Phoenix shall have full power and authority to supply to the Subcontractor from time to time, during the progress of the Subcontract Works, such further drawings, specifications and instructions as shall be necessary for the purpose of the proper and adequate execution and maintenance of the Subcontract Works. The Subcontractor shall carry out the Subcontract Works accordingly and be bound by the same. Should Phoenix/Consultant/Client change the approved Drawings and/or Specifications, a variation(s) subject to Clause 3 may be applicable.