A company that has a common seal may have an official seal for use outside the United Kingdom.
The official seal must be a facsimile of the company's common seal, with the addition on its face of the place or places where it is to be used.
A company having an official seal for use outside the United Kingdom may—
by writing under its common seal, or
as respects Scotland, by writing subscribedor authenticated in accordance with the Requirements of Writing (Scotland) Act 1995,
authorise any person appointed for the purpose to affix the official seal to any deed or other document to which the company is party.
As between the company and a person dealing with such an agent, the agent's authority continues—
during the period mentioned in the instrument conferring the authority, or
if no period is mentioned, until notice of the revocation or termination of the agent's authority has been given to the person dealing with him.
The person affixing the official seal must certify in writing on the deed or other document to which the seal is affixed the date on which, and place at which, it is affixed.