Cuba's Ministry of Energy and Mines (MINEM) closed the Castellanos-Santa Lucía polymetallic (several-metal) concession fully and temporarily until 30 January 2027, in resolutions published in Gaceta Oficial No. 91 on 2 October1. The same gazette ended seven other mining concessions. Treasury designated Cuba's state nickel-mining monopoly in August.

Cuba halts one mine and ends seven more
The Ministry of Energy and Mines closed the Castellanos-Santa Lucía polymetallic concession until 30 January 2027 and ended seven other mining concessions.
Cuba closed one mining concession until January 2027 and ended seven others.
Deep Analysis
Cuba grants companies concessions: permission to explore for minerals or dig them out in a set area. In a government gazette published on 2 October, Cuba's Ministry of Energy and Mines let a joint venture called Minera del Caribe shut its Castellanos-Santa Lucía mine, which produces several metals, until 30 January 2027. The ministry also cancelled seven smaller concessions, mostly for sand, stone, clay and cement material. At the same time it extended three other concessions and approved a new one for gypsum.
Cuba's mining concessions are granted by ministerial resolution and expire or end by the same route, so the ministry can cull titles without legislation. The seven terminated concessions covered research or extraction of cement material, clay, stone and sand, mostly small construction inputs.
Construction materials depend on fuel for quarrying and transport. The US designation of the Ministry of Construction in August added a sanctions risk to any supplier tied to state building.
- Risk
If the energy deficit persists past January 2027, the Castellanos closure may be extended or made permanent.
Update #15 · Cuba opens oilfields, US cuts dollar routes
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