Company Chops in Hong Kong: Legal Requirement or Business Habit?

Ask for a document to be "chopped" in Hong Kong and everyone knows what you mean. The company chop is everywhere — yet legally, Hong Kong left the mandatory seal behind more than a decade ago. Understanding which chop matters, and when, saves real confusion.

The confusion is worth taking seriously because Hong Kong sits between two very different traditions. On one side is English company law, which has spent a century reducing the seal to a formality. On the other is mainland Chinese practice, where the 公章 genuinely is the company's binding instrument and its custody is a governance question. Hong Kong companies deal with both, often in the same week.

Three different "chops"

Hong Kong practice distinguishes several stamps that outsiders often mix up:

Common seal — the embossed metal seal pressed into paper. Under the Companies Ordinance (Cap. 622), in force since 2014, keeping one is optional. A company can execute deeds by the signature of two directors, or a director plus company secretary.
Company chop (round chop) — the round inked stamp with the company name, used on contracts and official letters. No statute requires it, but it is the workhorse of daily business.
Signature chop / small chop — a rectangular stamp, often reading "For and on behalf of [Company]", stamped above an authorized signature on cheques, invoices and bank forms.

A fourth item shows up in older files: the securities seal, historically used for share certificates. Cap. 622 permits a company to have one, distinguished from the common seal, but for most private companies it is now a curiosity rather than a working tool.

What the law actually requires

A Hong Kong company is bound by the signatures of persons acting with authority. The chop is evidence the document went through the company — useful, expected, but not the source of legal force. The Electronic Transactions Ordinance (Cap. 553) additionally recognizes electronic signatures for most commercial documents (with carve-outs like wills and certain property documents), and government transactions may require digital certificates from recognized certification authorities.

The practical test to apply to any document in front of you is not "is it chopped?" but "did someone with authority to bind this company sign it, and can I show that?" Board resolutions, powers of attorney and the company's own constitution answer that question. A chop answers none of it.

Where you'll still need a chop in practice

Banks: account opening forms, cheques and instructions routinely expect the signature chop alongside authorized signatures.
Cross-border business with the mainland: mainland counterparties treat stamped documents as the norm — an unstamped contract can stall simply because it looks incomplete. Context on the mainland system is in electronic seals in China.
Invoices, receipts, delivery notes: a chopped invoice is still the expected look across most industries.
Tender submissions and certified copies: a chopped copy of the Business Registration Certificate or the annual return is a standard request from landlords, insurers and procurement teams.
Logistics paperwork: delivery orders, cargo receipts and customs-adjacent documents move faster chopped, because the handling clerk is matching a pattern.

Chop custody is a real governance issue

Because a chop is easy to apply and hard to attribute, who holds it matters. Disputes in Hong Kong SMEs quite often turn on a departing director or disgruntled partner retaining the chop and continuing to stamp documents. A few habits reduce the exposure:

Record in writing who holds each chop and who may apply it, and keep the record current when people leave.
Keep a chop log for anything consequential — date, document, who applied it, on whose instruction.
Do not let the chop travel. If a document needs chopping off-site, send it to the chop rather than the chop to the document.
Treat the digital image with the same discipline as the physical chop; see the seal file management guide.

None of this changes the legal position — an unauthorised chop does not bind the company — but it saves you from having to prove that after the fact.

Designing a Hong Kong chop

The classic round chop carries the English name around the top arc, the Chinese name around the bottom (or vice versa), and a plain center — effectively a bilingual layout. The bilingual seal template matches this structure, and the rectangular "for and on behalf of" style can be built from the corporate seal template. Blue or purple ink dominates; red is common for chops used with mainland-facing paperwork. Design one in the online seal generator, export a transparent PNG, and use the PDF stamping tool to chop digital documents cleanly.

Getting the bilingual layout right

Two details cause most of the rework:

Name accuracy. Use the exact registered English and Chinese names as they appear on the Business Registration Certificate. Hong Kong companies frequently have a Chinese name that is not a translation of the English one; inventing a translation creates a chop that matches nothing on file.
Character density. A Chinese name of six to eight characters sits comfortably on a bottom arc at 40mm. A long English name on the top arc plus a long Chinese name below will force the type down to the point where it fills in when inked. If both names are long, move one to a straight line inside the ring instead of arcing it.

Traditional characters are the norm for Hong Kong chops. If your chop will also be used on mainland-facing documents, the traditional form is still correct — the mainland counterparty is verifying your registered HK name, not expecting simplified characters.

FAQ

Is a company chop legally required in Hong Kong? No statute requires one. Deeds can be executed by signatures alone since 2014, and ordinary contracts bind through authorized signatures.

Can I rely on a chopped document without a signature? Risky. Courts look to authority; a chop without an authorized signature invites disputes about who applied it.

Is an image of our chop in a PDF legally effective? It carries the same evidentiary role as the physical chop's appearance, but proves little by itself — see are image seals legally valid?. For enforceable e-execution, use a recognized e-signature.

Do we need both a round chop and a signature chop? Not legally. Most active companies end up with both because banks want the rectangular one and counterparties expect the round one.

Should the Business Registration number appear on the chop? It is optional and less conventional than in Singapore, but including it helps counterparties verify the entity and does no harm.

A mainland partner insists our HK chop is "not a real 公章". Are they right? They are describing a different legal system. A Hong Kong chop is not a PSB-filed mainland seal and never will be; what binds your HK company is the authorised signature. If the mainland side needs comfort, a board resolution or certified copy of your registration usually resolves it faster than arguing about the chop.

This article is general information, not legal advice. Verify current requirements with the Companies Registry or a qualified professional.