Sidenor 2021 Sustainability Report. Non-financial information statement

59 Waste At Sidenor, we want to get the most out of the use of our resources, reusing and valorising, for example, the auxiliary materials used in the iron and steel industry. In this regard, we have implemented a circular economy model according to which we foster practices for the responsible management of our waste, with the aim to segregate, reuse, recycle and recover most of it. Based on this model, we are developing innovative practices through which we have been able to valorise a large part of our waste: white slag in cement production processes; steel mill dust in the zinc recovery industry; and mill scale in sintering plants for blast furnace iron and steel processes. The total waste recovered amounted to 142,660 tonnes (97,550 tonnes in 2020). Serious goals and challenges Recovery of: 90 % of our waste by 2025 95 % of our waste by 2030 Strong commitment to circular economy 2011 75 75 78 78 77 78 79 82 74 2012 2013 2014 2015 2016 2017 2018 2019 2020 87 87 2021 93 93 93 96 87 88 88 85 85 87 86 78 AZKOITIA VITORIA REINOSA BASAURI 2020 % of recovery by factory % of waste recovered In the last decade, we have increased our waste recovery rate by 16 % 2021 2019