Silverfin false false 31/12/2024 01/01/2024 31/12/2024 Mr S R Craib 15/07/2025 Mr T M Horsfall 12/11/2025 15/07/2025 Ms R L Johnson 12/11/2025 Mr N Mahjoub 15/07/2025 13/04/2016 Mr J G Oag 15/07/2025 04/04/2016 Mr M J Sibson 19/02/2025 13/04/2016 Mr R K Strachan 15/07/2025 04/04/2016 Mr G Thomson 15/07/2025 Mr J J Welsh 15/07/2025 28/04/2023 23 December 2025 The principal activity of the Company continued to be that of providing management and support services to subsidiaries. SC528327 2024-12-31 SC528327 bus:Director1 2024-12-31 SC528327 bus:Director2 2024-12-31 SC528327 bus:Director3 2024-12-31 SC528327 bus:Director4 2024-12-31 SC528327 bus:Director5 2024-12-31 SC528327 bus:Director6 2024-12-31 SC528327 bus:Director7 2024-12-31 SC528327 bus:Director8 2024-12-31 SC528327 bus:Director9 2024-12-31 SC528327 2023-12-31 SC528327 core:CurrentFinancialInstruments 2024-12-31 SC528327 core:CurrentFinancialInstruments 2023-12-31 SC528327 core:Non-currentFinancialInstruments 2024-12-31 SC528327 core:Non-currentFinancialInstruments 2023-12-31 SC528327 core:ShareCapital 2024-12-31 SC528327 core:ShareCapital 2023-12-31 SC528327 core:SharePremium 2024-12-31 SC528327 core:SharePremium 2023-12-31 SC528327 core:OtherCapitalReserve 2024-12-31 SC528327 core:OtherCapitalReserve 2023-12-31 SC528327 core:RetainedEarningsAccumulatedLosses 2024-12-31 SC528327 core:RetainedEarningsAccumulatedLosses 2023-12-31 SC528327 core:LeaseholdImprovements 2023-12-31 SC528327 core:PlantMachinery 2023-12-31 SC528327 core:LeaseholdImprovements 2024-12-31 SC528327 core:PlantMachinery 2024-12-31 SC528327 core:CostValuation 2023-12-31 SC528327 core:CostValuation 2024-12-31 SC528327 bus:OrdinaryShareClass1 2024-12-31 SC528327 bus:OrdinaryShareClass2 2024-12-31 SC528327 bus:OrdinaryShareClass3 2024-12-31 SC528327 bus:OrdinaryShareClass4 2024-12-31 SC528327 bus:OrdinaryShareClass5 2024-12-31 SC528327 2024-01-01 2024-12-31 SC528327 bus:FilletedAccounts 2024-01-01 2024-12-31 SC528327 bus:SmallEntities 2024-01-01 2024-12-31 SC528327 bus:AuditExemptWithAccountantsReport 2024-01-01 2024-12-31 SC528327 bus:PrivateLimitedCompanyLtd 2024-01-01 2024-12-31 SC528327 bus:Director1 2024-01-01 2024-12-31 SC528327 bus:Director2 2024-01-01 2024-12-31 SC528327 bus:Director3 2024-01-01 2024-12-31 SC528327 bus:Director4 2024-01-01 2024-12-31 SC528327 bus:Director5 2024-01-01 2024-12-31 SC528327 bus:Director6 2024-01-01 2024-12-31 SC528327 bus:Director7 2024-01-01 2024-12-31 SC528327 bus:Director8 2024-01-01 2024-12-31 SC528327 bus:Director9 2024-01-01 2024-12-31 SC528327 core:LeaseholdImprovements core:TopRangeValue 2024-01-01 2024-12-31 SC528327 core:PlantMachinery core:TopRangeValue 2024-01-01 2024-12-31 SC528327 2023-01-01 2023-12-31 SC528327 core:CurrentFinancialInstruments 2024-01-01 2024-12-31 SC528327 core:Non-currentFinancialInstruments 2024-01-01 2024-12-31 SC528327 bus:OrdinaryShareClass1 2024-01-01 2024-12-31 SC528327 bus:OrdinaryShareClass1 2023-01-01 2023-12-31 SC528327 bus:OrdinaryShareClass2 2024-01-01 2024-12-31 SC528327 bus:OrdinaryShareClass2 2023-01-01 2023-12-31 SC528327 bus:OrdinaryShareClass3 2024-01-01 2024-12-31 SC528327 bus:OrdinaryShareClass3 2023-01-01 2023-12-31 SC528327 bus:OrdinaryShareClass4 2024-01-01 2024-12-31 SC528327 bus:OrdinaryShareClass4 2023-01-01 2023-12-31 SC528327 bus:OrdinaryShareClass5 2024-01-01 2024-12-31 SC528327 bus:OrdinaryShareClass5 2023-01-01 2023-12-31 SC528327 1 2024-01-01 2024-12-31 iso4217:GBP xbrli:pure xbrli:shares

Company No: SC528327 (Scotland)

SPEX GROUP HOLDINGS LIMITED

UNAUDITED FINANCIAL STATEMENTS
FOR THE FINANCIAL YEAR ENDED 31 DECEMBER 2024
PAGES FOR FILING WITH THE REGISTRAR

SPEX GROUP HOLDINGS LIMITED

UNAUDITED FINANCIAL STATEMENTS

FOR THE FINANCIAL YEAR ENDED 31 DECEMBER 2024

Contents

SPEX GROUP HOLDINGS LIMITED

BALANCE SHEET

AS AT 31 DECEMBER 2024
SPEX GROUP HOLDINGS LIMITED

BALANCE SHEET (continued)

AS AT 31 DECEMBER 2024
Note 2024 2023
£ £
Fixed assets
Investments 5 34,569 34,569
34,569 34,569
Current assets
Debtors 6 20,079,480 17,859,256
Cash at bank and in hand 79,422 55,055
20,158,902 17,914,311
Creditors: amounts falling due within one year 7 ( 8,936,504) ( 844,231)
Net current assets 11,222,398 17,070,080
Total assets less current liabilities 11,256,967 17,104,649
Creditors: amounts falling due after more than one year 8 ( 3,792,914) ( 9,571,594)
Net assets 7,464,053 7,533,055
Capital and reserves
Called-up share capital 9 437 421
Share premium account 7,809,913 7,310,370
Other reserves 2,703,700 2,403,925
Profit and loss account ( 3,049,997 ) ( 2,181,661 )
Total shareholders' funds 7,464,053 7,533,055

For the financial year ending 31 December 2024 the Company was entitled to exemption from audit under section 477 of the Companies Act 2006 relating to small companies.

Directors' responsibilities:

The financial statements of Spex Group Holdings Limited (registered number: SC528327) were approved and authorised for issue by the Board of Directors on 23 December 2025. They were signed on its behalf by:

Mr S R Craib
Director
SPEX GROUP HOLDINGS LIMITED

NOTES TO THE FINANCIAL STATEMENTS

FOR THE FINANCIAL YEAR ENDED 31 DECEMBER 2024
SPEX GROUP HOLDINGS LIMITED

NOTES TO THE FINANCIAL STATEMENTS

FOR THE FINANCIAL YEAR ENDED 31 DECEMBER 2024
1. Accounting policies

The principal accounting policies are summarised below. They have all been applied consistently throughout the financial year and to the preceding financial year, unless otherwise stated.

General information and basis of accounting

Spex Group Holdings Limited (the Company) is a private company, limited by shares, incorporated in the United Kingdom under the Companies Act 2006 and is registered in Scotland. The address of the Company's registered office is Blackwood House, Union Grove Lane, Aberdeen, AB10 6XU, United Kingdom. The trading address is Ground Floor, Unit 2 Dunnottar House, Howe Moss Drive, Kirkhill Industrial Estate, Aberdeen, AB21 0FN.

The financial statements have been prepared under the historical cost convention, and in accordance with Section 1A of Financial Reporting Standard 102 (FRS 102) ‘The Financial Reporting Standard applicable in the UK and Republic of Ireland’ issued by the Financial Reporting Council and the requirements of the Companies Act 2006 as applicable to companies subject to the small companies regime.

The financial statements are presented in pounds sterling which is the functional currency of the Company and rounded to the nearest £.

Going concern

Subsequent to the year end, on 30th June 2025, Investor Loan Notes of £1.3m were converted to equity as C Ordinary shares and on the same day, the entire share capital of the Company was purchased by Halliburton Global Holdings Limited “Halliburton”.

As part of this transaction, the remaining Investor Loan Notes and related accrued interest balances of £7.1m were repaid in full and the company’s entire share capital was re-designated as and converted into Ordinary shares. This included the conversion of the long-term dividend accrual of £3.8m to equity.

Since the date of acquisition, Halliburton have provided funding to the business, and they have confirmed their willingness to continue to provide ongoing financial support to the Company and its subsidiaries for at least the next 12 months from the date of approval of these financial statements.

In relation to ongoing litigation previously disclosed, the Scottish Court case has exhausted the appeals process by the third party and is considered closed, with awards to the Spex Group Companies. The Directors do not believe any liability to the Spex Group Companies remains pertaining to this matter.

With regards to the ongoing US Civil Case alleging the breach of a license agreement, the US Federal District Court has lifted the stay and allowed a 5th amended complaint to be filled by the Plaintiff. The Defendants have filed a Motion to Dismiss, and the parties await the Court’s ruling on the motion. The Company has not made a provision in the accounts for any related liability, as it does not believe any liability exists.

At the time of approving the financial statements, the Directors have reviewed trading and cashflow forecasts for the next 12 months through to December 2026 and are satisfied that the Company will have sufficient financial resources to continue in operational existence for the foreseeable future.

On this basis, the Directors consider it appropriate to prepare the financial statements on a going concern basis.

Foreign currency

Transactions in foreign currencies are recorded at the rate of exchange at the date of the transaction. Monetary assets and liabilities denominated in foreign currencies at the Balance Sheet date are reported at the rates of exchange prevailing at that date.

Exchange differences are recognised in the Profit and Loss Account in the period in which they arise except for exchange differences arising on gains or losses on non-monetary items which are recognised in the Statement of Comprehensive Income.

Turnover

Turnover is recognised as services are provided at the fair value of the consideration received or receivable for services provided in the normal course of business, and is shown net of VAT and other sales related taxes.

Employee benefits

Short term benefits
The costs of short-term employee benefits are recognised as a liability and an expense, unless those costs are required to be recognised as part of the cost of stock or fixed assets.

The cost of any unused holiday entitlement is recognised in the period in which the employee’s services are received.

Termination benefits are recognised as an expense when the company is demonstrably committed to terminate the employment of an employee or to provide termination benefits.

Defined contribution schemes
The Company operates a defined contribution scheme. The amount charged to the Profit and Loss Account in respect of pension costs and other post-retirement benefits is the contributions payable in the financial year.

Taxation

Current tax
Current tax is provided at amounts expected to be paid (or recoverable) using the tax rates and laws that have been enacted or substantively enacted at the Balance Sheet date.

Deferred tax
Deferred tax arises as a result of including items of income and expenditure in taxation computations in periods different from those in which they are included in the Company's financial statements. Deferred tax is provided in full on timing differences which result in an obligation to pay more or less tax at a future date, at the average tax rates that are expected to apply when the timing differences reverse, based on current tax rates and laws. Deferred tax assets and liabilities are not discounted.

The carrying amount of deferred tax assets are reviewed at each reporting date and a valuation allowance is set up against deferred tax assets so that the net carrying amount equals the highest amount that is more likely than not to be recovered based on current or future taxable profit.

Tangible fixed assets

Tangible fixed assets are stated at cost, net of depreciation and any provision for impairment. Depreciation is provided on all tangible fixed assets, at rates calculated to write off the cost or valuation, less estimated residual value, of each asset on a straight-line or reducing balance basis over its expected useful life, as follows:

Leasehold improvements 4 years straight line
Plant and machinery 4 years straight line

The gain or loss arising on the disposal of an asset is determined as the difference between the sale proceeds and the carrying value of the asset, and is credited or charged to profit or loss.

Leases

The Company as lessee
Rentals under operating leases are charged on a straight-line basis over the lease term, even if the payments are not made on such a basis. Benefits received and receivable as an incentive to sign an operating lease are similarly spread on a straight-line basis over the lease term.

Impairment of assets

Assets, other than those measured at fair value, are assessed for indicators of impairment at each Balance Sheet date. If there is objective evidence of impairment, an impairment loss is recognised in the Profit and Loss Account as described below.

Non-financial assets
At each balance sheet date, the company reviews its tangible to determine whether there is any indication that those assets have suffered an impairment loss.

If any such indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment loss (if any). The recoverable amount of an asset is the higher of its fair value less costs to sell and its value in use. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted.

Where it is not possible to estimate the recoverable amount of an individual asset, the company estimates the recoverable amount of the cash-generating unit to which the asset belongs. An impairment loss is recognised immediately in profit or loss, unless the relevant asset is carried at a revalued amount, in which case the impairment loss is treated as a revaluation decrease.

Fixed asset investments

Interests in subsidiaries, associates and jointly controlled entities are initially measured at cost and subsequently measured at cost less any accumulated impairment losses. The investments are assessed for impairment at each reporting date and any impairment losses or reversals of impairment losses are recognised immediately in profit or loss.

A subsidiary is an entity controlled by the company.

Cash and cash equivalents

Cash and cash equivalents are basic financial assets and include deposits held at call with banks with original maturities of three months or less.

Financial instruments

Financial assets and financial liabilities are recognised when the Company becomes a party to the contractual provisions of the instrument.

Financial liabilities and equity instruments are classified according to the substance of the contractual arrangements entered into. An equity instrument is any contract that evidences a residual interest in the assets of the Company after deducting all of its liabilities.

Financial assets and liabilities are only offset in the Balance Sheet when, and only when there exists a legally enforceable right to set off the recognised amounts and the Company intends either to settle on a net basis, or to realise the asset and settle the liability simultaneously.

Basic financial assets
Basic financial assets, which include debtors and bank balances, are measured at transaction price including transaction costs.

Basic financial liabilities
Basic financial liabilities, including creditors, bank loans and loans from fellow group companies are recognised at transaction price.

Debt instruments are subsequently carried at amortised cost, using the effective interest rate method.

Trade creditors are obligations to pay for goods or services that have been acquired in the ordinary course of business from suppliers. Amounts payable are classified as current liabilities if payment is due within one year or less.

Equity instruments
Equity instruments issued by the Company are recorded at the fair value of cash or other resources received or receivable, net of direct issue costs. If payment is deferred and the time value of money is material, the initial measurement is on a present value basis. Dividends payable on equity instruments are recognised as liabilities once they are no longer at the discretion of the Company.

2. Critical accounting judgements and key sources of estimation uncertainty

In the application of the Company’s accounting policies, the directors are required to make judgements that have a significant impact on the amounts recognised. The following are the critical judgements that the directors have made in the process of applying the Company’s accounting policies and that have the most significant effect on the amounts recognised in the financial statements.

Going concern:
The going concern assumption is a judgement exercised by the directors (see note 1.2).

Recoverability of group receivables:
The company makes an assessment of the recoverable value of the amounts due from fellow group undertakings. When assessing the recoverability of these amounts owed, management considers factors such as the expected future trading performance of the group.

Contingent Liability:
The directors have made a critical judgement regarding a contingent liability (see note 11).

3. Employees

2024 2023
Number Number
Monthly average number of persons employed by the Company during the year, including directors 11 14

4. Tangible assets

Leasehold improve-
ments
Plant and machinery Total
£ £ £
Cost
At 01 January 2024 31,317 373 31,690
At 31 December 2024 31,317 373 31,690
Accumulated depreciation
At 01 January 2024 31,317 373 31,690
At 31 December 2024 31,317 373 31,690
Net book value
At 31 December 2024 0 0 0
At 31 December 2023 0 0 0

5. Fixed asset investments

Investments in subsidiaries

2024
£
Cost
At 01 January 2024 34,569
At 31 December 2024 34,569
Carrying value at 31 December 2024 34,569
Carrying value at 31 December 2023 34,569

6. Debtors

2024 2023
£ £
Trade debtors 22,466 11,233
Amounts owed by Group undertakings 19,677,578 17,499,136
Corporation tax 37,176 37,176
Other debtors 342,260 311,711
20,079,480 17,859,256

Amounts owed by group undertakings are interest free and repayable on demand. Repayments are not expected within 12 months.

7. Creditors: amounts falling due within one year

2024 2023
£ £
Bank loans 20,012 10,126
Trade creditors 260,855 288,636
Amounts owed to Group undertakings 107,748 118,333
Taxation and social security 31,401 81,302
Other creditors 8,516,488 345,834
8,936,504 844,231

Amounts owed to group undertakings are interest free and repayable on demand. Repayments are not expected within 12 months.

Within other creditors includes loan notes of £4.3m with interest accrued of 12% and a further loan note of £900k with interest accrued of 20%. Both of these loan notes were repaid in full post year end. Subsequent to the year end the following transactions took place:

•Conversion of £1.3m of loan notes to C Ordinary Shares

•Repayment of remaining loan balances and related accrued interest of £7.1m (see note 13 for further information)

8. Creditors: amounts falling due after more than one year

2024 2023
£ £
Bank loans 0 19,882
Other creditors 3,792,914 9,551,712
3,792,914 9,571,594

Other creditors in 2024 include a long term dividend accrual. Subsequent to the year end the following transactions took place:

•Conversion of long term dividend accrual of £3.8m to equity

The bank loan is repayable over 72 months with the first twelve months of interest paid by the government. The bank loan has an interest rate of 2.5% per annum.

9. Called-up share capital

2024 2023
£ £
Allotted, called-up and fully-paid
13,801 'B' ordinary shares of £ 0.01 each (2023: 12,231 shares of £ 0.01 each) 138 122
7,365 'A' ordinary shares of £ 0.01 each 74 74
16,018 Ordinary shares of £ 0.01 each 160 160
6,284 'A1' ordinary shares of £ 0.01 each 63 63
435 419
Allotted, called-up and not yet paid
142 Ordinary (unpaid) shares of £ 0.01 each 1 1

During the year, 1570 B Ordinary shares of 1p each were issued during the year for a consideration of £499k.

Furthermore, during the year share options of 942 were granted over the A Ordinary shares and other equity of £299k was recognised accordingly. These are exit only options and the consideration has been paid up front.

142 Ordinary shares have been issued as NIL paid shares. The remainder of the share capital is fully paid.

Enhanced voting shares are attached to the A Ordinary shares, whereby the voting rights are increased to 51% of the voting rights attached to all the shares in the capital of the company, upon notice of an Enhanced Voting Event.

On 30th June 2025, loan note balances of £1.3m were converted to equity as C Ordinary shares. At the same time, the rights associated with certain share classes were varied, such that the new C Ordinary shares (noted above) held a preferential 1st ranking.

On the same day, the entire share capital of the company was re-designed and converted into a single class of Ordinary shares.

10. Financial commitments

Commitments

2024 2023
£ £
Total future minimum lease payments under non-cancellable operating leases 52,191 76,394

Other financial commitments

The bank hold a bond and floating charge over the whole assets of the company.

11. Contingencies

Contingent liabilities

In relation to ongoing litigation previously disclosed, the Scottish Court case has exhausted the appeals process by the third party and is considered closed, with awards to the Spex Group Companies. The Directors do not believe any liability to the Spex Group Companies remains pertaining to this matter.

With regards to the ongoing US Civil Case alleging the breach of a license agreement, the US Federal District Court has lifted the stay and allowed a 5th amended complaint to be filled by the Plaintiff. The Defendants have filed a Motion to Dismiss and the parties await the Court’s ruling on the motion. The Company has not made a provision in the accounts for any related liability, as it does not believe any liability exists.

12. Related party transactions

As at 31 December 2024, there is a balance of £89,075 due from a director (2023 - £89,075) are interest free with no fixed repayment terms. This balance was settled on completion of the transaction referred to in note 13 below.

As at 31 December 2024, there is a balance £2,261 due from a director (2023 - £287,767 due to a director). The amounts due are interest free with no fixed repayment terms. This balance was settled on completion of the transaction referred to in note 13 below.

Subsequent to the year end, Investor Loan Note and related accrued interest balances of £7.1m were repaid in full and £1.3m of Investor Loan Notes of £1.3m were converted to equity as C Ordinary Shares as part of the transaction referred to in note 13.

13. Events after the Balance Sheet date

On 30th June 2025, Investor Loan Notes of £1.3m were converted to equity as C Ordinary Shares and on the same day, the entire share capital of the Company was purchased by Halliburton Global Holdings Limited “Halliburton”.

As part of this transaction, the remaining Investor Loan Notes and related accrued interest balances of £7.1m were repaid in full and the Company’s entire share capital was re-designated as and converted into Ordinary shares. This included the conversion of the long-term dividend accrual of £3.8m to equity.

On the same day, the entire share capital of the Company was re-designed and converted into a single class of Ordinary shares.

14. Share premium account

The share premium account represents premiums received on issue of share capital.

15. Ultimate controlling party

No one individual controls the Company.