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SG Charity Numb¢r284131 THE BRITISH GEOTECHNICAL ASSOCIATION Annud Rewrt and Financial Statements tor y¢arended 31 December 2024 Contents Page.. Annual Rtpctrt 10 Indepenthnt Examinces Rer Statement of financial ￿tIVitIeS 12 Balance Sheet 13- 17 Notes to the financial ststements

THE BRITISH GEOTECHNIGALASSOGIATION G& Trustses. Annual Reportforth• yèar •nd•d 31 D•¢•mb•r 2024 LEGAL AND ADMINISTRATIVE JNFQRMATION Th¢ British GEokthnical Socirly was foTTned in 1949 a5 an uDiN(I>Twadawciation. Ji b¢¢4m¢ a re8is¢ered djarity by 5tthiw adopted D¢ctmir 1981 8$ am¢nd¢d in Jthuary 1997. It Eecamc tbe Biiti8b Geotedthlc￿ Associ￿10￿ by #amcs thp¢d in Jun¢ 2(K)O wjd amended in Jllne 2005. June 20118nd June 2017. Th¢ ¢hRrity Dumber is 284131 Tkecharlty trusi¢eswho $¢r¥￿ dyrllg th¢y¢4rw¢Y¢: D[ARidiey,Ct￿ir Ms C Doulala.Risby, Vice Chaii Dr P F¢rr¢iT8 Ms 7. Mavronm)aii Dr H Y¢o%v DrKBriw I)r K TSiarnp￿s7 Profti Viggi¥ni Mt D DE5kalwulos (to J2 June 20241 Dr G Katsi8iaDlliS (to 12 Julle 2U241 EUT I￿&Dr S Tkntnas (to 12 June 20241 Mr A phe￿ Ifnxn 12 June 2024) DrN Writh {from 12 June 20241 Ms E Roey (frorn 12 Jwje 20241 The method of appnintmowt or ¢l¢etion of trusttes th¢ nam¢ of ¥ny body OT person cnlitltd to ntrmilltt or #ppoAtht otte or mor¢ Iwste$ ts as follow$: 'lThc'lnfft¢csof tht Bfttish Ge￿¢£bniCal A850ciatioo are tbc mcmbcTS of its wmmill¢¢. Thc committe¢ ¢ompris¢s'. Cham8 Vice£h&irn18n 9 Ek¢tcd M¢mbe Th¢ Chaim)an Vi¢¢ Chainnm ofthe A￿Ki￿10￿ sh￿1 b¢¢l¢o¢d by m¢mb¢rs of the cojnrnitke. Only Th¢mba5 of the Asxociation shdl k mernber¥of the CommilTCe. This reqU￿em￿l may be waiv¢d ifth¢ Committ¢¢ agTC¢S. Th¢ m¢mb¢ys to b¢ cl¢rtcd by b￿[Ot 5h911 k n(miMicd by not l¢ss three rnembers ofthe ASS(￿￿0t10D. Honorary office￿ St￿￿￿•t ￿ etttitiedto vot¢ &tCommittee Meetitigs. f*tsi]sof M¢mbership ¢lasses gJ¢ under AssocI￿10n org9mis￿iO P88¢ 2

THE BRITISH GEOTECHNICAL ASSOCIATION eG Trustees. Annual Report for th• yaar ended 31 December 2024 LEGAL AND ADMINISTRATIVE INFORMATIO]Y The principal office of the charity is: One Great George Street Westminster Lolld￿ SWIP 3AA Nam￿ ond addr¢ss¢s of (rther relevant orgallisations.. Bankers CAF BANK Limited POBOX 289 West Malling Kent ME19 4TA Solicitsrs Solicitor5 are appointed from lime to time as the need arises. IndepeDdeDI e￿mIner Jonathan H¢a]ey FCA Lindeyer FratLCiS Ferguson Ltd Chartered A¢¢ountants North Hous¢ 198 High Street Tonbridge, Kent TN9 IBE Investment Advisers Coults & Co 440 Strond tDndon WC2R IQS Page 3

THE BRITISH GEOTECHNICAL ASSOCIA TION Tru$tee$' Annual Rewrt for the year ended 31 December 2024 ORJFf.TIV&S, POI,ICIES Ah'D ORGAfiISATIOY lives¢mtnt Polity Managemenl of investhientg l8 delegdted by ComTnittee 10 Coutts & Co. The fund is tnanaged 8n emph&sis on long Lapitsj growth I¢iEht y¢aT5 or lon￿rI arld a tnithrat¢ to high apprO￿h to ri Re5¢rves Policy The tr￿teeS consider it prudent to keep unre51ricied r¢seTres at levels which ¢nsur¢ trre are suffjcient fi￿d5 to m¢¢t tlr ￿¢d% ol'currnit and fvIuT¢ a¢iiiilieS. Thc a¢tivilic5 of lh¢ A5￿ciatIon are largely regul￿ and prediclable in the medium to ]ong rcrm. Rcserves can thcreforc be rclicd on to art as conlingettey in the tveni of incomc flow8 Fing disrw)ied. lieserves have de¢re￿d this year due to & piÈnned incrtsse in expertditure for BGA event8 attd initiatives to draw unrestritd fr¥¥ r¢￿Ty¢S IsK¢ b¢lowl. OUT unT¢Slri¢lEd fr¢e reseThes amouthtsd £536:920 {2023- £549,896). To c(¥tiinue ￿ Mluee the rtservw in 2023 tkn A$sociatKFn implemented further iniiifttives Ih&t support its objectives. Such initiatives include ftv m¢M￿rshiP foT Studcnts. introdu¢irtE a Kesearch & Development Fund to suppon deVelo￿ents in the irtdustry, tteatlll8 a Publi¢ity C4mpai8n to intr¢se eng&Eement in the geotsthnicdl en8inttrin8 5e£ior. These inilialiv¢s w¢r¢ cvntinued ID 2024 in additi(kn th¢ &s¥oLialion also ran a mini. sy7n￿51￿￿ for thc mcm￿Ts and a S￿laJ confercncc was held for the rnember5 10 Lxlebratc thc 75th annivcT5ary of thrBG Charity objtelivt8 Th¢ obj¢ths of th¢ Aswciaiion are the a(Ivancemeni of public edwation in subjects of soil and rock mechanics and enBin¢¢ring gets1o￿ and in thrir application iv ¢￿¥ll￿nn£. Summfiry of polititt ￿tspted to furth¢r tht objects of th¢ Aw¢i¢iuD al-lo Tegular meetings for discusSLI)n of subjcct$ lying within the thve fields. bl To arrdngc for rhc holding of ￿riodical and re8ional tonferencffj symJxTrsia )d seminats. ¢1 To ¢(korrnte in the activities of Intern￿10￿￿1 Societies of whid) the British G&)technicAI A￿Cl￿10n is a m¢ffltrr ar￿ with such b)dies ￿ may be 8ppwptid¢. dl GeT￿ra7]Y promole training COUT5CS and scminws in thc ficld ofgcoicchnology. e)'lo (k) lawful thingsa5 shall 1th1hcrihe abov¢ obj¢¢ts. Tkn aTe ￿ ctw]ges inthe Association's objects from the previous year. A¥sotiatioth ()rginisation- Commit¢et The 8ff8irs of Ass(KI￿10n gJe M￿l&sed by the Commtttee. Membtrsblp Individual m¢m￿rshIp sh￿1 be open to th0￿ profe%%ianall}' engaged or otherwise actively interested in work lying within die scope of ￿ Asgocimtion pa)Th¢nl of the sppropThai¢ entr8nL fee and annu￿ subscripiiort. CorKM)rak me[￿￿T$hIP shall QF¢D ts) 811 organisations. or pgrts oforg8nisgtion.% ￿gaged or otkrwis¢ *ively inkr&tted in any •gpectof g¢otechnical enginccrin8. ubs¢riptions may on]y be mudifieij with th¢ approval of tk Anrtua] c￿nEral Meeting or a Special G¢￿Tal Meeting. p￿e4

THE BRITISH GEOTECHNICAL ASSOCIATION SG Trustees. Annual Roport for the year ended 31 December 2024 OWECTIVES, POLICIF.S AN'D ORGANISATION Sponsorship The following three bodies shall b¢ as￿lated in the sponsotship of the Association. al The lostitulioJL of Civil Engineers b} The ItL%titutt of Materials, Minerals and Mintng cl The G￿logIcal Society of London Page 5

THE BRITISH GEOTECHNICAL ASSOCIATION G& Tw$tsos' Annual Report for the y8ar ènded 310ecember 2024 REVIEW OF DF.VELOPMENTS AND ACHIEVEMENTS DURtNG THE I'EAR I COMMITTEE STRUCTURE AND ACTIVITIES Throughout 2024 Professor Andrew Ridley was Chair of the As%)ciaticTrn, Mrs Yuli Doulala-Rigby was VÉce- Chair ot the Asso¢ia¢ion. Mr Tony Bowemian was Honorary Treasurer, Mr Nicholas Arnistrong was Flonordry S¢¢r¢lary and DT MaTtin PTe¢ne was Honordry C1)mmuni￿tionS oificer. Pn)f¢ssor David Toll, who was Chair of the Association from Junc 2021 to June 2023, stepped down &% Imme41iate Past Chair it] June 2024. Th¢se Toles are kcy to thc continuity and smooth n]nning of the BGA. They ensure that the Associatiort ￿lf1]S its Obli￿10￿$ and that th¢ 5tstU¢5 are compli¢d with. The tem)s of office for Dimitri05 Daskalopoulo& Georgios Katsigianni% and Dr Stephen Thomas came to an cnd in Junc 2024. They were very active member5 of the cornmittee and we thank them for their se]vice. Alan Phear, Emily Riley and Di Natalie Wride were elected to th¢ Committee by the mernber5hip and 5tartcd their temjs of offiee itk JLm¢ 2024. We welcome them and thank them for voluni¢ering. The Exe¢utiv¢ Committ¢e is divided into a number of sub-¢ommittees and the following people have had particular res]h)nsibilities during 2024.. Truong Le is a gue8t member of the committee with responsibility for organising the Rankine lecture and associated events. • Professor Giulia Viggiani led the plizes and awards s￿￿cOn￿￿ltt¢c. . Ho¢ Chian Yeow w-ordinat¢d organising the ¢venin8 meetings. Dr Kat¢rina Tsiampousi led the group organising events for Young Pr(>fesstonals which included the Cooling Prize. Mr Sergio Solerd continued as ll guest member of the Committee to support the Cooling Prize activities. Palak Shukla and Cheng Wei Kwan8 represented the Early Career Group (ECG). • Christina Mavrommati c[￿rdinated events for Geotechnologists. Dr. Kevin Briggs ¢ontitiu¢d in th¢ role of liaising with Regional Groups ind led the Technical Committee for the Farthworks 2025 conferen¢e. . Emily Riley took over from Tony Bowerman as the BGA'5 representative on the Ground Forum. . Yuli Doula]a.Rigby continued a5 thc BGA'S rewrsentative on lh¢ Gn)und Engin¢¢ring editorial PAnel. In hi5 role as BGA Treasurer Tony Bowerman wa5 also responsible for adminisi¢ring the BGA Knowledge Supw>rt Fund. In her rol¢ as Vioe Chair, Yuli tk)utslo-Rigby organised the 2024 Annual Conference and wa8 WiSt¢d by Dimitrios Daskalop)ulos, Professor Giulia Viggiani and Kate Beardsley. Professor Kelvin H1￿InS continued in th¢ role of ICE r¢pr¢s¢ntative. • Neil Smith ¢ontinu¢d as ISSMGE liaison and James Lawrence &8 ISRM liaison. . John Davis rep]esented The Engineering Group of the Geological Soci¢ty IEGGSI. Paul Pewry represented the British Tunnelling Society (B TS). • Emilio Linde-Aria5 represented the Instits]te of Materials. Minerdls and Mining (IOM31. • Mr Dave Woods represented the International Gc05ynthetiC5 Society (IGSI. • Mr Adam Latimer ]Eprtt8etJlcd the Association of Geotechnical and (ieo-envirnonmental Specialists (AGS). . Ms Nia Kajastie represenied Ground En¥in¢ering Maguin¢ {GEI. Page 6

THE BRITISH GEOTECHNICAL ASSOCIATION TruBtseB' Annual R•port for th• yèar •ndgd 31 Decemb•r 2024 REVIF.W OF DEVELOPMENfs ANTr ACIIIEVEMENtS DIIRING I'HE YEAR 2 MFWI'INC. BGA events held during 2024 in¢luded 62nd RankiJ)e LectUTe, the John Mitchell ikctUTC. the Fleming Awrd. Ihc Cooling Prize: th¢ G¢ofrchni￿l Engineering Proceedings IxcluTt, the Annual Confcrence. a ha]f-da} mini-symposium. a special ei'ent to Tll8rk the BGA'S 75th Anniversary iD¢luding th¢ Annual DinncTILe¢rnre and four other ¢v¢ning lectUTes. Most ev¢nts in 2023 were organi5ed as hybrid t￿ntS allowing on-line attendance. The exceptions to this were the Annual Conference and the Annual I.eclureffj)¢nner, In Janw, 2024 th¢ John Milchcll l¢iurt w&% delii'cred by Dt BarnRli Cihosh on'Cr¢ating added value through adwive design. A seismic per5PC¢live.' 120 proplc attcndcd the leciure and 143 WAt¢hcd it0￿11￿e. A half-day rnini-5ymV)sium on the Observarional Method Vds held at the In%tiluliDn of Civil Engin￿r$ I￿ Febn]Jry 2024. I¢N) kEople ottended. Th¢ 62nd Rankine ILtture was delivered by ProfeS￿r Lidija Zdrllvkovic of Imperilll Ctrlltge London on'feote¢hni¢al Engineering for a s￿9￿1￿&ble So¢i¢ty- It h¢ld as an u]-￿rÉ0n ev¢DI Wlth appN>ximat¢ly 800 8liendBes and was also watched wrldwide as # live w¢b¢ast. The LecJre and tr Rankine Dinner werc held at Itnperial C'.ollcge London on 13 March 2024. ID Apri12024 the BGA held g joinl meeting Mith the British Tunntlling Society and the EngIr￿rIng Gtoup of the Oeological Sociery of tA)nik)Th. Th¢ lecture 'GroU￿dwIt¢r l¢Jwrring for construction oCth¢ Kilsby Tunnel on tlk Londoo to Birnin8hMm railMy" w given by Mike Chri￿3 Bnd Dr M8rtin Preen¢ at th¢ ICE. The pap¢r ofthe same T￿lle was aW￿d the BGA c￿ Histories Piize in 2023. 91 people aN¢nthdthe event 261 Ftople watched in onlin¢. In May 2024 a hybrid BGA Evening Mc¢ting on"Chalk chara￿¢riS￿liort for and driven pile behaviuur at chalk sit￿. wa5 P￿sen￿d by PTof¢SSQT Richard JELT(line and Dr K¢D Vinck of lrnperi￿ college LoD()n. Th£ work was amwrded th¢ BGA Medal in 2023. 76 pwpie att¢Dded the event ond 160 people wat¢bed li online. The BGA AnDu&I Conference was h¢ld in June 2024. To mark 50 years of the BfjA bEiDK the UK meruixr 50ii¢ty for the InternAtiona] SL)ii¢t> for Rock Me¢harti¢s and Rook r..nginnering thc 2024 AnnuKLI Conf¢rtnc¢ wos therned around rock mechani(¥. 197 ￿tspIt attcndcd th¢ ¢vent in per%on. As usual the BGA held its AGM a5 part of the wnfereJe. The BGAAG8 IIJKI InvitaiLonal L£cnw¢ 'Undergindit)g th¢ bebaviouT of8eosJnthetit reinfoT¢¢d pile supported cmbankrnent% w&% hcld at th¢ ICE in Septrmixr 2024. The was presented by Suz¥J)n¢ van I'£keiett of tkltarcs in The Netherlands. 32 pwle att¢lld￿ the EVEnl and 89 Fople watched it onlujr. Ill Ocioter the BfjA held a SpEcial CvnftreDce io celebrats 75 y¢ars Eince il fonncd. The eveni included r￿01[.110￿s from p& BGA C.haits aNI Officers, artd Ihc 55th Coo>lin8 Prize Corn￿1110￿ by Thorna5 RI￿￿} (University ofDundeel with hi$ pa￿r on 'l)ilc insThllalion effects and plugging in 50ft rock.. The ei'ent w'as r￿lshed orr by second ADnua] BtiA Dinncr wilh thc &￿st lecbjre deliYcr¢d by Profesgor Lord RoLErt Mair of tbe tiniversily of Catllbridgc. l(A rvle attejhled the ¢vcnt in person. In Novejnber 2024 a hybrid BCIA Evenin8 Meeting on GT¢en. g￿en. grass on slop￿S- 8wiechnic&l a5txcl$ ol'slope $tsbility and eT()51oll protection using natUTe-bHs'ed ￿lUtIOns. p[ysert￿￿ by PTofessoT Slutx)dm Tl. Mickovsk of C￿ed01)lan UDIV¢T5ity 35 ￿0p]e attend¢d the evenl and 171 people w&ched it onlinc. Al￿ in Novemb¢r 2024. the Geoie¢hnical EnginEerin8 Pro¢¢¢dings Lt¢tur¢-Monitorin8 of & Large DiarD¢t¢r Caisson in Sand" wa$ presentrd hy Dr Konan Royslon, Dr J3Tian %heil 2nd ProfrswT Byron By]]Je. The B(yA Tourirtg Lecture for 2024 was 8iven by Prof¢5SOT Bruno SIvyL$ of Ullivet5ity of Ghen( f4elgium.'Ib¢ till¢ of his leuu]e "AppliLdliLTrns of machin¢ learnill¥ in geo1￿.￿nical site characi¢rization and d¢si8n." The le¢ture was hofftd by the Nortbeyn G¢otEchnical Grvup its Newcastle, the Midland Geotechnital So¢iw in BiTminghaoJ and lh¢ South-wesi Geoi¢¢hDical Group in Llristol. Three online Gwchnolvgi%¢8 ¢v¢nts We￿ held in 2024. "Sgn)plllJ& why ii ys IM￿rtAnt why does li nEd ts) dont propErly. and at Can go wron￿. wa5 8iv¢n by CThM%tDpher Swainston. "TnnovatiOL * th¢ Construetion Sik....by Enginee￿ in Whit¢ Coats, BTown Coat% Bnd Hi-viz PPE- wa8 given by Brian Shawk¢y. and"Proving your ￿mpetence as a 8kill¢d Q¢otccknok)gÉst" givt by Julian Lovell. Thc fleming Awanl hcld in Dccember 2024 and it was WQD by Fehily TimoD¢y and Company. Ramb)11 UK John Si%k & Sort Holdings Ltd, M¢nard UK and TrdnswrtarioTr In[As￿￿tI￿re Ireland for their projea w¢5Cllt&tion on the DuTrkcttlt Intcrch8ng¢ Upgrade Sch¢me in Cork. Ireland. Whik th¢ judging undernvay, Thotnas Riccin reprised his Cooling Prvze winrLin8 pres¢Iiiation on"Pil¢ instsllalion effects al￿ plugging u) 50ft rock." Throughout 2024 (he BGA ECG IE4rly Carter Group) was exlremely actii'c. ThciT flagship event "Pre￿ring for ICE ChErtered ProfessioTLal Revicwl. was held al thE ILI in Fcbrnary and 110 ￿0P]e ottended120 in per￿n 9t￿ W ojjlinel. ID addilion they held ¢iients to promotr ihc 2nd Edition of the TCE MaDu81 of Ge0￿hnIC8] En8itteering (M￿E) a￿1 tt 'WeL¢omelAnnu&l Networking Evcnl, 8t the ICE in Owi*T. Page 7

THE BRITISH GEOTECHNICAL ASSOCIATION G& Trust￿. Annual Report for the year ended 31 December 2024 REVIEW OF DEVELOPMLNTS AND ACHIEVEMENTS DURITrIG THE YEAR PRIZES AND AWARDS Duritig 2024 the following PTJze5 were awarded.. The BGA Medal wa5 awarded to Professor Glenn Mctbwell (University of Nottinghaml and Dr. John dc Bono IBFY Group} for their paper"Particle-s¢ale insights into the compression aDd shearing of clay. • The BGA Case Histories Award was won by Professor Brian Sheil {Universiry of Cambridge). PeteT Hensmon (Ward & Burke) and Dr. Zhandos Orazalin (Mott MacDonaldl for thcir work on Monitoring and Perfonnan¢¢ Assessment of a Deep Excavaiion Coff¢rdam'. In5ight5 froTll the PROTOS Energy.from-Waste Facility." * Th¢ Cnoling pri￿ wa5 won by Thom￿ Ri¢¢io (UT)iver5ity of Dund¢¢) with his paper on 'Pile InSt￿lation effects and plugging in soft rock." • Thr Flerning Award was won by Fehily Timon¢y and Cornpany. Ramboll UK, John Sisk & Son Holdings Ltd. MenaTd UK and Trdnsport*ion tnfrastwGtUJE Ireland for thehr project pr¢sentation on th¢ Dunk¢ttle Interchange Upgrade Scheme in Cork. Ireland. • The John Mitchell Award: Mrs Yvonne Ainsworth • The BGA M&sters' Dissertation Pri7£'. Thirimadura Supun Surendra Mendis (lrnperial College Londo￿) for a diss¢nation on "Advanced 3D N'utnrtic31 m￿elling of Deep B￿emellt and Tunnel Inter￿10￿ in London.. The BGA continued to honour its cornmitmentto supwrting the furthem]eni of th¢ knowledge and education of ts rntmbErs thjvugh the BGA Knowledge sup￿Trrt Fund Award Ipreviousl), BGA Fund). Six awards w¢r¢ made in 2024. In addition the BGA supported irtdustry and academic investigator-led applied g¢oi¢chni¢&l research throu2h its R¢search tkv¢lopment Fund. COMMENTS The BGA continued to monitor the att¢ndan¢es 81 lectures and oth¢r ¢v¢llts throughout 2024, and it seems to have uow recovered w pre-pandemic level5. At the c105e of 2024. the BGA had 1479 individual meThbErs and 49 ¢orpgrate members. These are up 185 atld 8 respettively on th¢ numbets at the end of 2011 and thc number of indiNryduai niembeTS has ¢oniinued ts) grow since 2022. The BGA recognises the im]x)rtanc¢ of aiiracting new, younger members. Al the end of 2024 the number ofsiudent m¢mbers was 174. During 2024, il was recognised that as an unitotporated association the BGA 15 not able to enter into contracts and Tru51¢es of lh¢ Association are personally liable for their action5. in¢luding financial tnatters_ To addres% this Trustee and Offi¢er's Insurance was put in plac¢ and investi¥ations w¢r¢ started into incoTP)rating the BGA. This pr￿¢s$ is still ongoing at the cnd of 2024. Dr Andrew Ridley (BGA Chailr) Page 8

THE 8R171SH GEOTECHNICAL ASSOCIATION G& Tru¥toes' Annual R•port for the year ended 31 D•¢•mber 2024 Iwp•rtnce of thttfforts of volunleers Ind proviilon of fret fa¢ilitleA and Jervites Tr SU￿￿$ of theAssctiion continues to IkFrtd en¢￿￿On the work ofvery rnthypwlGthise h&v¢ s¢Nedon it5 wmmittee5 an wDtin8 gmllps, those 744x> have spoktn and taken part in its rne¢ling& artd tiM>se whD have IK]ped in matsy other ways. lkn¢ Brili8h Gtr)IeChni¢￿ Assodats"on would lik¢ to tske this to regi5t¢r its apwiath)n orth¢ effo￿ of dl tknse who so wllingly helrd dwiJ)g th¢ y¢4r. Revl¢w of ¢h¢ JIDaDEll pD$ltion of tht thrlty M¢rnbetship sUbScr￿10r6 Krttlude suknptions to the publi¢atiM GrO￿a EngitiEerinB Tr Commiw¢e o)nsidefsthe reser￿ to b¢ uoteto meet its on.Boing xliviiL' Surplu8fllt)th arepledon shortterm d￿slL A defieiiof £47.631 iti¢omeoverexFnditure forthe y¢Hrlw dtcr￿edthe furt whichan0￿ts ￿ £263,045 at thE yeaTBnd. This wmFdr¢s to a(kficit in thB wrntrctcd fund Df£3.175 In 2023. ik#tEnattd FundJ- RnkiDe Fund Th¢ fijnd 8t the yeat-ettd8mo￿ts to £268.024 AfterAn inv¢$tment8ainof £33,450 wmpgr¢dtrJ again of £23,484 ID 2023 aThJ n e%¢e&s of ow>rne 0￿eX￿ndl1ule0r£32,s33, u)mpaT¢d to aD exLYSS of incorneov￿ vAFn(lits]rc of £l1.987 in 2023. InvESlm¢n¢ irjwme i$u5¢dto fund the Ranki￿ Leaure D#]￿￿ted Fllttdi-The BCA Koowltdge Supiiort FVNI Tr fi]nd balancc ot ￿ Year￿ amounts to £5,851 aft¢TawJrdihB bursarhrs lo ¢kVr￿1￿CJyknts, ￿￿￿]Ing£s,(￿o 8JLd re￿5ved￿r £168, comwcd to £100 rteeived ith 2023. £10.(X)O WLS transfr￿￿ from the income Tec4ivfjd fvrtEtRSnkl￿ DiDrw in UWEstrictsd The BQA KrnwldE¢ Supwrt Fund (PT¢viously ￿ferred10 8s the BGA FwLd) 18 1fite￿ w gid st￿nts and e8rty ¢ar¢trprofessioThaLsin gx>chDiCS and alli¢d Subi￿ts InDTuthlly und¢r 33 ye¥rs of ag¢) in thEiT tiainin& Lkv¢loF•n¢nt (indUdl￿ fimdsng of tea¢hin& r¢Mch #Thl Irwcl, e.g. confercncc attendancc. rx¢hans¢5 with young BrthJHt¢5 IA otr£r ¢(oJntries). It is also for rwng wbjerthding and fv BppE¢iatitin of 8eotochni¢s by thc ￿blIc. FrticulBrly pupils at Sch￿1$ ond colk8¢s {to fL￿1r iTht¢￿st itt g¢otcchnicB QS A ¢lft¢r) 8nd other technicaV8ci¢Thtifi¢ prDr￿l9￿B]S (to erKourag¢ tk eJllp]Dyment of exFrts in ￿teChni￿ on projects whwtrer apwopriate). Dtgret of FiM#nciil D¢p¢nd¢•ey As diswss¢d IhE Associdion is dyndent ontt vol•¢lTurtsof its m¢mt¢w Rkk knM65meDt A r￿k &55E85mBntwith ffspxt to the finarKesof th¢ BGA ha5 Iw CaTyied out by the Fib)an¢ia] and GencTal PUr￿Se$ suknnjmitttt. A gigterof d5k5 ¢5tablithdwhl¢h Rview¢dat1¢4$1 •nnugJly. Wh¢rE apptowiatr. M¢￿u[c$hO¥e i¢knified to n]itiBAd ri6kg th¢ ¢hwity f&L$. Organbatlon•l CoAt¢xt The Associion's is Ih¢ 41¥8r¥xneniof wbllc ed￿￿10n In the subJcct5 of soil rock meclMThi¢% Ind engirttringgty)hTrLY at￿ in their 8pplicalion ¢r en8￿e￿I]ng) whith 15 not yometh¢n8 lI￿t w e￿$t in isolatithi ttnd there we many iJnp)rtant lit￿5 With other eiiglIieeTi￿s discipli￿5 and seiertces. AIthotsEh totslly sepvJatr from other o[gani￿￿OIs Asswation seeks to t(￿0￿￿￿1c in of 1￿m￿mOn groundwithother bDdie The Anual R¢wrt on p4es 2 to 9 w&%a5yovd bylbe CAimmitthe on 03 ju￿ and w&8 SiBncd on its behalf by Dr ANiTew Rfdky. Chair of Ih Lommilkc g¢9

THE BRITISH GEOTECHNICAL ASSOCIATION G& Trustses. Annual Rgport for the year endèd 31 Dgcomber 2024 Independent ExamlD¢r'5 Report to the Tr￿tee5 of the British C¢otttbnical Asso¢latio l Tewrt to the 'fru5tees on my examination of the accounts of the Brilish Geotechni￿1 A5xKialion for the )'eaT rndcd 31 December 2024. which ar¢ sd out on pages I I to 17. Respe¢tlv¢ respoDsibllitie5 of trn$t¢es And exarniDer As the charity tr￿St￿ of the Asso¢iation. you are r(swnsible for the ]xtparaiion of the 8¢¢owits' in accordance with th¢ requiremenis of th¢ C.harilies Act 2011 ('the Act'}. I report in respe￿ ofmy examination ofthe Tnjst's ac¢ountS ca￿led oul under srftion 145 of the 2011 Ad and in catryin8 Out my examination I havc follow￿ oll the appliLitbl¢ Directions gii.'¢n by the Clwity. l￿depend￿t Euminer's statement I have completed my examlnaiion. I confirm that no maierial matters have come kn my att¢ntion in connection with the examination gi%'in8 me cause to bllievr thal in any mateTial r&4Pe¢t'. l. acco￿tIng records wer¢ not kept in resw of the Tn]st &8 required by section 130 of thc A¢L' or 2. th¢ a¢4x>unts (b not acwr<l with those records. or 3. thc accounts do not comply the applicable requiremenls conceming the forni and content of accounts set oul in the Chariti￿ IAcLx)unt5 snd ReFX)rts} Regulations 2008 other than anj requiJEment that the a¢¢ounts 8ivc a -true ond fair vicw which is not& mott¢r considcrcd a5 Part oran inde￿dent ¥xamination. I hav¢ no concerns and have comc across no other matters in connection with the &umination to which attention sh)uld thaivn in this repNJrt in order to enable a prow understarNJing of the ac￿￿nts to be re￿kned. Jonathan Healey FCA Lindeyer Frdncis Fcr8ustsn Ltd Chartered Accountants Nortb House 198 High StT(tt I'onbridge, Kent TN9 IBE. Page 10

THE BRITISH GEOTECHNICAL ASSOCIA TION STATEMENT OF FINANCIAL ACTIVITIES {INCLUDlTr¥G lTriCOME AND EXPENDITURE ACCOUNT) FOR TFIE YEAR liNDED 31 DECEMBER 2&24 2024 Totsl 2023 Totsl Notes Unre%tritted D¢$ign4¢td Income from: Ch¥rit*bl¢ #ctivitits 118,278 118,278 117,(XJ2 Otber trldlng itthitlts 88.673 10,000 98,673 177.897 Investment Income 7,410 7,886 15296 14,404 Totsl InconiD¥ 214,361 17,886 232,247 309.303 Expendlturt on: Raising fund5 104.99Y) &635 113.625 189.375 CbArit¥bl¢ 4¢txwitle8 179,302 8,046 187.348 152,927 Total expenditure 284.292 16,681 300,973 342.302 N¢t g#in$l (&)$s¢s) on ittvt$tm¢tsts Rcalistd Unreall￿d &068 14.232 12.102 21.348 20,170 35.580 11.065) 40,204 22.3 33.450 55,750 39,139 Net income and met move]nent in fund$ 47.631 34.655 112.9761 6,140 Rtcunciliation of funds Tota] fuTkJs Lyoughl forward 310.676 239,220 549,896 543,756 Total htKls c8Jried fOrw￿d 263.045 273,875 536.920 549,896 Thc statcmcnt of finJJJciai activty iKlude5 all gain5 and lows in the p¢rio All In￿Me ond ¢X￿ndI1u￿ deriv¢s from ¢ontiDuing activilie& Pagell

THE BRITISH CEOTECHNICAL A&SOCIATION BALANCE SHEET AT 31 DECEMBER2024 SG Notrs 2024 2023 FIXED ASSETS Mgrflet value of investments 549.039 483,259 CURREwf ASSETS Cash at bank Cash on short tern d¢pKssit 79.716 18.896 61.030 165,948 9.429 22,938 159.642 198,315 CURREhry UABILrriEs 171.761 I3]￿78 NET CURRENT Assrrs (12.119) 66.637 TOTAL ASSETS 536.920 549,896 Financd by: ACCUMUiATED TriTNDS UnY¢strict¢d Designaied Fwid6 263,045 273,S75 310.676 12 536.920 549.896 Th¢ notes on pa8e 13 to 17 forni partofthtse fina￿1￿ stat¢rntii Approved by the Lyjmmitttt on 03 2025 atsd signegAon its behalf by: DT AThdrew Rid Chair Tony Bowenno Honorary Tr￿u[cr Page 12

SG THE BRITISH c￿.oTEC.HNlcAL ASs￿lATIo11 Note5 to the fininelal stst¢meDts for the y￿r elld¢d 31 De¢ember 2024 l R¢5pon$ibllttie5 of the Comrnittt¢ The Cort￿nit[¢¢ is r48w)nsible for maintrainin8 proper accounting records ivhi¢h disclosc with reasonable accuraLy at any time the financial p05itivn of the AssociaÈion and ltsi tsaknng reasonable steps li)r the prffi'ention and dclection of fraud and othcr irregularities. In preparing thc financial 5tstements the Committee required ts)= a) .%clc¢t suitgble accounting policio8 and thaj apply them wns15￿tJY b) make judgements and ¢stimaics that are reasonable F(udent cl prepare ihe finan¢ial statements nn the going eonc&m basis unles5 it is inapFYopriate to presuEne that the Asyocialion will contirtue to opcrate. 2 Aetountlng Pollcies The fjnancial stamenLS have been prepéied in ac¢ordance with the Financial Reportin8 Standard 102 (effectivc January 20191 {I."RS IQ2). thc COmp￿DieS Aa 2006 a￿d ihe reouir¢men15 of thr Statemcni of Recommended Pra¢ti¢e {SORP) applicablc to Chariti￿ preparing their aCl￿unlS ID accordance with the Financial Re[￿l￿g Standard applieablc in the UK and Republic of Ireland IFRS 102) (effective l January 20191 (Chariti¢5 SORP FRS 102). are initia]ly rewgnised at hi5t()rical cost or transaction valu¢ uAles5 otherwi% 5tatol in the relevont accounting rK)licy note(81. 'rherc 8rc no material un¢ertainties aEK>ut the ¢harity's ability to rontithu< and so the going COn￿M basis ot"accounling h Income All subscriptions and inve5tmenl income is ac£ounted for when receiYe(L cxcept irt the case of subscription5 whi¢h ore speLifi¢8]ly ststed to be in respecl of dn ensuing accountin8 period. No Credit is taken for subscr1￿t0nS unpaid al the 'I'rnding incornc from events is accounted for wh¢n the Association has entitlement lo the income, the income 1$ probable and can be rne￿Ured rcliably. Exptttdhur¢ bxpendiiur¢ 1$ recognised Nvhen ther¢ is a legal or con5tTULlive obligation to Iran5t￿ rc50urces to a third party) setll¢ment is probablc and the dmount can be measured ￿liablY. ExFenditure is inLluded within the 8wemenl of Firwi¢ial Activities on Fund AccouDtin¥ Unrestricted fvnds can bc used in a¢c(dgnce with the Lharithble objectives ofih¢ Society, at the di5¢r¢tion of the'l'rvstc&s. Restridcd fvnds can only be used for thc partscular restricted puryises Within the objectives ul'the Societv. Th¢ association ha5 thc following d¢si8nat&J funds: The Rankine Fund h8s been con501idat¢d into the British Geotechni¢J A%s(Kiatson Mcwunts. The BGA KnowledxeSupportFMnd Iprtwlousty BGA Fund) Thc BGA Knowledge Supwrt Fund has been consolidated ints) the British Cjeotechnical ASS￿1&1iOn accounts. Inv¢$ttntnts iTrv¢stment8 relate and are identified &s unrcalised. Cash held part of the inve5tm¢nts portfolio is included in inveslmtnts. TAxatiOtt The chariiy is exempt fTOTD laxalion OD Its charitable &tiViti￿. Page 13

THE BRITISH GEOTEC.HliICAL ASSOCIA"fioN eG Not¢s ¢0 th¢ fuJAnciv415tgteJn¢Dts for the year ended 31 Detember 2024 3. Cbaritable 4ctivitie$ 2024 21123 hleFnbers subscTlPllntL IJDited Kingdom Europe Afri¢ Asia Australasi North America South Amcrica 101,804 5,807 577 3,461 3,716 2.509 404 100.150 6,662 476 4.062 3,657 1.495 51M) 118.278 117.002 4. Other Irding ttivikn G¢tttrnl Rankine Fund BGA Fund ID¢slgnatedl {De5ignated) Total Rankin¢ Dinner Conlerence Annual Munbcrs DiTJn¢r Early CarLrr Group Other Function Income B(K>k sales and Tvvalii¢s 25,720 18,950 27250 9.400 7,240 10.(KJo 35.720 18,950 27250 9,400 7,240 88.673 10.O(K> 98.673 S. Investment G￿er￿1 Rankine Fund BGA Futtd )e$igDated} (De5igtt#ted) Tot1 Inv&strnent In¢om¢ 168 15,296 6. Rii5ing hnds Gelleral RamkbDe Fund BGA Fllnd (Desigll8¢ed) {DesigD*ted) Totgl Rankinc Di1￿¢r￿[￿lure Annual Conlerence Anrt￿l Meinbcry DinH¢r Touring Lc¢tUTe Early C8Teer (yroup YGEC Sp¢¥ia) Even Invesunent Managemeni l.¢¢ 31.375 13.780 36,002 2.362 9.999 1.564 8,775 .133 6,935 38,310 13.780 36.(K12 2.362 8,775 2.833 1,700 104.990 8.635 13.625 Page 14

SG THE HRITISH CrE(yfEcHNICAL A&iSOCIA'IJOY otes to the financial ststcments for the y￿r ended 31 Detember 2024 7. Charltsble attlvllleg 2024 2023 Subscriptions to other bodies Awards & prize5 Administrnion Honoraria Websiie It)suran¢¢ Postagc Printing, ST￿10￿ery and photocopyin8 Publicity and Prornotiorj M¢eting expenses Publication- Ground Etlginerring Other expenses Prof¢ssional F¢¢s Reviewer Fee Cost of trustees meeting Communiry supw)rt activities Bank charges 19,228 10,786 26,833 11.7QO 3,558 1.001 17 2,980 13.860 6,864 80.431 66 2.160 ,170 2,677 3.900 17J95 8.251 23,958 11,700 4,854 30 2,880 3,960 1,288 75,188 1,158 .247 913 105 187.348 152,927 Inve5tments- R#nki￿e fund 2024 2023 Mark¢t value at l January 2024 Di5W>5als at markei value Acquisitions ai cost N¢t gain on revaluation 478,382 1442.0841 453,37¥ 55.750 422.924 (216.121) 232,440 39,139 Listed investt)Jents at mark¢t value at 31 December 2024 545,426 478J82 Cash on dep)sit awaiting investment 3,613 4,877 Market valu¢ &8 at 31 December 2024 549.039 483,259 9. Debton 2024 2023 Other Debtors (including PrepaymenLS) Arnount due fro]n ICE 22,001 39.029 13,704 9,234 61,030 22.938 Page 15

SG THE BRITISH GE(yfECHNICAL ASSOCIATION IYot¢$ to ¢h¢ fI￿ne)￿l statements for the year ￿ded 31 Detember 2024 10. Creditors 21124 2023 credito￿ and accruals Subscripiions aAd other receipts in advance 119,806 51,955 108,624 23.054 171,761 131,678 Funds held on behalf of fMGM amount to £28,419 at year end. 11. AD&lys15 of net ass¢ts between fuDds Unrestricitd Fund5 Deslgnlted Funds Total Funds Fund b41gnces At 31 DeCeM￿r 2024 repre5¢nted by: Investtn¢nts cu￿ent assets Currcnt liabilities falling due within one year Transf¢r between fund5 219,616 151100 (171,7611 63,090 329.423 7,542 549.039 159,642 1171,761) (63.090) 263,045 273,875 536.920 Fund bAlsnces Bt 31 D￿ember 2023 repr¢g¢Dted by.. Investments C￿￿ent asscts Current liabilities falling du¢ within one year Transfer between funds 193,303 194,586 (131,6781 54,465 289.956 3,729 483,259 198,315 {131,678) (54.4651 310.676 239.220 549,896 BGA Knowledge Suppori Fund 12. ik5ignated fund anstysis RwNkine Fund Totsl B￿all￿ brought forward at l January 2024 235,491 3.729 239220 Diwd¢nds and interest teceived tksi&nated income Desi8nated ¢xp¢nditUT¢ Investment Management fees Gain on invtsthi¢nt assets 7.718 168 10,000 (8,046) 7.886 10,O(K) (14.981 J 11,700} 33.450 16.935) (1,700) 33.450 Fund balanc¢s Ca￿led foTward at 31 December 2024 268,024 5.851 273,875 Page 16

CG THE BRITISH GEOTECIINICAL ASSOCIATION Notes to ihe financial ststem¢nts for the year wded 3] December 2024 13. Trn5tee expenses Expenses reimbursed to 3 Trustees. rclaiing to Annual Conf¢r¢nee. FMGM expen5e¥ Post op flowers and Trustee meetings 2024 21123 478 7,034 o. No. Number of Trustees 14. HoTroTary Offiee D￿￿8 the ycar. the Association's HO￿￿Y OfficeTS received h()noraria amounting to the followin8.' 2024 2023 Nick Anns(rong- HonDrary Secretary Totly BoweTman- Honorary Tr¢￿uler Martin PreeD¢- Honorary Publi¢tty oificer Yvonne AitLSWOrth- Honorary TreaSu￿r until 2023 6.000 3,600 iioo 6.000 2,100 1.500 2,100 11.700 11,700 15. Staff The Association doe5 not employ staff dijrctly. Page 17