Supplier · Greece

Metlen Energy & Metals

Updated Oct 19, 2026HQ Athens, GreeceFounded 1990

Greek industrial group that runs the Aluminium of Greece smelter and refinery and plans a gallium plant there.

News1

Capabilities
Technology	Role	Maturity	TRL	Notes	Confidence
Advanced manufacturing and materials	Supplier	—	—	Run 97, reviewed AI classification, taxonomy 2026-10-18b: The official company page describes an energy and metals group that also invests in defense solutions. Source: https://www.metlen.com/who-we-are/metlen-company/	Reported
Power, grids and energy storage	Supplier	—	—	Run 97, reviewed AI classification, taxonomy 2026-10-18b: The official company page describes an energy and metals group that also invests in defense solutions. Source: https://www.metlen.com/who-we-are/metlen-company/	Reported

Advanced manufacturing and materials
Supplier
Run 97, reviewed AI classification, taxonomy 2026-10-18b: The official company page describes an energy and metals group that also invests in defense solutions. Source: https://www.metlen.com/who-we-are/metlen-company/
—Reported
Power, grids and energy storage
Supplier
Run 97, reviewed AI classification, taxonomy 2026-10-18b: The official company page describes an energy and metals group that also invests in defense solutions. Source: https://www.metlen.com/who-we-are/metlen-company/
—Reported

Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.

Inputs produced
Input	Relation	Criticality	Capacity	Global share	Facility	Confidence
Gallium	Develops	Critical	50 tonnes/yr gallium	—	—	Confirmed

Gallium
Develops · 50 tonnes/yr gallium
Planned plant at Aluminium of Greece; EUR 295.5M investment.
CriticalConfirmed

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DatabaseMetlen company profile
Octen Business Search · Supports Organization · linkedin url
“linkedin_url: https://www.linkedin.com/company/metlengroup (profile: https://gr.linkedin.com/company/metlengroup)”
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CompanyContact Us - Metlen
Supports Organization · hq city
“8 Artemidos Str. Maroussi, 15125 Athens”
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CompanyMetlen Energy & Metals - company
Supports Organization · founded year, Organization · sector classification
“The company was founded as MYTILINEOS Group in Greece in 1990, as an evolution of the old metallurgical family business that had been operating since 1908.”

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CompanyMetlen briefs LME executives on metals operations and gallium investment during visit to Aluminium of Greece
Metlen · Dec 4, 2025 · Supports Organization, Organization input
“the production of 50 MT of gallium per annum. The total strategic investment of €295.5 million”

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.