--- title: "Supply of Bulk Construction Aggregates for Defence School of Transport (DST)" ocid: "ocds-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a.json" source: "Contracts Finder" current_stage: "Tender" buyer: "UNITE PROCUREMENT UK LIMITED" published: "2025-11-17" --- # Supply of Bulk Construction Aggregates for Defence School of Transport (DST) Buyer: UNITE PROCUREMENT UK LIMITED Current stage: Tender OCID: ocds-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a.json) ## Summary Unite Procurement UK Limited is managing a procurement process on behalf of the Ministry of Defence for the supply of bulk construction aggregates for the Defence School of Transport (DST) located in Leconfield, East Riding of Yorkshire. This procurement process, categorised under Gravel, sand, crushed stone and aggregates, with additional classification for Ready-mixed concrete, involves a selective procurement method detailed as a catalogue purchase. The process seeks multiple suppliers to provide materials such as MOT Type 1, Whitewall Cobble, Pea Gravel, Topsoil, and Ready Mix Concrete, catering to high-volume requirements. The procurement has been active since it was published on 30th September 2025, and the contract is set to commence on 20th October 2025, ending on 20th October 2028. Businesses in the construction materials industry, particularly those specialising in aggregates and ready-mixed concrete, stand to gain significant opportunities by participating in this tender. Suitable candidates, especially small and medium enterprises (SMEs) and voluntary organisations, are encouraged to demonstrate their capability to supply and deliver the required materials reliably throughout the year via the Mercateo Procurement Platform. This opportunity provides a reliable revenue stream through engagements with DST and flexibility in supply, fostering growth and networking within the UK public sector. Interested businesses can ensure competitive positioning by expressing interest and maintaining readiness for ongoing onboarding as part of an evolving supplier network. ## Notice Unite Procurement UK Limited (part of Unite Holding SE), on behalf of the Ministry of Defence, is seeking suppliers to join the Mercateo Procurement Platform to support the provision of bulk construction materials for the Defence School of Transport (DST) in Leconfield, East Riding of Yorkshire. The Mercateo Procurement Platform (www.mercateo.co.uk) offers a compliant route to market for UK Public Sector organisations to manage low-value, high-volume procurement. DST delivers military driver training and vehicle license acquisition across a dedicated 770-acre driver training estate. The ongoing maintenance of this estate requires a constant and reliable supply of basic construction aggregates. Key Requirements Suppliers must be able to provide the following materials, delivered as required to DST, Leconfield: MOT Type 1: up to 4,000 tonnes per year Whitewall Cobble: up to 1,000 tonnes per year Pea Gravel: up to 1,000 tonnes per year Topsoil: up to 1,000 tonnes per year Ready Mix Concrete: up to 500m3 per year Suppliers should demonstrate: Proven capability to deliver the specified quantities reliably throughout the year. Compliance with all relevant UK standards for aggregates and construction materials. Ability to deliver to DST's site in Leconfield, East Riding of Yorkshire. Willingness to transact via the Mercateo Procurement Platform. How to Apply Interested suppliers should register their interest by contacting Unite Procurement UK Limited and provide details of their product range, delivery capabilities, and relevant certifications. Further information on the onboarding process for the Mercateo Procurement Platform will be provided upon expression of interest. Unite Procurement UK Limited does not intend to appoint a sole supplier for this requirement. Instead, multiple suppliers may be onboarded to the Mercateo Procurement Platform to ensure a diverse and competitive supply base, supporting flexibility and choice for the Ministry of Defence and associated organisations. Suppliers are encouraged to express their interest by the stated closing date to ensure early consideration. However, applications to join the Mercateo Procurement Platform will be welcome at any time beyond the initial deadline. Unite Procurement UK Limited reserves the right to review and onboard new suppliers on a rolling basis to meet evolving requirements and to maintain a dynamic and responsive supplier network. For any enquiries and expressions of interest, contact defence.support@unite.eu. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/82f3d247-c24e-465f-893c-2635b0028bd1 | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Goods | | Procurement method | Selective | | Procurement method details | Catalogue purchase | | Tender suitability | SME, VCSE | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 17 Nov 2025 | | Submission deadline | 16 Oct 2025 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 19 Oct 2025 - 20 Oct 2028 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £1,350,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | UNITE PROCUREMENT UK LIMITED | | Locality | LONDON | | Post town | Central London | | Postcode | WC2B 5AH | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI3 Inner London - West | | ITL 3 | TLI36 Camden | | Local authority | Camden | | Electoral ward | Holborn & Covent Garden | | Westminster constituency | Holborn and St Pancras | | Delivery location | Not specified | ## CPV Codes ### Divisions - 14 - Mining, basic metals and related products - 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus) ### Codes - 14210000 - Gravel, sand, crushed stone and aggregates - 44114100 - Ready-mixed concrete ## Release History - 17 Nov 2025 at 09:48 - TenderAmendment - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/82f3d247-c24e-465f-893c-2635b0028bd1 - 30 Sep 2025 at 11:46 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/82f3d247-c24e-465f-893c-2635b0028bd1 ## Documents - https://www.contractsfinder.service.gov.uk/Notice/82f3d247-c24e-465f-893c-2635b0028bd1 17th November 2025 - Opportunity notice on Contracts Finder - https://unite.eu/en-gb/procure/join-mercateo-as-a-supplier This link provides suppliers with information on how to join the Mercateo Procurement Platform. It explains the benefits of becoming a supplier, outlines the registration process, and details how your products can be made available to a wide range of public and private sector buyers through the platform. ## Notice URLs - http://www.mercateo.co.uk ## 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-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-420edbf8-2f75-40bc-885b-3d49507c173a.json.