---
title: "9003532 - Supply of KB Mirror System for K21"
ocid: "ocds-h6vhtk-05d330"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d330"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d330.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d330.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "DIAMOND LIGHT SOURCE LIMITED"
published: "2026-02-13"
---

# 9003532 - Supply of KB Mirror System for K21

Buyer: DIAMOND LIGHT SOURCE LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-05d330

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## Summary

Diamond Light Source Limited, a public authority under central government, has completed the procurement process for the supply of a KB Mirror System for the K21 beamline in Oxfordshire, United Kingdom. The contract, initiated through an open procedure, was awarded on 30th January 2026, with a completion date set for 30th July 2027. Located on the Harwell Science & Innovation Campus, the facility is undergoing significant upgrades to enhance its research capabilities in life and physical sciences. The primary procurement activity involves the design, manufacture, assembly, installation, and commissioning of components such as X-ray mirrors and mechanical benders, aimed at advancing scientific research in the region.

The completion of this contract presents growth opportunities for businesses specialising in high-precision optical systems and cutting-edge scientific equipment. SMEs in particular, such as XDS Oxford Limited, which secured the contract, are well-positioned to thrive by leveraging their technical expertise and manufacturing capabilities. With a gross contract value of £558,000 and targeting categories such as mirrors, this procurement enables firms to contribute to and benefit from the scientific advancements facilitated by Diamond Light Source's ongoing developments. Business entities with experience in producing specialised instruments for science and innovation facilities could find similar future tenders to be advantageous for expanding their market presence and technological prowess.

## Notice

Located on the Harwell Science & Innovation Campus in Oxfordshire, Diamond Light Source (DLS) is a leading-edge facility for science, engineering and innovation. DLS allows researchers from academia and industry to investigate the structure and behaviour of the world around us at the atomic and molecular level. To continue delivering the world-changing science that Diamond enables, the facility is being upgraded to Diamond-II, a co-ordinated programme of development that combines a major machine upgrade with new instruments and complementary improvements to optics, detectors, sample environment and delivery capabilities, and computing, as well as integrated and correlative methods. This will be transformative in speed and spatial resolution and will offer users streamlined access to enhanced instruments for life and physical sciences. The scope of the contract is for the design, supply of material, manufacture, assembly, test, delivery, installation and commissioning of a focussing mirror system for the K21 beamline. The minimum scope of the contract is the design, manufacture, test, and delivery of: * VFM upward reflecting, X-ray mirror & mechanics. * HFM inboard reflecting, X-ray mirror & mechanics. * Motorized mechanical bender to adjust the curvature of VFM's reflecting surface. * Motorized mechanical bender to adjust the curvature of HFM'S reflecting surface. * Passive cooling (braids or similar) required due to upstream beam monochromatisation by a double multilayer monochromator. * Vacuum vessel and associated controls. * Support frame. * Interface to beamline services.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/013556-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | SME |
| Awardee scale | SME |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 13 Feb 2026 |
| Submission deadline | 24 Nov 2025 |
| Future notice date | Not specified |
| Award date | 19 Jan 2026 |
| Contract period | 29 Jan 2026 - 30 Jul 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £350,000 |
| Lots value | £350,000 |
| Awards value | £465,000 |
| Contracts value | £465,000 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DIAMOND LIGHT SOURCE LIMITED |
| Locality | DIDCOT |
| Post town | Oxford |
| Postcode | OX11 0DE |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire |
| ITL 3 | TLJ14 Oxfordshire CC |
| Local authority | Vale of White Horse |
| Electoral ward | Blewbury & Harwell |
| Westminster constituency | Didcot and Wantage |
| Delivery location | TLJ14 Oxfordshire CC |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | XDS OXFORD |

## CPV Codes

### Divisions

- 38 - Laboratory, optical and precision equipments (excl. glasses)

### Codes

- 38622000 - Mirrors

## Release History

- 13 Feb 2026 at 15:44 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/013556-2026
- 20 Jan 2026 at 13:14 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/004821-2026
- 24 Oct 2025 at 10:13 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/068109-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/013556-2026
  13th February 2026 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/004821-2026
  20th January 2026 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/068109-2025
  24th October 2025 - Tender notice on Find a Tender
- https://tenders.diamond.ac.uk
  Visit our web page: https://tenders.diamond.ac.uk Here Suppliers are required to complete a one-off simple registration form. You are then able to login to register an interest against the tender and download the Tender Documents.

## Notice URLs

- https://diamondtenders@diamond.ac.uk
- https://www.legislation.gov.uk/ukpga/2023/54/contents
- https://xds-oxford.com/

## 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-05d330. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d330.json.