What is a company sign chop?
A company sign chop (公司簽名章 / Sign Chop) is the rectangular landscape stamp that carries the line “For and on behalf of [Company Name] Limited” above an authorised-signature line. Common sizes are 60 mm × 25 mm or 70 mm × 30 mm. In use, an authorised signatory signs the line by hand and the chop is impressed alongside as the company's endorsement.
Compared with the round seal (everyday company chop) and the Common Seal (法團印章, the formal steel die), the sign chop has no specific provision in the Companies Ordinance — but in practice it's the most common chop on contracts, cheques, payment instructions and powers of attorney, because it juxtaposes the company name and a handwritten signature in the most legible way.
When you'll use a sign chop
- Commercial contracts — purchase contracts, sales contracts, leases, service agreements. Authorised directors or signatories sign on the line beneath the chop, so the bank or counterparty verifies both the company and the signatory in one step.
- Bank cheques and payment instructions — local company cheques typically expect “authorised signature(s) below the stamp”. The sign chop provides exactly that dual endorsement area.
- Powers of attorney / authorisation letters — staff authorisations, accountant authorisations, customs broker letters and similar documents.
- Government correspondence — Inland Revenue letters, Business Registration changes, Labour Department employer paperwork, Immigration sponsorship letters.
Layout variants
How well a sign chop reads comes down to a few layout details:
- Standard "For and on behalf of" layout — small line on top reading “For and on behalf of”, middle line with the full English company name in a larger size, bottom line “Authorized Signature(s)” over a separator. The most universal layout, accepted by all banks.
- Address-stamp layout — top + bottom rows replaced by the bilingual company name, middle rows for address, BR number, phone and fax. Common on invoices, receipts and letterheads — but not a sign chop. Banks treat this as an address chop rather than an authorising endorsement. The generator has a one-click preset for this layout.
- Cheque chop layout — English name in the centre at a larger size, with only “Authorized Signature(s)” below. Optimised for fast cheque-stamping. Also a generator preset.
- Bilingual proportion — English-only layouts read fine at 25 mm tall; if you need the Chinese name as well, raise the chop height to 27-32 mm so the English line doesn't get squeezed.
- Origin of "For and on behalf of" — a phrase from English company / agency law meaning "representing the company, not as an individual". Hong Kong inherited the convention; banks and the legal profession accept it as standard.
Ordering the physical stamp
Once the design is final, hand the SVG to a stamp shop and specify:
- Physical size (60 mm × 25 mm is the everyday default; 70 mm × 30 mm if your English name is long)
- Stamp type (pre-inked / self-inking / rubber)
- Ink colour (blue is the most common for contracts; black for formal filings; purple as a backup; red for emphasis)
SeeHow to make a company stampfor the full workflow.
Sign chop FAQ
Can a sign chop replace the Common Seal?
No. The Common Seal is the metal die specifically governed by section 124(1) of Cap. 622, which a company may optionally keep. If a contract explicitly requires "executed under the common seal", only an actual Common Seal will do — not a sign chop. For everyday commercial contracts, however, a sign chop + handwritten signature is universally accepted. See ourlegal status guide.
Should I use "Signature" or "Signatures"?
It depends on your articles. If two directors (or one director plus the company secretary) must sign — the execution method specified by section 127(3) of Cap. 622 — use the plural. If a single authorised representative is enough, use the singular. To handle both, the market often hedges with “Signature(s)”.
Do I need both English and Chinese names?
No statutory requirement. Offshore holding companies and English-only startups typically use an English-only layout; Chinese-led firms use a bilingual layout. Match whatever your Certificate of Incorporation actually says.
Why does my chop smudge as soon as it touches the contract?
Common causes: too much ink in the pad, glossy paper (synthetic / coated stock), uneven pressure. Test three times on plain A4 first; self-inking stamps usually need a 1-2 second hold before lifting so the pad fully transfers ink.
For cheques, do I use the round seal or the sign chop?
Either, depending on which design you registered as the chop specimen. Most local SME chequebooks have space for both a round chop and a rectangular sign chop — the bank's specimen record on file is the authority. See ourHK bank stamp guide.