Insurance due diligence report Draft

Thornbury Precision Components Ltd

Acquisition by Ardenwood Capital Partners LLPM&A Advisory Practice

Marsh reference
IDD-2026-TPC-001
Prepared
29 October 2026
Expected completion
31 March 2027
Private & Confidential
Ardenwood Capital Partners LLP

Deal overview

RAG risk assessment — major categories

  1. Red

    Programme adequacy

    Critical gaps in product recall, cyber (£5M — grossly inadequate), excess/umbrella. No standalone programme exists. Group placement terminates at close.

    Coverage gaps
  2. Amber

    Claims experience

    One material open claim (£2.1M aerospace recall) with 2–4× adverse development risk. 5-year loss history not available — cannot verify frequency or severity trends.

    Open claim
  3. Amber

    Cost of risk transparency

    Group allocation (£3.9M) obscures true standalone cost. IPT, broker fees, retained losses likely under-expensed. EBITDA adjustment required: £0.6M–£2.1M p.a.

    EBITDA scenarios
  4. Red

    Deal transition risk

    Complete programme replacement required. Retroactive dates at risk on claims-made lines. Local admitted compliance unconfirmed (Germany, Poland, Mexico). No transition planning commenced.

    Current programme
  5. Red

    Uninsured exposure

    Product recall (catastrophic: £10M–£50M+). Cyber gap (£10M–£20M uninsured). Mexican site environmental liability unquantified. IBNR £2.85M–£9.7M on long-tail lines.

    IBNR by line

Top 5 material findings impacting deal value

  1. Finding1

    Red

    Complete programme replacement at close

    All 8+ lines embedded in seller’s group Gallagher placement. Every policy terminates on 80% change of control. Full standalone programme across 4 jurisdictions required Day 1. Lead time: 8–12 weeks minimum.

    Current programme
    One-off
    £1.8M–£3.8M
    Recurring
    £0.3–1.3M p.a.
  2. Finding2

    Red

    No product recall insurance — largest uninsured exposure

    Safety-critical aerospace and automotive supply. Active recall claim (£2.1M reserved) confirms real risk. First-party recall costs excluded from standard PL policies. Rec. limit: £15M–£25M.

    Gap G-1
    Single event
    £5M–£50M+
    Annual premium to close
    £150–300K
  3. Finding3

    Red

    Retroactive-date gap — claims-made policies

    D&O, PI, Cyber, EIL retroactive dates held at group level. Standalone policies at close will carry inception-date retros, creating an uninsured gap for all pre-close wrongful acts.

    SPA recommendation 3
    Uninsured legacy
    £5M–£15M
    Tail/ERP to mitigate
    £0.9–1.4M
  4. Finding4

    Red

    Open aerospace recall claim (£2.1M) — likely under-reserved

    Aerospace PL claims develop 2–4× from initial reserve. Allocation unaddressed in SPA. Change-of-control provisions may jeopardise coverage continuation post-close.

    Open claim
    Adverse dev
    up to £4M–£10M
    SPA specific indemnity required
  5. Finding5

    Amber

    EBITDA adjustment required for true standalone cost

    Current P&L reflects group-allocated premiums (~£3.45M). True all-in cost of risk (premiums + retained losses + IPT + fees + additional covers) estimated £4.2M–£5.2M in Year 1.

    EBITDA scenarios
    Recurring drag
    £0.3–1.3M p.a.
    EV impact at 8.5×
    £2.6–11.1M

Financial impact & premium analysis

MeasureLowMidHighRange on a common scale
Recurring annual EBITDA adj.£0.3M£0.8M£1.3M
EV impact of recurring adj. (8.5×)£2.6M£6.8M£11.1M
One-off transaction costs£1.8M£2.8M£3.8M
Total estimated financial impact1.7% – 5.9% of £420M EV (mid 3.8%)£7.3M£15.9M£24.6M
Ranges share one £0–25M scale; the dot marks the mid estimate.

Current premium breakdown — group allocation (est. £3.45M)

LinePremium, barEst. premium% of total
Property & BI£1,250K
Combined Liability£950K
Marine Cargo£280K
PI (Design Liability)£260K
D&O£220K
Motor Fleet£185K
Cyber (£5M — inadequate)£175K
EIL£130K
Total premiums [E]£3,450K

3-year standalone cost of risk projection (£000s)

EBITDA sensitivity & transaction costs

Adjusted EBITDA scenarios (implied EV at 8.5×)

ScenarioAdjusted EBITDA on a scaleAdj. EBITDAImplied EVEBITDA adj.
Reported (No adj.)£49.4M£420.0M—
Low adj.£48.8M£414.9M−£0.6M
Mid adj. (Base case)£48.0M£408.5M−£1.4M
High adj.£47.3M£402.1M−£2.1M
Max EV reduction£17.9M

One-off transaction costs breakdown (£000s)

ItemLowMidHighRange on a common scale
D&O run-off tail (6–7yr)£350K£450K£550K
W&I insurance (~£105M limit)£1,050K£1,575K£2,100K
Stub-period standalone cover—£75K£150K
Collateral / LOC replacement—£250K£500K
Retro date / ERP protection£75K£138K£200K
Transaction broker fees£150K£200K£250K
IPT on transaction policies£60K£80K£100K
Total£1,735K~£2,768K£3,850K

Where no low estimate is given, the range is drawn from £0.

SPA escrow recommended: £3M–£5M holdback for PL claim adverse development, Mexican environmental remediation, and IBNR crystallisation. Release upon claim resolution or 24–36 months post-close.

Insurance programme & coverage gaps

Current programme — estimated standalone annual premiums (Section 4)

#LineTerminates at closeStandalone est.Range on a common scaleTimelinePriority
1Property & BIYes£850K–£1,050K8–12 wksCritical
2Combined Liability (PL/Products/EL)Yes£620K–£780K8–12 wksCritical
3D&O LiabilityYes£180K–£240K6–8 wksCritical
4Cyber (£5M → £15–20M)Yes£160K–£220K6–8 wksHigh
5Marine CargoYes£90K–£130K4–6 wksMedium
6Motor FleetYes£110K–£150K4–6 wksMedium
7PI — Design LiabilityYes£140K–£200K6–8 wksHigh
8Environmental Impairment (EIL)Yes£180K–£260K8–12 wksCritical
Total£2,330K–£3,030K
All-in cost (incl. SIRs, tail, fees)£3,100K–£3,800K

Critical coverage gaps register

  1. G-1Critical

    Product recall / contaminated products

    No standalone recall policy identified. Standard PL excludes withdrawal, inspection, rework, replacement, customer BI. Single-event exposure: £10M–£50M+ (aerospace). Rec. limit: £15M–£25M. Annual premium: £150K–£300K.

  2. G-2Critical

    Cyber liability limit inadequacy (£5M vs £15–25M needed)

    £5M confirmed limit materially below benchmark for £248M-revenue OT/ICS manufacturer across 6 sites. Ransomware event could exhaust first-party BI alone. Uninsured gap: £10M–£20M.

  3. G-3High

    No excess / umbrella liability tower

    No umbrella/excess mentioned. Safety-critical aerospace and automotive supply demands robust excess tower. Benchmark: £25M–£50M xs primary CGL/products. Annual premium: £200K–£350K.

  4. G-6High

    Workers compensation Mexico (Riesgo de Trabajo / IMSS)

    No Mexican WC/EL policy identified. Statutory compliance unconfirmed. Non-compliance with IMSS risk-premium obligations creates regulatory liability.

  5. G-7High

    Local admitted policies (Germany, Poland, Mexico)

    Post-close, admitted policies required in each jurisdiction for compulsory lines. Group master lapsing without local replacements = bare periods of statutory non-compliance.

  6. G-4Medium

    Trade credit insurance not in place

    Not listed. Recommended given likely concentrated OEM customer base and automotive sector cyclicality. Assess if top customers exceed 20% of revenue.

Claims & reserve adequacy

Open claims register & adverse development risk

TPC-PL-001

Aerospace bracket recall

Products LiabilityStatus: OpenAccident year: Est. 2024/25

£2,100,000Current reserve

Development factor
2–4×
Aerospace sector
Adverse scenario
£4–10M
Ultimate potential
SPA indemnity
Required
Uncapped or ≥£10M

Risk: Change-of-control clause may jeopardise coverage continuation. EASA/FAA regulatory action could expand recall scope. OEM consequential-loss recovery likely.

IBNR exposure estimate by line (midpoint: ~£6.3M)

LineRange on a common scaleLowHighConcern
Products Liability (Aerospace)£1.5M£4.0MCritical
Environmental (Mexico)£0.5M£3.0MCritical
Employers’ Liability£0.5M£1.5MHigh
PI (Design Liability)£0.3M£1.0MMedium
Motor Fleet£0.05M£0.2MLow
Total IBNR estimate£2.85M£9.7M

Key SPA recommendations (critical items)

SPA clause recommendations — critical priority

#IssueSPA clause recommendationPriority
1Insurance maintenance covenantSeller warrants maintenance of all existing coverage through close without reduction or lapseCritical
2D&O run-off tailSeller obligation to bind 6–7 year D&O run-off at or before close; cost responsibility specified (est. £350K–£550K)Critical
3Claims-made tail / run-offSeller to procure tail on PI, Cyber, EIL with retroactive dates preserved; minimum 6-year survivalCritical
4Aerospace recall claim indemnitySpecific seller indemnity for open £2.1M claim incl. adverse development; uncapped or ≥£10M; 7-year survivalCritical
5Environmental indemnity — MexicoSeller indemnity for pre-close contamination (known & unknown); 10-year survival; cap ≥£5M–£15M; consider escrowCritical
6Escrow / holdbackEscrow of £3M–£5M for PL claim adverse dev., Mexican environmental remediation, IBNR crystallisation. Release: claim resolution or 24–36 months post-closeCritical
7W&I policy interactionEnsure W&I dovetails with SPA warranties; specific SPA indemnities excluded from W&I cap so seller retains direct liabilityCritical
8CP — standalone programmeCondition precedent requiring standalone programme bound before close to buyer’s reasonable satisfactionHigh

Immediate actions required

Critical path actions — next 30 days

  1. 1

    Obtain all group policy schedules, wordings, endorsements & retroactive dates from Gallagher

    Owner: Marsh IDD / Seller / GallagherStatus: Not started

    Deadline: 5 Nov 2026

  2. 2

    Obtain 5-year loss runs (all lines, accident-year basis, valued ≤90 days)

    Owner: Marsh IDD / GallagherStatus: Not started

    Deadline: 5 Nov 2026

  3. 3

    Review and amend draft SPA insurance clauses per Section 4.7 recommendations (15 items)

    Owner: Legal counsel / MarshStatus: Not started

    Deadline: 12 Nov 2026

  4. 4

    Commission standalone programme marketing — 8+ lines, 4 jurisdictions; engage Marsh placement

    Owner: Marsh placement / ArdenwoodStatus: Not started — Commence immediately

    Deadline: Immediate

  5. 5

    Commission Phase I ESA for Mexican manufacturing site

    Owner: Ardenwood / environmental consultant6–8 week turnaround

    Deadline: Immediate

  6. 6

    Confirm retroactive dates on claims-made policies; negotiate tail/ERP provisions in SPA

    Owner: Marsh / Legal counselStatus: Not started

    Deadline: 12 Nov 2026

  7. 7

    Map top 10 customer contract insurance requirements to standalone programme design

    Owner: Marsh IDD / ArdenwoodStatus: Not started

    Deadline: 19 Nov 2026

  8. 8

    Commission actuarial IBNR analysis (subject to receipt of loss data)

    Owner: Ardenwood / appointed actuaryStatus: Blocked — awaiting loss runs

    Deadline: Upon data receipt

Recommendations tracker summary (31 total)

PriorityCountKey themes
Critical9Data gaps; programme replacement; product recall; cyber; retro dates; open PL claim; Mexico env.; D&O tail; IBNR
High / Amber13Excess liability; local compliance; EBITDA adjustment; contractual mapping; SPA; W&I; collateral; stub period
Medium / Low9Trade credit; supply chain BI; SIR sensitivity; leakage; captive; IP; pandemic; ESG

Data availability note: This report is based solely on the Deal Intake form dated 29 October 2026. No policy schedules, loss runs, audited accounts, or SPA drafts were reviewed. All financial figures are analyst estimates [E] from sector benchmarking. Report must be re-validated upon receipt of underlying documentation. No definitive coverage opinion can be issued until actual policy wordings are reviewed.

Draft — important limitations

This report is based solely on the Deal Intake form dated 29 October 2026. No policy schedules, wordings, loss runs, audited accounts, or draft SPA were reviewed. All quantified findings are analyst estimates [E] derived from sector benchmarking for UK-headquartered precision-manufacturing businesses. This report must be re-validated once underlying documents are provided. No definitive coverage opinion can be issued until actual policy wordings are reviewed. Prepared solely for the use of Ardenwood Capital Partners LLP. Not for reliance by any third party without Marsh’s prior written consent.