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Molymet — Molymex, Cumpas, Sonora, Mexico

Molymex S.A. de C.V. · Mexico
Mexicomolybdenumrefiningconcentrate cleaningconcentrate roastingtechnical molybdenum oxide productionbriquettingrhenium recoverysulphuric acid productionChecked 9 November 2026 · source dated 2020 HIGH
Who
Molymex S.A. de C.V.
Molibdenos y Metales S.A. (Molymet), acquired 1994
What
molybdenum — concentrate cleaning, concentrate roasting, technical molybdenum oxide production, briquetting, rhenium recovery, sulphuric acid production
Capacity Nameplate capacity
28 million lb/yr Mo processing capacity (approx. 12,700 t/yr Mo)
Status
Operating
Actual output
Gated — subscribe to see actual output
Who they sell to
Gated — subscribe to see offtake agreements
Notes
Mexico's only molybdenum processing plant of its kind, on a 40.8 ha site at Km 29 of the Moctezuma-Nacozari highway. The 2020 annual report records a prolonged suspension of operations that year, with feed redirected to Molymet's Chilean plants; the plant is listed as an active production facility in Molymet's current global-presence pages. Products stated: technical molybdenum oxide (powder and briquettes); rhenium concentrate; sulphuric acid

Proof

Checked 9 November 2026 · source dated 2020
  1. https://molymet.com/en/presencia_mundial/molymex/
  2. https://molymet.com/memoria-anual-2020/eng/static/pdfs/Molymet_ENG_Ch4.pdf
  3. https://www.molymet.de/en/firmengruppe
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