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You already know this rule from home. Your stamp, your seal, your letterhead — everything has to match your CAC certificate, word for word. Put "Mallamibro Ventures" on your seal when your certificate says "Mallamibro Ventures Nigeria Limited," and you've built a problem. It won't show up today. It shows up later — a bank asking questions, a compliance officer flagging a mismatch, a contract dispute where "is this really the same company?" becomes a real question instead of a formality.

That same discipline doesn't stop at Nigeria's border. It gets stricter. A stamp or seal made for a foreign partner, a foreign bank, or a foreign registry has its own exact rules about what has to appear on it. Get it wrong abroad, and the risk is the same as getting it wrong at home — just with less room to explain yourself in person.

United Kingdom — a short rule, but it's the law

UK companies don't need a seal at all. Most don't bother. But if your business does use one on a UK-facing document, the rule is specific. Section 45 of the Companies Act 2006 says the company's name must be engraved on the seal in legible characters. That's not a style tip. Using a seal without your exact registered name is an offence under the Act — for the company, and for its officers.

It's the same discipline as your CAC certificate. Just a different registry, and a different law enforcing it.

United States — loose on format, strict on identity

Cross the Atlantic, and the rule loosens a lot. Most US states don't require a corporate seal anymore. Where one is used, the common format — company name, state of incorporation, year of incorporation, the word "Seal" — is just that: common, not required. As long as the seal identifies the company, the exact layout usually doesn't matter. It won't affect whether the document is legally valid.

What doesn't loosen is the name. Even in a system this relaxed about format, the name on the seal still has to be the real, registered one. Not a trading name. Not a shortened version. Not what the business calls itself casually. Format bends in the US. Identity doesn't — not there, not anywhere.

China — the strictest version of this rule you'll find

This is the one that catches Nigerian businesses off guard the most. In China, the company seal that actually matters — the one that can bind a contract with no signature needed — has a fixed format. Round or oval. Red ink. The company's full Chinese registered name, arranged around a central five-pointed star. Plus a unique registration code from the Public Security Bureau.

An English-only seal carries no legal weight in China, no matter how well it's made. The name on the seal has to match the company's Chinese registration exactly — no abbreviations, no informal versions. It's the same CAC-matching discipline, pushed to its limit: not just "does the name match," but "is the name even in the language the registry recognises."

The European Union — old rules for paper, one new rule for digital

Physical company seals across Europe still follow whatever each country decided on its own — no single rule. The UK has its strict engraving rule. Ireland has a statutory requirement. Others have no rule at all. There's no single European law for the physical object.

Electronic seals are different. The eIDAS Regulation covers this the same way in every EU country. A Qualified Electronic Seal has to identify the legal entity itself, not a person. It's created through a certified device and issued by a licensed Trust Service Provider. One format, recognised the same way everywhere in the EU — because the fragmented, country-by-country approach that works for physical seals doesn't work for digital documents.

The pattern underneath all four

Every country on this list enforces the same idea your CAC registration already taught you. The details just change. The UK wants your exact legible name. The US mostly just wants a name that genuinely identifies you. China wants your exact registered name, in the exact language its registry uses. The EU wants your legal entity, provable by a certificate.

A foreign partner, bank, or registry can reject a document over a mismatch you didn't know to check for. Before that happens, have your international-facing seals reviewed against the actual requirement. Don't just assume what worked at home will work abroad.

This article is for general educational purposes only and does not constitute legal advice. Laws vary by country and change over time — businesses should seek jurisdiction-specific legal counsel before relying on any stamp or seal for the formal execution of documents.