NATURE AND SCOPE 4.1 This Agreement is an agreement under the terms and conditions of which the Supplier/Service Provider will arrange for the supply/provision to Transnet of the Goods/Services which meet the requirements and specifications of Transnet, the delivery of which is controlled by means of Purchase Orders to be issued by Transnet and executed by the Supplier/Service Provider in accordance with this Agreement. 4.2 Such Purchase Orders and deliveries to Transnet shall be agreed between the Parties from time to time, subject to the terms of the Schedule of Requirements/Work Order. 4.3 Each properly executed Purchase Order forms an inseparable part of this Agreement as if it were fully incorporated into the body of this Agreement. 4.4 During the period of this Agreement, both Parties can make written suggestions for amendments to the Schedule of Requirements/Work Orders in accordance with procedures set out in clause 35 [Amendment and Change Control]. A Party will advise the other Party within 14 [fourteen] Business Days, or such other period as mutually agreed, whether the amendment is acceptable. 4.5 Insofar as any term, provision or condition in the Schedule of Requirements/Work Order conflicts with a like term, provision or condition in this Agreement and/or a Purchase Order, the term or provision or condition in this Master Agreement shall prevail, unless such term or provision or condition in this Master Agreement has been specifically revoked or amended by mutual written agreement between the Parties. 4.6 Time will be of the essence and the Supplier/Service Provider will perform its obligations under this Agreement in accordance with the timeframe(s) [if any] set out in the relevant schedule, save that the Supplier/Service Provider will not be liable under this clause if it is unable to meet such obligation within the time required as a direct result of any act or omission by Transnet and it has used its best endeavours to advise Transnet of such act or omission. In the event of such delay, any time deadlines detailed in the relevant schedule shall be extended by a period equal to the period of that delay.