16. Time of performance
16.1 Time shall be of the essence of the Contract.
16.2 The Supplier shall begin performing the Service on the date stated in the Contract or otherwise agreed in writing between the Parties, and shall work with due diligence from commencement until the Service has been completed and delivered properly to the Buyer’s satisfaction and all the Supplier’s obligations under the Contract have been fulfilled and discharged. The Supplier shall complete the Service by the date stated in the Contract or continue to perform the Service for the period stated in the Contract or as otherwise agreed in writing.
16.3 The Buyer may by written notice require the Supplier to execute the Service in such order as the Buyer determines. In the absence of such notice the Supplier shall submit such detailed programmes of work and progress reports as the Buyer may from time to time require.