Find a TenderPlanned procurementPreliminary market engagement notice
Published 8 Sept 2026, 13:56 BST

Official UK procurement notice

RFI - Proposed removal of oil from the wreck of HMS CASSANDRA - Baltic.

Authority: National Armament Director Group (Central government)

ServicesAbove thresholdDefence & securitySME suitableVCSE suitable
Planned pipeline value£30,000,000pipeline notice, not a live tender
Tender notice expected 1 Apr 2027from the planned procurement notice
Contract term 1 yrends 1 Apr 2029 · starts 1 Apr 2028

What is being bought

Published requirement description

A Request for Information (RFI) in connection with the removal and disposal of the oil remaining on the wreck of HMS CASSANDRA, a WWI era Royal Navy cruiser sunk off the coast of Estonia in the Baltic Sea on 05 December 1918 after striking a naval mine. The wreck is at an approximate depth of 95 to 100 metres (312 to 328 feet) beneath the water surface, part buried in the seabed on its starboard side in position 58.47783° N / 21.2280° E.

Photogrammetry of HMS CASSANDRA is available at:

oceandiscovery.org/en/projekt/hms-cassa… ↗

Upon written request to [email protected], copies of the latest HMS CASSANDRA survey report are available for purpose of informing a response to this RFI.

CPV: Marine survey services · Oil spillage control services · Quantity surveying services · ROV services · Vessel-salvaging services

The lotProcurement structure

single lot · no lot value published
Lot #1Planned 1 yrSMEVCSE

Pipeline intelligence · planning stage: how this market runs before the tender is published

How National Armament Director Group buys Support services for water transport (CPV 6372): the notice lists a non-UK location

No market comparison: the notice lists a non-UK delivery location. Frameworks and DPS are left out: they draw different bid counts. Whole-market view: Support services for water transport (CPV 6372) →

1

How the contest usually goes

Winner shares use published awards; bid and price charts use contested lots.

Question for the bid
This buyerNational Armament Director Group · all categories
The marketDelivery in Estonia
What to do with it
How often do SMEs win?
i

How often small and medium firms win.

Share of awards where the winner’s size is known.

The counts under this question show how many awards have a known supplier size.

Last 36 months.

Buyer: 37 of 109 known-size awards · market: not compared
34%—

Small firms have won here. Neither number says whether you qualify; it describes who has been winning.

How often do local suppliers win?
i

How often local firms win similar work.

Winners with a registered address in the delivery region, out of awards with a known address.

Local means the winner is registered in the region where that award was delivered.

A local branch does not count if the registered address is elsewhere.

Last 36 months.

Buyer: 2 of 12 known-location awards · market: not compared
17%—

The notice lists delivery in Estonia, so this procedure has no confirmed single UK region; the buyer’s figure reads its other awards, each against its own delivery region.

How long to a decision?
i

How long buyers here take to decide after bids close.

Middle value in days from the bid deadline to the award date, on competitions that published both.

Only decided tenders count, so slow ones still waiting are not in.

Last 36 months.

Buyer: 21 decided notices · market: not compared
65 days—

Half of these awards have an award date within 65 days of the bid deadline.

How often single-bid or direct?
i

How often work is awarded with no recorded rival.

Direct awards and tenders where every published lot count shows one bid.

The buyer’s share is a minimum: some awards have no bid count.

Thin markets produce this too; it is not proof of a tailored specification.

Last 36 months.

Buyer: at least 158 of 172 procurements with awards had no recorded rival · market: not compared
92%—

Direct awards or one recorded bid are common here. Check the route before spending time on a bid.

How many bids did past lots attract?

i

How many bids past lots received.

Each colour is a bid-count range. Only competed lots with a published count are included.

Past bids do not predict this tender.

Last 36 months.

This buyer20 lots with bid counts · all categories
55% had one bid
The marketNot compared: the notice lists Estonia
Buyer · select a colour for counts
1 bid55%
Buyer: 11 of 20 lots with published bid counts.
2–330%
Buyer: 6 of 20 lots with published bid counts.
4–610%
Buyer: 2 of 20 lots with published bid counts.
7+5%
Buyer: 1 of 20 lots with published bid counts.

How did awards compare with estimates?

i

Where winning prices landed against estimates.

Each colour shows awards below, close to or above the published estimate, one lot at a time.

Past prices are a guide, not a bid price.

Last 36 months.

This buyer14 lots with estimate and award · all categories
43% below estimate
The marketNot compared: the notice lists Estonia
Buyer · select a colour for counts
Below estimate43%
Buyer: 6 of 14 lots with an estimate and award.
Within ±2%36%
Buyer: 5 of 14 lots with an estimate and award.
Above estimate21%
Buyer: 3 of 14 lots with an estimate and award.
2

Assess each lot
i

What past awards tell you about each lot.

See the forecast, this buyer’s earlier suppliers and firms with relevant wins.

No supplier is confirmed as a bidder.

Open a lot for its forecast, this buyer’s previous supplier and possible competitors, from published award history, not a bid list

Lot #112 monthsSME suitablePublished estimate£30m

This lot lists only non-UK delivery addresses. Supplier examples below come from UK award history and are not checked for this delivery area.

Expected competition
i

How many bids this lot may attract.

The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.

This lot has only non-UK delivery countries in its published addresses, so the UK model forecast is withheld.

A forecast, not a list of bidders.

—Non-UK location in notice
This lot lists only non-UK delivery addresses. Check the tender documents for the actual site; no UK competition forecast is shown.
Commercial price forecast
i

Where the award price may land.

The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.

No comparable awards for this lot yet.

A statistical guide from past awards, not a price to bid.

—Non-UK location in notice
This lot lists only non-UK delivery addresses. Check the tender documents for the actual site; no UK price forecast is shown.

Who has supplied this buyer on similar work?
i

Who has done similar work for this buyer.

Past contracts are matched by buyer, title and type of work.

A past supplier may not bid again.

No earlier contract of this buyer matches this lot on the published record.

Who could compete for this lot?
i

Who could compete for this lot?

Firms with relevant past wins. On a framework, we show firms on that agreement.

None is confirmed as a bidder.

Candidate suppliers for this notice have not been worked out yet, so this is not a verdict that nobody fits.

About this data
  • Source. Official UK public procurement notices (Find a Tender), reused under the Open Government Licence v3.0. New notices arrive through the day; the figures are rebuilt nightly.
  • Two views, kept apart. The authority’s own track record and the wider market for the same kind of work sit side by side and are never mixed. Where the local picture is too thin, a figure widens to a broader market and says which one it used.
  • Forecasts are labelled. The price forecast and its range, possible competitors and the earlier-work matches are our estimates from past awards: not published facts, not win chances and not price advice. Official notices do not say who is bidding.
  • Every figure shows what it rests on. Not every notice publishes a bid count, a value or a delivery region, so each figure carries the number of records behind it, and one built on few records is marked as such. The on a figure explains it; the counting rules are in the methodology. Spotted something wrong? Tell us.

Procedure terms & legal framework

From the official record
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Services
Notice status
Planned procurement
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Defence & security
Commercial structure
Stand-alone contract (no framework)
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
Unspecified in notice
First published
8 Sept 2026, 13:56 BST
Last source update
9 Oct 2026, 11:49 BST
Authority reference
715904560
FTS notice number
2026/S 000-095595
Latest notice
Preliminary market engagement notice (UK2)
Classification (CPV)
Marine survey servicesOil spillage control servicesQuantity surveying servicesROV servicesVessel-salvaging services
Delivery area in notice
Estonia (EE)
Official registry OCID
ocds-h6vhtk-06f491 Find a Tender

How it was run

Official notice
Submission deadline
—

Timeline

8 Sept 2026 → 1 Apr 2028 · 5 dates
  1. Planning notice published48 days ago
    8 Sept 2026, 13:56 BST
  2. Latest notice published17 days ago
    9 Oct 2026, 11:49 BST
  3. Today
    26 Oct 2026
  4. Market engagementin 5 days
    30 Oct 2026, 23:59 GMT

    The Contracting Authority seeks information on Industry’s capability and approaches to removal and disposal of the oil remaining on the wreck of HMS CASSANDRA.

    Accordingly, suppliers are invited to respond to this RFI outlining methods for:

    1. Oil removal from the exposed port side tanks and the accessible starboard tank at the stern.
    2. In particular addressing how they would deliver such requirement as a two-stage project:

    a. Stage 1 (Viability Assessment): Determination of whether the hull of the wreck retains sufficient strength to enable an oil removal (hot-tapping) operation to be safely and successfully undertaken. This stage will conclude with a go/no-go decision on whether to proceed with oil removal based on the assessment of the data collected.

    b. Stage 2 (Intervention): Remove the oil, with appropriate environmental safeguards in place, and safely dispose of the oil in accordance with appropriate legislation.

    Note: It is envisaged that Stages 1 and 2 will comprise separate deployments to the wreck, potentially separated by a period of several weeks or months. This is to allow a fully informed go/no-go decision based on the results of Stage 1 and, if the decision is made to proceed with the oil removal, time to plan in detail and enact the operation.

    Furthermore, suppliers are kindly requested to provide a Rough Order of Magnitude (RoM) cost for performance of the relevant work in line with the methods they have outlined.

    Suppliers are requested to email their responses to this RFI to [email protected] by the applicable engagement deadline.

    The Contracting Authority has not specified a format for any response as this can limit creativity and make it difficult to understand. Therefore, suppliers are free to present information in their preferred format, provided it is compatible with MS Office. To minimise the need for further clarification, suppliers are encouraged to clearly detail any relevant methodologies, anticipated processes, key assumptions (including applicable environmental safeguards, laws, and regulations), and dependencies, as appropriate.

    If suppliers have any questions to inform an RFI response, these can be submitted to [email protected]. To ensure transparency of information, any questions and answers will be published in an anonymised format. Suppliers are therefore encouraged not to include the identity of their organisation within the content of any question. If a supplier believes that a particular question should not be published, they must inform the Contracting Authority of such when asking the question. Publication of the question and response will be at the sole discretion of the Contracting Authority, provided that a supplier may withdraw its question any time prior to receipt of a response.

    The Contracting Authority reserves the right to clarify the contents of any RFI response received with the originator. In doing so, the Contracting Authority will act proportionately and seek to minimise the burden on suppliers who have voluntarily responded to this RFI.

    This RFI is issued solely for information, market research, and planning purposes. It does not constitute a formal solicitation, Request for Proposal (RFP), or obligation to contract. The Authority shall not be liable for any costs incurred in the preparation of responses.

    Any cost information contained in an RFI response and any information furnished by the Contracting Authority in connection with this notice—excluding the notice itself and any public data accessible through hyperlinks embedded within the notice—shall be treated as strictly confidential by the recipient. The recipient shall not disclose such information to any third party without prior written consent of the originator, provided that this shall in no way limit the ability of the Contracting Authority to disclose such information to its officers, employees, agents or advisers or other UK government departments or the Estonian government.

    By submitting a response, each respondent grants the Contracting Authority a non-exclusive, royalty-free, perpetual, and worldwide licence to use, reproduce, and distribute the submitted information for evaluation, feasibility assessment, and the drafting of subsequent procurement documents and to enable third parties to use, reproduce, and distribute the submitted information on behalf of the Contracting Authority for the same purposes. Provided that any cost information shall be subject always to the foregoing confidentiality obligation.

    For the avoidance of doubt, responses to this RFI will be used by or on behalf of the Authority solely for the purposes of preliminary market engagement, as defined in Regulation 16 of the Procurement Act 2023.

    The associated opportunity listing is accessible at: contracts.mod.uk/esop/guest/go/opport… ↗

  5. Tender notice expectedin 158 days
    1 Apr 2027, 23:59 BST
  6. Contract starts
    1 Apr 2028, 00:00 BST

Notice history

2 events · 2 releases on Find a Tender · since 8 Sept 2026
  1. Preliminary market engagement notice published
    8 Sept 2026, 13:56 BST
    UK2
  2. Preliminary market engagement notice published
    9 Oct 2026, 11:49 BST
    UK2
Published amendments (1)

Amendment to engagement deadline.

Commercial outcome & contract awards

Pipeline notice
Awards (0)
No award published
Contracts (0)
No contract published
Bid statistics
No aggregate bid statistics published

Contracting authority & participating public bodies

National Armaments Director Group (formerly Defence Equipment and Support)

Contracting authorityPublic authority - central government GB-PPON: PVRL-5831-GLMM MOD Abbey Wood, Bristol, South West, BS34 8JHContact name, email

Official documents & specifications (2)

Official links; attachments are not copied

Notices published for this procedure