voluntary codes related to the impact on health and safety of the MYTILINEOS products and services. [GRI 416-2] • In the Metallurgy sector, where labelling requirements apply to the products for sale, for every consignment of aluminium, a “Certificate of Conformity” states compliance with the spec- ifications. In addition, other certificates are issued, with the necessary information, in particular as regards substances that may have an environmental or social impact. • In the EPC & Infrastructure Projects sector, the Company's projects are in full agreement with the terms of the respective contracts and with the Company's contractual obligations to its customers, to whom all Health, Safety and Environment related information is delivered, such as: (a) Use, maintenance and dis- posal instructions for the entire equipment and for all materials supplied (Operation & Maintenance Manuals), (b) clearly visible labelling of all materials and equipment (trademarks, warnings and related instructions), and (c) instructions for use-recycling, in the form of Material Safety Data Sheets (MSDS) for all haz- ardous materials. Results [GRI 103-3a-ii] Management Approach [GRI 102-11] [GRI 103-2c] The purpose of this disclosure is to provide MYTILINEOS' Stakeholders with access to information on the steps that the Company takes in order to safeguard the quality of its products so that they are safe, irrespective of the existence or otherwise of legal and regulatory safety requirements. [GRI 103-2b] Customer Health & Safety Materiality assessment process results. Scale: [0—4] where 0 “Not significant” and 4 “Very significant” Impact on Sustainable Development 2,30 Significance for Stakeholders 3,58 Hellenic Accreditation System S.A. (ESYD) in accordance with the requirements of the ISO 17025:2005 International Standard, for the chemical analysis of bauxites, alumina and aluminium and its alloys. • In the EPC & Infrastructure Projects sector, in all stages of the manufacturing process the strictest international quality criteria and the requirements of specialized international specifications and codes are applied, in order to ensure the quality of the heavy and/or complex metal structures, engineering and indus- trial projects which the sector undertakes to produce. For every construction project undertaken by the Company and prior to the start of construction, a Hazard and Operability Study (HAZOP) is carried out. The purpose of this study is to identify and resolve any issues which may represent risks to personnel or equipment and which have not been identified at the project study and design stages. • In the Electric Power and Gas Trading sector, the target is to ensure the reliable supply of electricity on the Network (ADMIE) and natural gas to businesses, professionals and households, meeting the customers' needs for competitive prices through a range of specially configured, modern and reliable energy conservation procedures, advices & services. Boundaries of the Material Issue [GRI 102-46] [GRI 103-1b] Issue of increased significance to: Where the impacts occur: Impacts can occur in the areas where MYTILINEOS operates as well as in the areas of activity of its corporate customers who market the Company's final products for use. The management of the topic by MYTILINEOS contributes to the Sustainable Development: • Employees • Regulatory bodies • Academic community • NGOs • Customers • Suppliers • Shareholders • Media representatives in the context of their cooperation with MYTILINEOS. • Protection of the consumers' health and safety when using products and services. By whomare the impacts caused: Impacts are caused by the Business Activity Sectors of MYTILINEOS, its subsidiaries and the Company's corporate customers. 129 128

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