---
title: "MSSS Duct Unblocking Trial"
ocid: "ocds-h6vhtk-059bc6"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-059bc6"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-059bc6.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-059bc6.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED"
published: "2025-09-16"
---

# MSSS Duct Unblocking Trial

Buyer: UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-059bc6

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## Summary

The United Kingdom National Nuclear Laboratory Limited has completed a public procurement process for the "MSSS Duct Unblocking Trial" under the services category, focusing on nuclear evaluation and engineering consultancy. This contract, awarded directly without competition, was aimed at acquiring suitably qualified engineers for deploying a prototype system in an experimental project to unblock hazardous nuclear waste. The contract commenced on 4th August 2025 and ran until 1st October 2025. The project's delivery location is within the United Kingdom, with central government acting as the buying authority.

This tender presents significant potential for businesses specialising in nuclear evaluation instruments and civil engineering consultancy services, particularly those with expertise in handling hazardous materials and innovative engineering solutions. Although the procurement method was below threshold, offering limited competition, it highlights the importance of positioning for direct awards where specialised skills align with government projects. Large-scale corporations like FIRMA Engineering Ltd would find this contract valuable, particularly if they have a strong track record in the nuclear sector, thus opening pathways for further public-sector opportunities and collaborations.

## Notice

Suitably Qualified and Experienced Engineers acquired to provide support for the deployment of a prototype system that will be used in an experimental project for unblocking hazardous nuclear waste.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/057124-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Below threshold - without competition |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 16 Sep 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 13 Jul 2025 |
| Contract period | 3 Aug 2025 - 1 Oct 2025 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £42,780 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED |
| Locality | WARRINGTON |
| Post town | Warrington |
| Postcode | WA3 6AE |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Birchwood |
| Westminster constituency | Warrington North |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | FIRMA ENGINEERING |

## CPV Codes

### Divisions

- 38 - Laboratory, optical and precision equipments (excl. glasses)
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 38940000 - Nuclear evaluation instruments
- 38970000 - Research, testing and scientific technical simulator
- 71311000 - Civil engineering consultancy services

## Release History

- 16 Sep 2025 at 17:00 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/057124-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/057124-2025
  16th September 2025 - Contract details notice on Find a Tender

## Notice URLs

- http://www.uknnl.com
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-059bc6. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-059bc6.json.