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Full Assembly Model\nBased on the information available, would your organisation consider a full assembly (single supplier) model to be an attractive opportunity?\nPlease set out any conditions or factors that would influence your interest.\n2. Mobilisation Period\nWhat mobilisation period would your organisation typically require for a requirement of this nature?\nPlease outline the key activities that would drive this timeline (e.g. tooling, design validation, supply chain, recruitment, approvals).\n3. 18-Month Mobilisation Feasibility\nDo you consider an 18-month mobilisation period to be sufficient to establish capability and commence compliant production?\nPlease provide supporting rationale.\nIf not, please indicate what mobilisation period you would consider achievable.\n4. Volume and Demand Profile\nIs the anticipated volume range (circa 11–33 units per annum) considered commercially attractive?\nPlease provide any comments on minimum viable volumes, batching, or production considerations.\n5. Product Introduction Approach and Experience\nWhat experience does your organisation have in introducing new or technically complex products into production?\nPlease outline any structured approaches or methodologies (e.g. New Product Introduction (NPI), Advanced Product Quality Planning (APQP), or similar) that you typically use, and how these support mobilisation and transition into production.\n6. Additional Comments\nPlease provide any additional observations that may help inform the procurement strategy, including risk areas or key considerations.\nInterested parties should respond to this by 12 June 2026." } ], "dueDate": [ { "releaseID": "050919-2026", "releaseDate": "2026-05-29T15:04:43+01:00", "releaseTag": [ "planning" ], "value": "2026-06-12T23:59:59+01:00" } ], "status": [ { "releaseID": "050919-2026", "releaseDate": "2026-05-29T15:04:43+01:00", "releaseTag": [ "planning" ], "value": "scheduled" } ] } ] }, "parties": [ { "id": "GB-PPON-PWYP-8439-MZWY", "name": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "Sellafield Limited" } ], "identifier": { "scheme": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "GB-PPON" } ], "id": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "PWYP-8439-MZWY" } ] }, "address": { "streetAddress": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "Hinton House, Birchwood Park Avenue" } ], "locality": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "Warrington" } ], "postalCode": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "WA3 6GR" } ], "country": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "GB" } ], "countryName": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "United Kingdom" } ], "region": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "UKD61" } ] }, "contactPoint": { "name": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "Jennifer Powell" }, { "releaseID": "050919-2026", "releaseDate": "2026-05-29T15:04:43+01:00", "releaseTag": [ "planning" ], "value": "Karolina Kosik" } ], "email": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "jennifer.l.powell@sellafieldsites.com" }, { "releaseID": "050919-2026", "releaseDate": "2026-05-29T15:04:43+01:00", "releaseTag": [ "planning" ], "value": "karolina.kosik@sellafieldsites.com" } ] }, "roles": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": [ "buyer" ] } ], "details": { "url": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "https://www.gov.uk/government/organisations/sellafield-ltd" } ], "classifications": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": [ { "scheme": "UK_CA_TYPE", "id": "publicAuthoritySubCentralGovernment", "description": "Public authority - sub-central government" } ] } ] } } ], "buyer": { "id": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "GB-PPON-PWYP-8439-MZWY" } ], "name": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "Sellafield Limited" } ] }, "tender": { "id": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "C8434" }, { "releaseID": "050919-2026", "releaseDate": "2026-05-29T15:04:43+01:00", "releaseTag": [ "planning" ], "value": "C31446" } ], "legalBasis": { "id": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "2023/54" } ], "scheme": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "UKPGA" } ], "uri": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "https://www.legislation.gov.uk/ukpga/2023/54/contents" } ] }, "title": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "Pipeline notice for the manufacture of MBGWS Boxes" }, { "releaseID": "050919-2026", "releaseDate": "2026-05-29T15:04:43+01:00", "releaseTag": [ "planning" ], "value": "Preliminary Market Engagement - MBGWS Boxes" } ], "description": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": "Expression of Interest for Manufacture of Miscellaneous Beta Gamma Waste Boxes. \nTo manufacture and supply an estimated range of 11 - 33 Miscellaneous Beta Gamma Waste boxes per year for an estimated duration of 4 years from 2028." }, { "releaseID": "050919-2026", "releaseDate": "2026-05-29T15:04:43+01:00", "releaseTag": [ "planning" ], "value": "This notice builds on the previous Preliminary Market Engagement (UK2 Notice reference: 004728-2026), published on 20 January 2026, which sought to assess supplier capability and market interest in the manufacture and supply of Miscellaneous Beta Gamma Waste (MBGW) Boxes.\nThat engagement demonstrated a strong level of market interest and identified a number of capable suppliers. Sellafield Ltd is now undertaking a further phase of market engagement to refine its understanding of supplier capacity, mobilisation requirements, and commercial considerations in advance of finalising the procurement strategy.\nThe current preferred delivery model is for the full assembly of MBGW Boxes by a single supplier. This engagement is intended to gather targeted feedback to validate this approach and inform the design of the forthcoming procurement.\nThe requirement is expected to include the manufacture, assembly, testing, and delivery of Miscellaneous Beta Gamma Waste (MBGW) Boxes in accordance with Sellafield Ltd specifications and requirements.\nThe anticipated demand profile remains within a range of approximately 11 to 33 units per annum, subject to confirmation.\nPLEASE NOTE THIS IS NOT A CALL FOR COMPETITION" } ], "items": [ { "id": "1", "additionalClassifications": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": [ { "scheme": "CPV", "id": "90521520", "description": "Packaging of intermediate level nuclear waste" }, { "scheme": "CPV", "id": "14622000", "description": "Steel" } ] } ], "deliveryAddresses": [ { "region": [ { "releaseID": "004721-2026", "releaseDate": "2026-01-20T11:37:43Z", "releaseTag": [ "planning" ], "value": 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