The Submarine Delivery Agency, part of the United Kingdom Ministry of Defence (the "Authority",) intends to amend its existing Future Maritime Support Programme Lot 3 Contract (contract reference FMSP/006) with Devonport Royal Dockyard Limited (the "Company") to include a new requirement for the management of the procurement of high risk, long lead, manufactured material and support equipment to be used for maintenance and repair to meet the Design Authority's Requirement (DAR) on the occasion of an Astute-Class (A-Class) Ship Submersible Nuclear (SSN) Deep Maintenance Project (DMP). The estimated value of the intended contract amendment is £100,000,000 (inc. of VAT.)