2.3.2.Commencement Date occurs upon the fulfillment of the following conditions: - Signing of the Agreement;- Receipt by the General Contractor from the Owner of advance payment in accordance with clause 3.2.1.1. of this Agreement against the provision of the relevant advance payment corporate guarantee by General Contractor;- Signing of Construction Site Handover Certificate – within 10 (ten) working days upon receipt of this certificate draft from the Owner.In case of delay in execution of at least one of the conditions due to reasons attributable to Owner, the Commencement date and Completion date are transferred for a period commensurate with the delay.