Sherritt International

Sherritt International is a publicly listed Canadian mining and energy company. Since 1990 it has invested in a nickel and cobalt joint venture at Moa, in Cuba's Holguín province, mining and processing ore on the island before refining it at Fort Saskatchewan, Alberta.

Sherritt disclosed on 13 July 2026 that it had entered a 120-day exclusivity agreement with Gillon Capital, a US family office, over its Cuban nickel stake, expiring 12 October 2026. The disclosure came weeks before OFAC's 20 August designation of Cuba's state nickel-mining monopoly and its 3 September designation of the nickel-trade intermediary Cexni.

The exclusivity window's 12 October expiry is the first dated point at which Sherritt or its counterparty must decide whether to commit new capital to a Cuban sector whose monopoly operator and lead trading house are both now under OFAC designation, testing whether Havana's own investment reforms can offset the sanctions pressure or are overtaken by it.