Why do Citigroup and Office Depot have veto power over the sale of Sherritt International’s Cuban nickel mine?

Citigroup and Office Depot hold dormant U.S. property claims—worth over $350 million on paper—stemming from assets seized during Cuba’s 1959 revolution, which later became part of Sherritt’s Cuban operations; under the Helms-Burton Act, any buyer engaging with property linked to such certified claims risks allegations of 'trafficking,' giving claim holders effective veto power over transactions involving those assets.

What is the significance of resolving Citi’s and Office Depot’s claims for future investment in Cuba?

Resolving these claims—through buyouts, partnerships, or lease arrangements—could serve as a 'model' for addressing the nearly 6,000 outstanding Helms-Burton Act claims that currently make investing in Cuba legally treacherous, potentially untangling what one attorney called 'the Gordian knot' of U.S. legal barriers to Cuban investment.