Article 21 Definition of Acceptance
An acceptance is the offeree's manifestation of intention to assent to an offer.
Article 22 Mode of Acceptance; Acceptance by Conduct
An acceptance shall be manifested by notification, except where it may be manifested by conduct in accordance with the relevant usage or as indicated in the offer.
Article 23 Timely Dispatch of Acceptance
An acceptance shall reach the offeror within the period prescribed in the offer.
Where the offer does not prescribe a period for acceptance, the acceptance shall reach the offeror as follows:
(i) Where the offer is made orally, the acceptance shall be dispatched immediately, unless otherwise agreed by the parties;
(ii) Where the offer is made in a non-oral manner, the acceptance shall reach the offeror within a reasonable time.
Article 24 Commencement of the Period for Acceptance
Where an offer is made by a letter or a telegram, the period for acceptance commences on the date shown on the letter or the date on which the telegram is handed in for dispatch. If the letter does not specify a date, the period commences on the posting date stamped on the envelope. Where the offer is made through an instantaneous communication device such as telephone or facsimile, etc., the period for acceptance commences once the offer reaches the offeree.
Article 25 Contract Formed upon Effectiveness of Acceptance
A contract is formed once the acceptance becomes effective.
Article 26 Effectiveness of Acceptance
A notice of acceptance becomes effective once it reaches the offeror. Where the acceptance does not require notification, it becomes effective once an act of acceptance is performed in accordance with the relevant usage or as required by the offer. Where a contract is concluded by the exchange of electronic messages, the time of arrival of the acceptance shall be governed by Paragraph 2 of Article 16 hereof.
Article 27 Withdrawal of Acceptance
An acceptance may be withdrawn. The notice of withdrawal shall reach the offeror before or at the same time as the acceptance.
Article 28 Late Acceptance
An acceptance dispatched by the offeree after expiration of the period for acceptance constitutes a new offer, unless the offeror timely advises the offeree that the acceptance is valid.
Article 29 Delayed Transmission of Acceptance
If the offeree dispatched its acceptance within the period for acceptance, and the acceptance, which would otherwise have reached the offeror in due time under normal circumstances, reaches the offeror after expiration of the period for acceptance due to any other reason, the acceptance is valid, unless the offeror timely advises the offeree that the acceptance has been rejected on grounds of the delay.