The Fifty Percent Ownership Rule

The published list of designated persons is not a list of everyone who is blocked. An entity that appears nowhere on it, has never been named in any notice, and screens clean against every commercial database can still be blocked because of who owns it. That result follows from the ownership rule, and it is the single most common way a careful company gets a sanctions violation.

Where the rule comes from

The prohibitions in 31 CFR Chapter V do not attach only to named persons. They reach property and interests in property in which a blocked person has an interest. An ownership stake in a company is such an interest, and if the stake is large enough, the whole entity is treated as blocked property.

The administering office has set the operative threshold at fifty percent. An entity owned in the aggregate, directly or indirectly, fifty percent or more by one or more blocked persons is itself considered blocked, whether or not it is separately identified. Its property is blocked, dealings with it are prohibited, and the reporting duties described in what a listing does to property and dealings apply to it in full.

Aggregation across owners and down chains

Two features of the rule surprise people. The first is aggregation. Interests held by different blocked persons are added together, so an entity with three blocked shareholders holding twenty percent each is blocked at sixty percent even though no single holder is close to the threshold. Nothing requires the blocked owners to be related or to act together.

The second is that the rule cascades. Where a blocked person owns half or more of an entity, that entity is blocked, and it then counts as a blocked person for purposes of applying the rule again to whatever it owns. The analysis is performed one tier at a time. It is not a calculation of proportionate economic interest, so a chain can produce a blocked entity at the bottom even where the ultimate owner's economic share has fallen well below half.

Ownership for this purpose means an ownership interest, which is not always the same as voting shares. Preferred equity, partnership interests, membership interests in a limited liability company and beneficial interests held through nominees all count. Structures using trusts, bearer instruments or layered holding companies in jurisdictions with limited disclosure make the analysis difficult in practice, and the difficulty does not excuse the result. An entity is blocked or it is not, regardless of how hard the question was to answer.

Ownership is the trigger, not control

The rule is stated in terms of ownership. Control alone, however complete, does not make an entity blocked under it. That line is deliberate and it differs from the approach several other jurisdictions take, which is why a group can reach different answers under United States and foreign sanctions regimes on the same facts.

The administering office has nevertheless cautioned that dealings with entities controlled by blocked persons carry risk even where the threshold is not met, and specific programs impose their own control-based prohibitions and directives. Reading only the general ownership rule and ignoring the program part is a frequent error, since the part governing a particular country may prohibit far more than the rule does.

There is also a designation risk. Where an entity is plainly operated for the benefit of a blocked person, the office can and does add it to the list, and the addition takes effect immediately. A counterparty structured to sit just below the threshold is therefore both permitted today and unusually likely to become prohibited. Commercial terms in these relationships are normally written so that a later designation is an event of default rather than a frustration to be argued about afterward.

What diligence has to reach

Screening a name against a list cannot answer an ownership question. The work requires beneficial ownership information: shareholder registers, corporate filings, group structure charts and, where those are unavailable, representations backed by the right to audit. Commercial databases help but are incomplete for privately held groups and for jurisdictions with thin public registries.

Ownership also changes. A counterparty cleared at the outset can become blocked when one of its shareholders is designated, with no notice to anyone in the transaction. Contracts in this area therefore carry ongoing representations, notification duties and suspension rights rather than a single closing certificate. The wider set of screening obligations, including the duty not to ignore warning signs, is covered in end-use, end-user and red flag screening.

How far the inquiry has to go is a judgment about risk rather than a fixed standard. A small purchase from a listed public company in a low-risk jurisdiction does not warrant the same work as a joint venture in a sector where designations are frequent. What matters in an enforcement review is that the depth of the inquiry was proportionate and that it was recorded at the time.

When the analysis is wrong and a prohibited dealing has occurred, the response is governed by the framework in voluntary self-disclosure, penalties and mitigation. Where a group relies on foreign affiliates to conduct business it cannot conduct itself, the constraints in facilitation and the reach to non-United States parties apply with equal force.