Metlen Energy & Metals S.A. operates in metallurgy, sustainable engineering solution, renewables and storage development, and power and gas sectors in Greece, the European Union, Hellas, and internationally. The company engages in the development and contract of solar and energy storage projects. It is involved in contract of specialized large-scale integrated turn-key projects; and provision of photovoltaic construction; and environmental solutions for water and waste management, pollution prevention, energy, and air emissions. In addition, the company produces and supplies energy and electricity solutions. Further, it supplies natural gas and other energy products. Additionally, the company engages in alumina and aluminum, as well as recycled aluminum and zinc. Furthermore, it is involved in trading of metals, which comprises of aluminum alloys and other products. The company was formerly known as Mytilineos S.A. and changed its name to Metlen Energy & Metals S.A. in June 2024.Metlen Energy & Metals S.A. was founded in 1908 and is headquartered in Athens, Greece.