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Grecian Magnesite S.A. is a privately held (Portolos family, since 1959) Greek miner and processor of magnesite.
Privately held, family-controlled since 1959 (Portolos family; Managing Director Dimitris G. Portolos), no GLEIF LEI record found for the company, and as a private firm it discloses no shareholder register — stake percentages are not publicly disclosed. Grecian Magnesite is not itself a subsidiary of any group in this corpus; no parent_slug is set.
Named counterparties identified by open-source research and written only where a primary source states the relationship — never inferred from sector or co-mention. 1 customer-side. This is a partial view: it covers the relationships we could evidence, not the company's full supply base.
Company news page describes GDCI India Pvt. Ltd. as its local partner in India; a 16-20 March 2026 joint customer-visit tour across Rajasthan focused on the emery-stone industry and the 88C/SK MgO grade. The page excerpt seen does not itself use 'exclusive distributor' wording, so distributor status is not confirmed.
Scope. Absence of a counterparty here is not evidence that none exists — most commercial sourcing is confidential and never becomes public. Rows without a share figure mean no share was disclosed, not that the relationship is small.
This company sits on the supply side for 1 of its 1 materials — a restriction on those is a tailwind, not a headwind.
No actions in the register have named or swept this company in the last 24 months.