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2023-12-31-accounts

REGISTERED COMPANY NUMBER: 03956233 (England and Wales} REGISTERED CHARITY NUMBER.. 1083019 International Association of Hydrogeologists Report of the Trustees and Unaudlted Flnanclal Statements for the Year Ended 31 December 2023

International Association of Hydrogeologists Contents of the Financial Statements ft>r the Year Ended 31 December 2023 Page Report of the Trustees Independent Examlner's Report Statement of Flnanclal Actlvltles Balance Sheet Notes to the Financial Statements 10 to 18

International Association of Hydrogeologists (Registered number: 03956233} Report of the Trustees for the Year Ended 31 December 2023 The trustees who are also directors of the charity for the purposes of the Companies Act 2006, present their report with the financial statements of the charity for the year ended 31 December 2023. The Iruslees have adopted the provisions of Accounting and Reporting by Charities.. Statement of Recommended Practice applicable lo charities preparing their accounts In accordance with the Financial Reporting Standard applicable In the UK and Republic of Ireland IFRS 1021 (effective 1 January 20191. OBJECTIVES AND ACTIVITIES Objectives and aims All the Association's assets and funds a￿ directed towards meeting the objectives that a￿ con18ined in the Articles of Association of the Company. Thèse are to advance public education and promote research land disseminate the useful results of such researchl in the study and knowledge of Hydrogeological science. The Association seeks to achieve these objectives by.. Publishing journals, books, newslellers and other occasional publications, in both hard copy and electronic format, for the benefit of members and the wider community interested in the objects of the Association", Publishing of videos, webinars and other online educational materials., Promoting international co-operation among hydrogeologists and others with an interest in groundwater through commissions, ne￿OrkS, working groups and joint projects., Encouraging the worldwide application of hydrogeological skills through education and technology transfer programmes. The Burdon Fund was established by IAH to support hydrogeologists in developing nations. IAH also runs a sponsored membership scheme to help hydrogeologisls in developing nations share in the benefits of IAH membership. The Association has enhanced its capacity lo do this by establishing an Education and Development Fund and a Sponsorship Fund., Sponsoring international meetings, including an annual congress, and regional and national meetings., Co-operating with national and international scientific organisalions, to promote understanding of groundwater in the international management of water resourTrs and the environment. While these aims and objectives are clear, consistent and long-lerm, it is nevertheless prudent for the Association to review from lime to lime the activities that are undertaken and expenditures made in pursuit of these aims. To this end, a new strategic plan for the period lo 2030 was published during the year. This framework includes recommendations for activities to strengthen the Association's membership, educational and scientific programmes. communications. conferences, provision of web-based services, income diversification and many others. Progress in implementing this strategic plan will be reviewed regulady by the Executive Committee of IAH and reported lo the Trustees and Council. In carrying out these objectives and aims, the Trustees have complied with their duty lo have due regard lo the guidance published by the Charity Commission on Public Benefit. Page 1

International Association of Hydrogeologists (Registered number: 03956233} Report of the Trustees for the Year Ended 31 December 2023 ACHIEVEMENT AND PERFORMANCE Charitable activities The Association meets its charitable objectives in several ways. The Association maintains a sponsored membership scheme for professional colleagues who for financial or practical reasons find it difficult to pay their own fees. This helps them to receive scientific knowledge and maintain technical contact with ￿tent developments in groundwater science. To provide support for this, in 2009 the Association established 8 Sponsored Membership Fund of £10,000. The scheme is reviewed regulatly to identify members who have been sponsood for long periods and whose personal eareer and national economic situations mean that they might be able to pay for themselves, thus freeing up funds for new sponsored members. Al the end of 2023 total membership of this scheme stood at 279 members, with £5,832 provided from centml funds to cover the sponsorship of 164 members This left a deficit of £5,832 at the end of the year and the fund was replenished by transferring £5,832 from general funds. The remaining sponsored members were supported by National Chapters and individual IAH members. To further enhance its charitsble activities in the field of education, in 2009 the Association established a separate Education and Development Fund with an inits'al amount of £10,000. The Fund is intended lo be used lo support IAH members for educational and scientific purposes in the field of hydrogeology. The major vehicle for education and dissemination of research is Hydrogeology Journal. With eight issues per year, this continues lo meet ils targets for scientific articles and reports disseminated, and also in terms of the encouragement of a broad spread internationally of the authors, countries of origin. Further, the wide geographical spread of the editorial board enables us lo meet our objective of supporting publication in English of any scientific paper or report of merit regardless of the authors. own source language and facilities for Iranslalion. Hydrogeology Journal maintained a relatively high scientific citation index for Ils category while meeting the Association's objective of providing an accessible outlet for good hydrogeological science. Royalties for the Journal received in 2023 from our publishers, relating to turnover during 2022, amounted lo £25,758. IAH paid to publish in the Journal, papers produced by its Networks and Commissions, so that they would be freety available to all. This initiative followed the United Nations, 2022 World Water Day campaign, 'Groundwater.' making the invisible visible., and IAH'S own 'Year for Groundwaterf and summarised key issues key issues highlighted during the campaign. The lotsl cost for this was £4,193. Work was also completed under the Education and Development Fund on a new paper in our Strategic Overview Series on Sanitation and Groundwater, at a cost of £2,680. In addition, £2,341 was used lo support attendance at the Cape Town Congress of delegates from our Early Career Hydrogeologisls,. Our two book-series have now been closed but we continue to receive a small amount of annual royalties from book sales. In 2022 we received £923, from turnover in 2022. In addition we received a substantial back- payment, £16,093, for unpaid book royalties dating back several years. IAH uses its Burdon Fund and Network as its main focus for supporting the work of groundwater professionals and oising awareness about groundwater in the developing wodd, traditionally with a focus on Africa. Funding lotalling £8,730 was provided to support the participation of IAH members from low-income backgrounds in our annual congress, which took place in Cape Town, South Africa. The sponsored delegates were down from across the African conlinenl and also from India. The Fund was replenished to this same amount by transfer from general funds. With donations of £180 during the year. the balance of funds on 31 December 2023 was £32,482. Tradlng actlvltles These are carried out through the Association's subsidiary company World-wide Groundwater Ltd. IVVVVGW. Following completion of the Global Environment Facility project on groundwater g0veman￿, no further income has been received since 2014. The company is, however, maintained al a small charge in the event of further requirements arising for its use. VVWGWS bank account has continued to be used as a repository for a part of IAH'S funds following the unexpected closure by the bank in 2022 of IAH'S account. The amount held by vinNGW on behalf of the charity at 31 December 2023 was £84,94512022.' £91,448). Page 2

International Association of Hydrogeologists (Registered number: 03956233} Report of the Trustees for the Year Ended 31 December 2023 FINANCIAL REVIEW Results for the year Total Income for the year was £319,16412022.. £322,966). Total expenditure was £324,57512022.. £296.1211, resulting in a defi¢il across the year of £5,411 12022. surplus of £26,845). Currency exchange changes led lo a paper loss of £5,23112022.. loss of £2,294). However, reserves at the year-end remained sound al £261,660 12022.. £272,302). The fall in income compared with 2022 is mainly attributed to reduction in the 8mounl received in membership subscriptions. A major cost during the year was support for the attendance of the IAH Council 8t the Council meeting and Congress in Cape Town. SupFX)rt for delegates from low-income backgrounds was also significant. Expenditure for the annual congress conlrasls with 2022, when the congress was organised for Wuhan, China, but no in-person presence was permitted. There was also significant expenditure on support for education, which amounted to £9,214. The expenditure on salaries also increased, partly reflecting cost of living rises bul also addits'onal work related lo Hydrogeology Journal. These costs were largely counter-balanced by total publishing royalties received of £42,774 in respect of our journal and books, including a large back-payment for previously unpaid royalties for our book sales. Significant funds {£84,9451 continued to be held in the separate bank account of IAH'S subsidiary, Wodd-wide Groundwater, following unexplained closure of IAH'S own account by the bank in 2022 12022.. £91,448}. Consideration is being given to transferring this remaining amount to IAH'S new bank account, though il is acknowledged that dislribuling IAH'S funds across several bank accounts affords additional security under the Financial servI￿s Compensation Scheme. Reserves policy As at 31 December 2023 the amount of reserves were £261,660 (compared lo £272,302 al 31 De￿rnber 20221 of which £236,283 were free reserves Icompared lo £239,437 al 31 December 20221. Free reserves are reserves which do not include the restricted funds of £23,752 and reserves tied up in fixed assets of £1,625. In addition to the management of the Burdon Fund, the Association has adopted a reserves policy for the management of its general funds with the following objectives.. To provide funds lo continue the orderty development and future growth of the Association as defined by its mission and objectives and as set out in the Forward Look strategic programme., To provide funds lo enable the Association to continue to meet Ils scientific aims and objectives through its publications, conferences and the work of its commissions., To provide funds lo enable the Association to continue ils work related to the promotion of sound groundwater management throughout the wodd", To provide funds lo support the Association's work in developing countries. Each year the Association's Executive approves a plan of acb'vity and budget lo address these objectives. This involves the release of funds from general funds to enable the plan lo be delivered. Further details on designated and restricted funds are provided in the notes to the financial statements. STRUCTURE, GOVERNANCE AND MANAGEMENT Governing document The charity is controlled by ils goveming document, ils Memorandum, Articles of Association and Rules, and constitutes a limited company, limited by guarantee, as defined by the Companies Act 1985. Changes to the Rules of the Association were approved by Council at ils meeting in Rome in September 2015 and at an online meeting in October 2022. Page 3

International Association of Hydrogeologists (Registered number: 03956233} Report of the Trustees for the Year Ended 31 December 2023 STRUCTURE, GOVERNANCE AND MANAGEMENT Recruitment and appointment of new trustees The Council of the Association is elected by ballot of the membership of the Association every four years, the period of office running from the annual meeting al which the election takes place until the annual meeting in the fourth following year. The current Council was elected on 23 September 2020 and will serve until a new Council will be elected during 2024. Organisational structure All mèmbers, individual or corporate, are members of the international body. However, the Association encourages the formation of nation81 or regional committees in order lo carry out local adminislralion, promote contacts and co-opèration and undertake relevant studies of Ioe81 or regional interest. National committees may be organised in a number of different ways according to national practice and circumstsnce. The Council of the Association determines the general policy of IAH. Remuneratlon of Key Management Personnel In determining appmpriate levels of remuneration for staff, the Association aims to provide overall packages of terms and conditions that are affordable, competitive and will help to atlracl, relain and molivale high quality individuals capable of achieving the Society's objectives. The Association wishes lo ensure that staff are fairly rewarded for their individual and collective responsibilities and contributions lo the Association's overall performance. Remuneration packages are the responsibility of the IAH Executive, which lakes into account data on general inflation and wage inflation, as well as perf0mlan￿ considerations when making ils determinations. Key management remuneration for 2023 was £28,44212022 - £26,083). Risk management The trustees have a duly to identify and review the risks to which the charity is exposed and to ensure appropriate controls are in place lo provide reasonable assurance against fraud and error. REFERENCE AND ADMINISTRATIVE DETAILS Registered Company number 03956233 (England and Wales) Registered Charity number 1083019 Registered office 35 Cardinal Close Caversham Reading RG4 8BZ Trustees Name David Kreamer Marco Petilla Teodora Szocs Jane Dottridge Philip Chilton Nicholas Robins Term during yearto 31 December 2023 Continuous Continuous Continuous Continuous Continuous Continuous Company Secretary l R Davey Page 4

International Association of Hydrogeologists (Registered number: 03956233} Report of the Trustees for the Year Ended 31 December 2023 REFERENCE AND ADMINISTRATIVE DETAILS Independent Examiner Locke Williams Associates LLP Chartered Accounlanls lo Blackthorn House St Pauls Square Birmingham West Midlands B3 1RL Solicitors Robbins Olivery Southern House Woking GU22 7UY This report has been prepared in accordance with the special pmvisions of Part 1 S ofthe Companies Act 2006 relating to small companies. Approved by order of the board of trustees on 1610912024 and signed on its behalf by.. l R Davey - Secretary Page 5

Independent Examiner's Report to the Trustees of International Association of Hydrogeologists (Registered number: 03956233) Independent examinerfs report to the trustees of International Association of Hydrogeologists I'the Company'l I report lo the charity trustees on my examination of the accounts of the Company for the year ended 31 December 2023. Responsibilities and basis of report As the charity's Iruslees of the Company land also ils directors for the purposes of company lawl you are responsible for the preparation of the accounts in accordance with the requirements of the Companies Act 20061'the 2006 Acl'l. Having satisfied myself that the accounts of the Company are not required to be audited under Part 16 of the 2006 Act and are eligible for independent examination, I report in respect of my examination of your charity's accounts as carried out under Section 145 of the Charities Act 2011 I'the 2011 Acl'l. In carrying out my examination I have followed the Directions given by the Charity Commission under Section 145151 Ibl of the 2011 Act. Independent examlner's statement Since your charity's gross income exceeded £250,000 your examiner must be a Member of a listed body. I can confirm that l am qualified lo undertake the examination because l am a member of the Institute of Chartered Accounlanls in England and Wales, which is one of the listed bodies. I have completed my examination. I confirm that no matters have come lo my attention in connection with the examination giving me cause lo believe.. accounting records were not kept in respect of the Company as required by Section 386 of the 2006 Act., or the accounts do not accord with those records,. or the accounts do not comply with the accounting requirements of Section 396 of the 2006 Act other than any requirement that the accounts give a true and fair view which is not a matter considered as part of an independent examination., or the accounts have not been prepared in accordance with the methods and principles of the Statement of Recommended Practice for accounting and reporting by charities lapplicable to charities preparing their accounts in accordance with the Financial Reporting Standard applicable in the UK and Republic of Ireland IFRS 10211. I have no concerns and have come across no other matters in connection with the examination to which attention should be drawn in this report in order to enable a proper understanding of the accounts to be reached. David Williams FCA FCCA Locke Williams Associates LLP Chartered Accounlanls clo Blackthorn House St Pauls Square Birmingham West Midlands B3 1RL Dale.. 2310912024 Page 6

International Association of Hydrogeologists ststement of Financial Activities Ilncorporating an Income and Expenditure Account) for the Year Ended 31 December 2023 31.12.23 Total funds 31.12.22 Total funds Unrestricted funds Reslricled fund Notes INCOME AND ENDOWMENTS FROM Donations and legacies 5,360 180 5,540 6,731 Charitable activities Members services 313,624 313,624 316,228 Investment income Totsl 318.984 180 319,164 322,966 EXPENDITURE ON Charitable activities Members services 315.845 .730 324,575 296,121 Net gainslllossesl on investments 5.2311 NET INCOMEIIEXPENDITUREI Transfers between funds 12,0921 8,5501 18,5501 8.550 110.6421 24,551 12 Net movement in funds 110,6421 110,6421 24,551 RECONCILIATION OF FUNDS Total fund5 brought forward 240,000 32,302 272,302 247,751 TOTAL FUNDS CARRIED FORWARD 261660 272 302 The notes form part of these financial statements Page 7

International Association of Hydrogeologists (Registered number: 03956233} Balance Sheet 31 December 2023 31.12.23 31.12.22 Notes FIXED ASSETS Tangible assets Investments 1,624 562 1.625 563 CURRENT ASSETS Debtors Cash al bank and in hand 102,985 191,100 117,254 178,894 294.085 296,148 CREDITORS Amounts falling due within one year 134.0501 124,4091 NET CURRENT ASSETS 260.035 271,739 TOTAL ASSETS LESS CURRENT LIABILITIES 261,660 272,302 NET ASSETS 261660 272,302 FUNDS Unrestricted funds Restricted funds 12 229,358 32,302 240,000 32,302 TOTAL FUNDS 261660 272 302 The charitable company is entitled to exemption from audit under Section 477 of the Companies Act 2006 for the year ended 31 December 2023. The members have not required the company to obtain an audit of its financial statements for the year ended 31 December 2023 in accordance with Section 476 of the Companies Act 2006. The trustees acknowledge their responsibilities for lal ensuring that the charitable company keeps accounting records that comply with Sections 386 and 387 of the Companies Act 2006 and preparing financial statements which give a true and fair view of the slate of affairs of the charitable company as at the end of each financial year and of ils surplus or deficit for each financial year in accordan￿ with the requirements of Sections 394 and 395 and which otherwise comply with the requirements of the Companies Act 2006 relating lo financial statements, so far as applicable lo the charitable company. Ibl The notes form part of these financial statements Page 8

International Association of Hydrogeologists (Registered number: 03956233} Balance Sheet- Continued 31 December 2023 These financial slalemenls have been prepared in accordance with the provisions applicable lo charitable ompanies subject to the small companies regime. The financial statements were approved by the Board of Trustees and authorised for issue on 2110912024 and were signed on its behalf by.. D Kreamer- Trustee The notes form part of these financial statements Page 9

International Association of Hydrogeologists Notes to the Financial Statements for the Year Ended 31 December 2023 ACCOUNTING POLICIES Basis of preparing the financial Statements The financial st8temenls of the charitable company, which is a public benefit entity under FRS 102, have been prepared In accordance with the Charities SORP IFRS 1021 'Accounling and Reporting by Charities.. Statement of Recommended Practice applicable lo charities preparing their accounts in accordance with the Financial Reporting Standard applicable in the UK and Republic of Ireland IFRS 1021 leffective 1 January 20191,, Financial Reporting Standard 102 'The Financial Reporting Standard applicable in the UK and Republic of Ireland, and the Companies Act 2006. The financial statements have been prepared under the historical cost convention, with the exception of investments which are included al market value. Income All income is recognised in the Statement of Financial Activities once the charity has entiuement lo the funds, il is probable that the income will be received and the amount can be measured reliably. Membership fees are recognised when receivable and the amount can be measured reliably by the charity. Royalties and income from the exploitation of intellectual propety rights are recognised when receivable in accordan￿ with the substance of the relevant agreement. For donations lo be recognised the charity will have been notified of the amounts and the settlement date in writing. Donated memberships and donated travel costs are recognised in income al their fair value when their economic benefit is probable, it can be measured reliabty and the charity has control over the item. Fair value is determined on the basis of the value of the gift lo the charity. For example the amount the charity would be willing lo pay in the open market for such facilities and services. A corresponding amount is recognised in expenditure. Interest on funds held on deposit is included when re￿Ivable and the amount can be measured reliably by the charity,. this is normally upon nolificalion of the interest paid or payable by the Bank. No amount is included in the financial statements for volunteer lime in line with the Charities SORP. Expenditure Liabilities are recognised as expenditure as soon as there is a legal orconstructive obligation committing the charity to that expendilLJre, it is probable that a transfer of economic benefits will be required in settlement and the amount of the obligation can be measured reliably. Expenditure is accounted for on an accruals basis and has been classified under headings that aggregate all cost related to the category. Where costs cannot be directly attributed to particular headings they have been allocated lo activities on a basis consistent with the use of resources. Irrecoverable VAT is charged as an expense against the activity for which expenditure arose. Grants offered subject lo conditions which have not been mel at the year end date are noted as a commitment but not accrued as expenditure. Governance costs Governance costs include those costs associated with meeting the constitutional and statutory requirements of the Association and include the independent examination and an allocation of staff costs allributable lo time spent in managing the charity. Tangible fixed assets Depreciation is provided at the following annual rates in order to write off each asset over its estimated useful life. Fixtures and fittings 25P/o on cost Page10

International Association of Hydrogeologists Notes to the Financial Ststements - continued for the Year Ended 31 December 2023 ACCOUNTING POLICIES- continued Debtors and creditor$ receivable I payable within one year Debtors and creditors with no staled interest rate and receivable or payable within one yearare recorded al transaction price. Any losses arising from impairment are recognised in expenditure Taxation The charity is registered with the Charity Commission and under the provisions of Section 478 Corporation Tax Act 2010, is exempl from liability lo laxab'on on its charitable activities. Fund accounting Unrestricted funds Can be used in accordance with the ch8ri18ble objectives al the discretion of the trustees. Reslricled funds can only be used for particular restricted purposes within the objects of the charity. Reslriclions arise when specified by the donor or when funds are raised for particular restricted purposes. Further explanation of the nature and purpose of each fund is included in the notes lo the financial statements. Foreign currencies Assets and liabilities in foreign currencies are translated into sleding at the rates of exchange ruling at the balance sheet date. Transactions in foreign currencies are translated into sterling al the rale of exchange ruling al the date of Iransaclion. Exchange dIfferen￿S are taken into account in arriving al the operating result. The table below shows the balances held in the various currencies at the year end and the exchange rates prevailing. Rale of exchange with sleding on 31.12.23 Currency Balances on 31.12.23 US Dollars Euro $9,720 135,378 $1.273 1.153 Employee bgnefits When employees have rendered service to the charity, short-lerm employee benefits lo which the employees are entitled are recognised al the undiscounled amount expected to be paid in exchange for that service. The charity operates a defined contribution plan for the benefit of its employees. Contributions are expensed as they become payable. INVESTMENT INCOME 31.12.23 31.12.22 Deposit account interest The charity owns World-IMde Groundwater Limited, which is incorporated in England and Wales, established by the Council lo undertake commercial activities which are in support of the Association's charitable objectives and donates its annual taxable profits to the charity under Gift Aid. The company has not traded during the year ended 31 December 2023 or the year ended 31 De￿mber 2022. Page11

International Association of Hydrogeologists Notes to the Financial Ststements - continued for the Year Ended 31 December 2023 NET INCOMEIIEXPENDITUREI Net incomellexpendilurel is slated after chargingllcreditingl.. 31.12.23 31.12.22 Depreciation - ()wned assets Accoun18ncy and Independent Ex8minalion fee 831 574 TRUSTEES. REMUNERATION AND BENEFITS There were no trustees, remuneration or other benefits for the year ended 31 De￿rnber 2023 nor for the year ended 31 December 2022. Trustees. expenses There were no trustees. expenses paid for the year ended 31 De￿mber 2023 nor for the year ended 31 December 2022. STAFF COSTS 31.12.23 31.12.22 Wages and salaries Social security costs Other pension costs 85,701 1,564 3,421 74,493 451 2,980 77,924 The average monthly number of employees during the year was as follows.. 31.12.23 31.12.22 Part time No employees received emoluments in excess of £60,000. In accordance with UK legislation related to pension 8Uto-enrolment for sm811 companies, all five of the Association's employees are placed in an appropriate pension scheme. The total amount of employee benefits (including employers pension contributions) received by key management personnel is £28,44212022 - £26,083). Page12

International Association of Hydrogeologists Notes to the Financial Ststements - continued for the Year Ended 31 December 2023 COMPARATIVES FOR THE STATEMENT OF FINANCIAL ACTIVITIES Unreslri¢led funds Restricted fund Total funds INCOME AND ENDOWMENTS FROM Donations and legacies 6,597 134 6,731 Charitable activities Members services 316,228 316,228 Investment income Totsl 322,832 134 322,966 EXPENDITURE ON Charitable activitios Members services 292,948 3,173 296,121 Net gainslllossesl on investments 2,294) 2,294) NET INCOMEIIEXPENDITUREI Transfers between funds 27,590 3,1731 13,0391 3,173 24.551 Net movement in funds 24,417 134 24,551 RECONCILIATION OF FUNDS Total funds brought forward 215,583 32,168 247,751 TOTAL FUNDS CARRIED FORWARD 240 000 32 302 272 302 TANGIBLE FIXED ASSETS Fixtures and fittings COST Al 1 January 2023 Additions 11,720 At 31 De￿Mber 2023 DEPRECIATION Al 1 January 2023 Charge for year 11,158 831 Al 31 De￿mber 2023 11.989 NET BOOK VALUE Al 31 De￿rnber 2023 Al 31 De￿mber 2022 562 Page13

International Association of Hydrogeologists Notes to the Financial Ststements - continued for the Year Ended 31 December 2023 FIXED ASSET INVESTMENTS Shares in group undertakings MARKET VALUE Al 1 January 2023 and 31 December 2023 NET BOOK VALUE Al 31 December 2023 At 31 December 2022 There were no investment assets outside the UK. The company's investments at the balance sheet date in the share capitsl of companies include the following.. World-wlde Groundwater Llmlted Registered office.. United Kingdom Nature of business.. Consultsncy Inon-tradingl Class of share.. Ordinary holding 100 DEBTORS: AMOUNTS FALLING DUE WITHIN ONE YEAR 31.12.23 31.12.22 Amounts owed by group undertakings other debtors Prepayments and accrued income 83,249 17,956 1,780 91,863 25,391 102 985 117,254 10. CREDITORS: AMOUNTS FALLING DUE WITHIN ONE YEAR 31.12.23 31.12.22 Trade creditors Other creditors Accruals and deferred income 3.788 1,502 420 22,487 30,262 24,409 Page 14

International Association of Hydrogeologists Notes to the Financial Ststements - continued for the Year Ended 31 December 2023 10. CREDITORS: AMOUNTS FALLING DUE WITHIN ONE YEAR- continued Deferred Income 31.12.23 31.12.22 Balan￿ as al 1 January Released in the year Deferrals in the year 19,817 119,8171 26,467 126,4671 19817 Balan￿ as al 31 December 27,762 19,817 Income under contractual arrangements is deferred where it is subject to the performance of certain terms or conditions. VIn)e￿ these have not been met at the balance sheet date, the income is not reeognised in the statement of financial activities. Deferred income above represents membership fees received in advance of next year. 11. ANALYSIS OF NET ASSETS BETWEEN FUNDS 31.12.23 Total funds 31.12.22 Total funds Unrestricted Restricted funds fund Fixed assets Investments Current assets Current liabilities 1,624 1.624 562 261,783 34 050} 32,302 294,085 34 0501 296,148 24,4091 229 358 261660 272 302 12. MOVEMENT IN FUNDS Nel movement in funds Transfers be￿een funds Al 31.12.23 At1.1.23 Unrestricted funds General fund Sponsored Membership Fund Education and Development Fund Asia Fund 211,927 12,599 15.832} 18.859} 123.533) 5.832 9.151 200.993 14,708 13,365 15,000 13,365 240.000 12,0921 18,5501 229.358 Restricted funds Burdon Fund 32,302 18.550) 8,550 32,302 TOTAL FUNDS 272 302 10 642) 261660 Page15

International Association of Hydrogeologists Notes to the Financial Ststements - continued for the Year Ended 31 December 2023 12. MOVEMENT IN FUNDS- continued Net movement in funds, included in the above are as follows.. Incoming resources Resources expended Gains and losses Movement in funds Unrestrieted funds General fund Sponsored Membership Fund Education and Development Fund 318,629 1300,799) 15,832) {5,231) 12,599 15,8321 355 318.984 {315,8451 15,2311 12,092} Restricted funds Burdon Fund 180 8,730) (8,5501 TOTAL FUNDS 319,164 324,575} 5.231) 10,6421 Comparatives for movement in funds Net movement in funds Transfers between funds At 31.12.22 At1.1.22 Unrestrieted funds General fund Sponsored Membership Fund Education and Development Fund Asia Fund 187,930 44,515 16,1501 110,7751 120,5181 6,150 11,195 211,927 14,288 13,365 14,708 13,365 215,583 27,590 13,1731 240,000 Restricted funds Burdon Fund 32,168 13,0391 3,173 32,302 TOTAL FUNDS 247,751 24,551 272,302 Comparative net movement in funds, included in the above are as follows.. Incoming resources Resources expended Gains and losses Movement in funds Unrestrlcted funds General fund Sponsored Membership Fund Education and Development Fund 322,411 1275,6021 16,1501 11,1961 (2,2941 44,515 16,1501 10,7751 421 322,832 1292,9481 12,2941 27,590 Restricted funds Burdon Fund 134 13,1731 (3,0391 TOTAL FUNDS 322,966 296,1211 2.2941 24,551 Page16

International Association of Hydrogeologists Notes to the Financial Ststements - continued for the Year Ended 31 December 2023 12. MOVEMENT IN FUNDS- continued Burdon Fund The Burdon Fund was established in 1990 on the initiative of the Irish National Chapter of IAH, in memory of David Burdon, an Irish hydrogeologisl of international repute. The objective of the fund is to help promote hydrogeological training and practice in developing nations, a cause lo which David Burdon had devoted his career. The fund makes payments according to a set of criteria aligned lo its objectives. Contributions lo the fund are made by individual IAH members and National Chapters of IAH or by transfer from the general accounts of IAH. The priorities for the use of the Fund in supporting the charitable objectives of the Association have been regularly reviewed by the Council, leading to decisions that the working priorities for the Fund should be.. primary focus on the UN Sustainable Development Goals and thus on Africa., partnership and professional advi￿ lo UN and aid agencies", development of in-counlry and in-region support for groundwater professionals supported by IAH membership", reliable and accessible data SoUr￿S to assist in development projects. Funding lotalling £8,730 was provided to support the participation of IAH members from low-income backgrounds in our annual congress, which look place in Cape Town, South Africa. The sponsored delegates were drawn from across the African continent and also from India. The Fund was replenished lo this same amount by transfer from general funds. With donations of £180 during the year, the balance of funds on 31 December 2023 was £32,30212022. £32,302). Education and Development Fund The Education and Development Fund aims to enhance the Association's charitable educational activities. It provides for a range of support, including.. young professionals lo attend IAH congresses or lo publish their scientific findings,. support for the scienlilic and educational work of the Association's commissions and national groups., and support for the production of educational materials on groundwater for non-specialisl audien￿8. IAH paid to publish in the Journal, papers prodU￿d by its Nelworks and Commissions, so that they would be freely available lo all. This initiative followed the United Nations, 2022 World Water Day ampaign, 'Groundwaler.' making the invisible visible,, and IAH'S own 'Year for Groundwalerf and summarised key issues key issues highlighted during the campaign. The total cost for this was £4193. Work was also completed under the Education and Development Fund on a new paper in our Strategic Overview Series on Sanitation and GroLJndwaler, at a cost of £2,680. In addition, £2.341 was used lo support attendance al the Cape Town Congress of delegates from our Early Career Hydrogeologisls,. Total expenditure from the Education and Development Fund amounted lo £9,214 and the Fund was replenished by transferring £9, 151 from general funds. With donab'ons of £355 during the year the balance of funds on 31 December 2023 was £15,00012022. £14,7081- Sponsorshlp Fund The Association has a sponsored membership scheme for developing-country professionals and others on lower incomes to enable them to receive scientific knowledge and maintain technical contact with recent developments in our science. To provide further support lo this, in 2009 the Association established a Sponsored Membership Fund, and uses ils membership ne￿ork, national chapters and general publicity to encourage new candidates for sponsorship. At the end of 2023 total membership of this scheme stood at 279 members, with £5,832 provided from central funds to cover the sponsorship of 164 members. The remaining sponsored members were supported by National Chapters and individual IAH members. The Fund was replenished by £5,832 from general funds such that on 31 December 2023 the balance was £Nil1£2021'. £Nill. Page17

International Association of Hydrogeologists Notes to the Financial Ststements - continued for the Year Ended 31 December 2023 12. MOVEMENT IN FUNDS- continued Asia Fund The Association's Burdon Fund is long estsblished and is focussed largely on Africa where the need for support for groundwater activities is greatest. At its strategic review in 2010 the Association wished lo extend its developing country focus lo Asi8, where the educational and development support neèds are somewhat different. Receipt in 2010 of an operating surplus from the 2009 conference in Hyderabad provided the opportunity to set up a separate Asia Fund and lo establish a programme of support lo members in the region. National chapters in the region were informed of the criteria for applying for support from the Asia Fund, but no requests for support were received. The ba18nce of the fund al 31 December 2023 remained at £13,36512023. £13,365). 13. RELATED PARTY DISCLOSURES During the year, the charity's subsidiary administered funds held at bank on behalf of the charity. At 31 December 2023, the subsidiary holds £84,94512022 £91,448) on behalf of the charity. Page18