1. The provisions set forth in this Clause shall be applicable, unless the parties agree upon otherwise: a. Any written letter shall be deemed to have been delivered: if it is served on the addressee by hand, or at its place of business, usual place of residence, or postal address known to the two parties or referred to in the arbitration agreement or the document governing the subject matter of the arbitration. In case of failure to identify any of such addresses after conducting the necessary inquiries, the written letter shall be deemed to have been delivered if it is sent to the addressee's last-known place of business, usual place of residence or postal address by a registered letter, or by courier companies or by any other means providing written proof of the attempts made to deliver it. The term "postal address" shall include any facsimile number or e-mail address have been previously used the parties in their correspondence between them or previously provided in one of the parties' correspondence to the other party. b. The letter shall be deemed to have been delivered on the day it is delivered as set forth in this Law. The letter sent via facsimile or email shall be deemed to have been delivered on the date on which its details indicate that it is sent, provided that there is no evidence that any error occurs while sending it. In all cases, the letter shall be deemed delivered if it is received or sent before 6:00 pm in the country where the letter is received. Otherwise, the delivery shall be deemed to have taken place on the following day. 2. For the purposes of calculation of periods in accordance with this Law, the period shall commence from the day following the day the letter or any other correspondence is received. If the last day in such period is a public holiday or a non-business day at the addressee's headquarters or place of business, the period shall be extended until the first working day which follows. Public holidays or non-business days occurring during such period of time shall be included in the calculation of such period. 3. The provisions of such Article shall not apply to the correspondence made during the proceedings before courts.
Interpretation and application must be checked against the official text and current version.