Energy & Air emissions

Policies and commitments

  • Responsible use of energy and other natural resources and addressing climate change, in accordance with Metlen’ Environmental Policy.
  • Voluntary participation of Metlen in the global Sustainable Development Initiative CDP (Carbon Disclosure Project) – Climate Change, expressing its commitment to responsible management of potential risks related to climate change in its activity.
  • Set and achieve ambitious targets:
    i. of reducing CO2 emissions by 30% by 2030 and
    ii. achieving a Net-Zero footprint by 2050.

Impacts and major risks


  • Recognises that the Company’s aluminium production and electric power generation from thermal plants, the use of products, and its supplies are the primary sources of energy consumption and carbon dioxide emissions that create an impact on the phenomenon of climate change and on-air quality.
  • Monitors gaseous emissions monthly and implements timely appropriate technical interventions to ensure that the respective annual emissions are below its statutory allowance and are maintained at the lowest possible level.
  • Focuses on energy savings with the implementation of a significant renewable energy investment plan, and on the implementation of initiatives to achieve the ambitious CO2 emission reduction and carbon neutrality targets, in 50% of its business activities, by 2030.

Major risks

  • Any deviations from the applicable legislation may cause additional air pollution and result in additional costs due to the need to purchase extra CO2 emission allowances, affecting the Company's financial results as well as its capacity to retain its existing customers, investors or business partners and attract new ones.
  • The transition and natural risks as described in the “Adaptation to Climate Change” section of this Report.

Management/Control practices

  • Closely follows the relevant developments in legislation and takes preventive measures to minimize any potential negative impacts.
  • Invests in renewable energy sources and in the use of digital industrial methods in all production stages, with the aim of saving energy, reducing dependence on fossil fuels and reducing gaseous pollutants.
  • Expands its activities in recycling aluminium scrap from end of-life products and, by acquiring the relevant know-how, greatly enhances its efforts to substantially reduce the use of raw materials (bauxite) and save energy.
  • Has aligned its activities with Best Available Techniques (BATs) in its production processes.
  • Ensures the proper maintenance and optimum operation of machinery in its industrial plants, while investing in their modernization introducing new technology equipment, where feasible.
  • Carries out checks of other pollutant emissions (NOx, Sox and particles) with continuous and periodic sampling measurements.
  • Measures to suppress diffuse dust are also taken, such aswater-spraying roads and raw materials, as well as tree-planting.

Effectiveness of the actions

  • -0,5% reduction of total energy consumption.
  • -6% reduction of total energy consumption from conventional energy sources (natural gas, fuel oil, diesel, gasoline).
  • 10,7% coverage of total domestic demand by total energy production.
  • -3,15% reduction of direct CO2 emissions (Scope 1).
  • -4,2% reduction of indirect CO2 emissions (Scope 2).
  • 55% increase of indirect CO2 emissions (Scope 3) due to individual increases in C1 categories: Purchased goods and services, C2: Capital goods and C11: Use of sold products.