Official UK procurement notice
UKRI-5120 Flexible B4C neutron shielding materials
Authority: UK Research and Innovation (Central government)
What is being bought
Published requirement descriptionUKRI wishes to establish a Contract for the provision of Flexible Neutron Shielding Sheets to guarantee a steady supply of flexible neutron shielding to cover Endeavour Program needs.
The site address for delivery of the goods and/or services is:
Science and Technology Facilities Council
Rutherford Appleton Laboratory
Harwell Campus
Didcot
OX11 0FA
The estimated value of the opportunity is £400,000.00 ex VAT across the 4-year period. This is the maximum value that can be used however, please note this is not guaranteed. .
Sample request:
UKRI STFC have requested for a sample Neutron Shielding Sheet to be produced for Q6.06. Please send to the address above for the attention of Francesco Zuddas- ISIS Department and inform us of when it is expected to arrive through the Atamis eSourcing Portal. Please be aware that samples need to be received back before or on the closing date which is 24th October 2025 at 14:00 GM
- No preliminary market engagement: The market is already well-understood, Where the requirements are already precise, tested, and unlikely to change, it wouldn't have been beneficial to do do pre market engagement. There are a limited number of suppliers in this field and the end user already has a good understanding of the market through the 3-quote process previously used to obtain product pricing.
CPV: Plates, sheets, strip and foil related to construction materials
The lotProcurement structure
single lot · value publishedLot #1AwardedPublished value£400,000
What it takes to wini
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Evaluation split and conditions of participation as published; the tender pack may add morei
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Published sub-criteria (2)
- Technical/Quality: 75%
- Price: 25%
Published award criteria (2)
- Price
- Technical/Quality
- Price carries 25 of 100 points: a 10% discount moves about 2.5 points. The method statement decides this lot, not the discount.
Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.
Procedure terms & legal framework
From the official record- Procedure method
- Open procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Goods
- Notice status
- Awarded
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 15 Sept 2025, 12:51 BST
- Last source update
- 3 Dec 2025, 12:07 GMT
- Award evaluation window
- Submission end – 28 Nov 2025
- Authority reference
C0380- FTS notice number
2025/S 000-056551- Latest notice
- Contract details notice (UK7)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-059a43Find a Tender
How it was run
Official notice- Submission deadline
- 31 Oct 2025, 14:00 GMT
- Clarification deadline
- 10 Oct 2025, 14:00 BST
- Submission channel
- Official e-sourcing portal
- Electronic submission
- Allowed
- Accepted languages
- en
To access this opportunity please click here: ukri2--prospend.vf.force.com/apex/CS_ContractPage ↗
Please note the following steps for accessing this opportunity via the Atamis eSourcing platform:
- Log in or create an account here: ukri2.my.site.com ↗
- Navigate to the opportunity in the Find an Opportunity section of the site or via the direct access link above.
- Select Register Interest (you will not be able to view the tender documentation without registering an interest).
- Go back to the main menu and navigate to the My Proposals and Quotes section of the site.
- Select the opportunity from the list. Tender Documents for download are found in the Documents tab
Sample request:
UKRI STFC have requested for a sample Neutron Shielding Sheet to be produced for one of the technical questions. Please send to Science and Technology Facilities Council Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0FA for the attention of the ISIS Department and inform us of when it is expected to arrive through the Atamis eSourcing Portal. Please be aware that samples need to be received back before or on the closing date which is 24th October 2025 at 14:00 GMT.
Timeline
15 Sept 2025 → 3 Dec 2025 · 8 dates- Tender notice published15 Sept 2025, 12:51 BST
- Clarification questions by376 days ago10 Oct 2025, 14:00 BST
- Submission deadline355 days ago31 Oct 2025, 14:00 GMT
- Assessment summaries sent343 days ago12 Nov 2025
- Standstill ends333 days ago21 Nov 2025, 23:59 GMT
- Award decision expected by326 days ago28 Nov 2025, 23:59 GMT
- Contract starts326 days ago29 Nov 2025
- Latest notice published322 days ago3 Dec 2025, 12:07 GMT
Notice history
7 events · 4 releases on Find a Tender · since 15 Sept 2025- Tender notice published15 Sept 2025, 12:51 BSTUK4
- Tender notice published21 Oct 2025, 11:53 BSTUK4
- Deadline moved to 31 Oct 2025, 14:00 GMT21 Oct 2025, 11:53 BST+7 days · was 24 Oct 2025, 14:00 BST
- Contract award notice published12 Nov 2025, 09:51 GMTUK6
- Status changed to complete12 Nov 2025, 09:51 GMT
- Contract signature expected28 Nov 2025, 23:59 GMTscheduled
- Contract details notice published3 Dec 2025, 12:07 GMTUK7
Published amendments (1)
The deadline for bid submission has been extended by one week, from Friday, 24th October to Friday, 31st October at 2:00 PM, to provide suppliers with additional time to prepare and submit their bids.
Routine re-releases (4)
- 2025-09: 1 release · 15 Sept 2025
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| Mirrotron LtdUKRI-5120 Flexible Neutron Shielding Sheets.1 Dec 2025 – 30 Nov 2029 | £400,000same award published again · counted once | 12 Nov 2025standstill to 21 Nov 2025 | Standstill |
| Mirrotron Ltd | £400,000 † | — | Awarded |
Contracts
UKRI-5120 Supply of Flexible B4C Neutron Shielding Materials. · Mirrotron Ltd
- Signed
- 3 Dec 2025
- Value
- £400,000
- Period
- 4 Dec 2025 – 3 Dec 2029
- Status
- active
Bid statistics published by the authority
| Bids | SME | VCSE | Valid bid range |
|---|---|---|---|
| 1final-stage tenders | 1 | 0 | — |
Contracting authority & participating public bodies
Bidders & participating suppliers
1 commercial party on the notice- MirrotronAwarded supplier
Official documents & specifications (4)
Official links; attachments are not copiedNotices published for this procedure
- Contract details notice Contract details notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
- Tender notice Tender notice on Find a Tender
- Tender notice Tender notice on Find a Tender