Source: https://tendernation.io/opportunities/01a13bd2-8bc0-7213-b77e-a5882fc0a195/preliminary-market-engagement-mbgws-boxes pending GB open procedure Suitable for SMEs # Preliminary Market Engagement - MBGWS Boxes [Sellafield Limited](https://tendernation.io/buyers/sellafield-limited) Estimated value £12,000,000 Published 29 May 2026 Deadline Rolling deadline ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender 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. That 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. The 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. The 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. The anticipated demand profile remains within a range of approximately 11 to 33 units per annum, subject to confirmation. PLEASE NOTE THIS IS NOT A CALL FOR COMPETITION ## CPV classification Packaging of intermediate level nuclear waste Steel Source Find a Tender (UK) · Notice ocds-h6vhtk-0609b7-2026-05-29T15:04:43+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-0609b7-2026-05-29T15:04:43+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Sellafield Limited: past awards and live tenders](https://tendernation.io/buyers/sellafield-limited) [Sector More Sewage, refuse, cleaning & environmental tenders](https://tendernation.io/sectors/sewage-refuse-cleaning-environmental) ## More tenders like this [Tipping and Waste Disposal Framework Agreement - Ref 01044 · Tai Tarian Ltd · 43 days left · 1 Dec 2026](https://tendernation.io/opportunities/01a1592e-eb96-720b-86e3-9e68da7861b7/tipping-and-waste-disposal-framework-agreement-ref-01044) [Building-cleaning services – Neteja i desinfecció d'edificis i equipaments municipals. · Ajuntament de Tossa de Mar · 29 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156a9-63e8-7185-992a-0e5dc4502aee/spain-building-cleaning-services-neteja-i-desinfeccio-dedificis-i-equipamen) [Non-hazardous refuse and waste treatment and disposal services – CTTE1252 Servicio de tratamiento de tierras y escombros de los puntos limpios del Área Metropolitana de Barcelona (AMB) · Tractament I Seleccio de Residus, S.A. · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-6639-72de-8298-21950a4e3639/spain-non-hazardous-refuse-and-waste-treatment-and-disposal-services-ctte125) [Refuse disposal and treatment – Separace kovů ze škváry · SAKO Brno, a.s. · 37 days left · 25 Nov 2026](https://tendernation.io/opportunities/01a156a9-ca8b-71b6-a1e0-90da1abc58dc/czechia-refuse-disposal-and-treatment-separace-kovu-ze-skvary) [Refuse and waste related services – Odbiór i przyjęcie do zagospodarowania odpadów · Zakład Gospodarki Komunalnej i Mieszkaniowej w Koronowie Sp. z o.o. · 35 days left · 24 Nov 2026](https://tendernation.io/opportunities/01a156aa-0f0f-71bc-8b26-f13445721c21/poland-refuse-and-waste-related-services-odbior-i-przyjecie-do-zagospodarowa) [Non-hazardous refuse and waste treatment and disposal services – (135/2026) Procedura aperta, ai sensi dell'0art. 71 del D.Lgs. n. 36/2023, con aggiudicazione secondo il criterio del minor prezzo , ai sensi dell'art. 108, comma 3 del D.lgs. n. 36/2023, per la scelta del contraente cui affidare il servizio, di ritiro vuoto per pieno, trasporto e avvio a recupero dei rifiuti misti dell'attività di costruzione e demolizione classificati codice E.E.R. 17.09.04, div · Gare Amiu Genova · 9 days left · 29 Oct 2026](https://tendernation.io/opportunities/01a156aa-01ac-732f-a0a5-ba900c7ea4b4/italy-non-hazardous-refuse-and-waste-treatment-and-disposal-services-13520)