Sonaecom SGPS S A informs on proposal regarding item 4 of the agenda of the Annual General Meeting of Shareholders convened for 30 April 2026 (Erratum)

‌SONAECOM, SGPS, S.A.

Shareholders' General Meeting to be held on 30 April 2026

PROPOSAL OF THE STATUTORY AUDIT BOARD ITEM 4 OF THE AGENDA

Considering:

1. The term of office for the 2024-2025 biennium of the current Statutory External Auditor, PricewaterhouseCoopers & Associados - Sociedade de Revisores Oficiais de Contas, Lda., first appointed for the 2016-2019 four-year term, and reappointed for the 2020-2023 four-year term;

2. Pursuant to paragraph 3 of article 54 of Law no. 140/2015, of 7 September, as amended, the maximum consecutive term of office of a statutory external auditor in a public interest entity is 10 years;

3. Under subparagraph (f) of paragraph 3 of article 3 of Law no. 148/2015, of 9 September, and subparagraph (b) of paragraph 2 of article 420 of the Portuguese Companies Code (Código das Sociedades Comerciais), both as amended, it is the competency of the Statutory Audit Board to propose to the Company's Shareholders' General Meeting the appointment of the statutory auditor;

4. That, in compliance with the applicable law and with its internal policy, the Statutory Audit Board has fulfilled the provisions of subparagraph (f) of paragraph 3 of article 3 of Law no. 148/2015, of 9 September, and of article 16 of Regulation (EU) no. 537/2014 of the European Parliament and of the Council, of 16 April 2014, having conducted, with the support of the Company's departments, an extensive selection process, free from any external influence and free from any contractual clause of the type referred to in paragraph 6 of article 16 of Regulation (EU) no. 537/2014 of the European Parliament and of the Council, of 16 April 2014.

In the selection process, promoted and supervised by the Statutory Audit Board, several audit firms of recognized national and international competence and reputation, with a long-standing presence in the market, were invited to participate.

For this purpose, the Statutory Audit Board previously defined the eligibility criteria and their respective weighting, which required a detailed assessment of various items to be presented by the candidates, such as: resources and coordination capacity; quality and dedication of the fieldwork; types, number and timing of reports to be issued; communication tools; and the cost of the services.

The conclusions of the selection performed as described above were combined with the outcome of the weighting and with the analysis of compliance with the independence requirements of the statutory external auditor/audit firms, under the applicable legal and regulatory framework.

The Statutory Audit Board also assessed the independence conditions of the candidates in the tender.

The candidates demonstrated that they act free from any pressure, influence or interest, guiding their conduct by compliance with the ethical rules applicable to the exercise of their duties and, at the economic level, no threats to their independence were identified arising from the weight of the fees received from the Company and its Group in relation to their overall portfolio of services.

In light of all of the above, the Statutory Audit Board proposes that the Shareholders' General Meeting resolves to:

1. Elect KPMG & ASSOCIADOS - Sociedade de Revisores Oficiais de Contas, S.A., corporate person no. 502161078, with registered office at Edifício FPM 41, Avenida Fontes Pereira de Melo, no. 41, 15th Floor, 1069-006 Lisbon, registered with the OROC (Ordem dos Revisores Oficiais de Contas) under no. 189 and with the CMVM (Portuguese Securities Market Commission) under no. 20161489, represented by Pedro Jorge Quental e Cruz (registered with the OROC under no. 1765 and with the CMVM under no. 20161607), with professional address at Edifício FPM 41, Avenida Fontes Pereira de Melo, no. 41, 15th Floor, 1069-006 Lisbon, as Effective Statutory External Auditor for the 2026-2028 term of office;

2. Elect as Alternate Statutory External Auditor Pedro Manuel Bouça de Morais Alves da Costa (registered with the OROC under no. 1466 and with the CMVM under no. 20161076), with professional address at Edifício Burgo - Avenida da Boavista, no. 1837, 16th Floor, 4100-133 Porto, for the 2026-2028 term of office.

   Or, alternatively, having regard to the provisions of subparagraph (f) of paragraph 3 of article 3 of Law no. 148/2015 and paragraph 2 of article 16 of Regulation (EU) no. 537/2014, and considering the results of the assessment of the four audit firms that participated in the tender process,

3. Elect FORVIS MAZARS & ASSOCIADOS - Sociedade de Revisores Oficiais de Contas, S.A., corporate person no. 502107251, with registered office at Rua Tomás da Fonseca, Centro Empresarial Torres de Lisboa, Torre G, 5th Floor, 1600-209 Lisbon, registered with the OROC under no. 51, represented by José Fernando Abreu Rebouta (registered with the OROC under no. 1023 and with the CMVM under no. 20160637), with professional address at Edifício Icon Douro, Rua Manuel Pinto de Azevedo, nos. 106-126, 1st Floor - Q2 and Q3, 4100-320 Porto, as Effective Statutory External Auditor for the 2026-2028 term of office;

4. Elect Pedro Filipe da Silva Cruz (registered with the OROC under no. 1682 and with the CMVM under no. 20161292), with professional address at Rua do Crasto, n.º 660, 1.º Esq., 4405-550 Vila Nova de Gaia, as Alternate Statutory External Auditor for the 2026-2028 term of office.

Having regard to the above options, the Statutory Audit Board, in compliance with the provisions of subparagraph (f) of paragraph 3 of article 3 of Law no. 148/2015 and paragraph 2 of article 16 of Regulation (EU) no. 537/2014, recommends the election of KPMG & ASSOCIADOS - Sociedade de Revisores Oficiais de Contas, S.A., corporate person no. 502161078, with registered office at Edifício FPM 41, Avenida Fontes Pereira de Melo, no. 41, 15th Floor, 1069-006 Lisbon, registered with the OROC under no. 189 and with the CMVM under no. 20161489, represented by Pedro Jorge Quental e Cruz (registered with the OROC under no. 1765 and with the CMVM under no. 20161607) as Effective Statutory External Auditor, and the election of Pedro Manuel Bouça de Morais Alves da Costa as Alternate Statutory External Auditor (registered with the OROC under no. 1466 and with the CMVM under no. 20161076), in both cases for the performance of duties in the 2026-2028 three-year term, such recommendation being justified by the fact that, among the two options referred to above,

they obtained the highest overall assessment under the selection criteria adopted in the consultation process carried out and meeting the requirements deemed appropriate for the performance of the role.

This proposal has been prepared free from any third-party influence, and no restrictions have been imposed regarding the selection of specific categories or lists of statutory auditors or audit firms.

In compliance with the provisions of article 289, paragraph 1, subparagraph (d) of the Portuguese Companies Code, the information legally required in respect of each of the above-mentioned persons is attached to this proposal.

Maia, 26thMarch 2026

The Statutory Audit Board,

João Manuel Gonçalves Bastos

Maria José Martins Lourenço da Fonseca Óscar José Alçada da Quinta

KPMG & ASSOCIADOS - Sociedade de Revisores Oficiais de Contas, S.A., corporate entity no. 502161078, with registered office at Edifício FPM 41, Avenida Fontes Pereira de Melo, no. 41, 15th Floor, 1069-006 Lisbon, registered with OROC under no. 189 and with the Portuguese Securities Market Commission (CMVM) under no. 20161489.

Represented by:

Pedro Jorge Quental e Cruz, registered with the OROC under no. 1765 and with the Portuguese Securities Market Commission (CMVM) under no. 20161607), with professional address at Edifício FPM 41, Avenida Fontes Pereira de Melo, no. 41, 15th Floor, 1069-006 Lisbon.

The company, its partners and directors do not hold any shares in SONAECOM, S.G.P.S., S.A. or in companies with which it is in a control or group relationship.

Over the past five years, the firm has performed, in a significant number of companies, the functions of Sole Auditor and Statutory Auditor, as provided for in articles 262 and 413 of the aforementioned Code, the full list of which is extensive. In accordance with Law no. 140/2015, of 7 September, this information has been submitted to the Portuguese Securities Market Commission and to the Portuguese Institute of Statutory Auditors.

Does not hold any shares in Sonaecom, SGPS, S.A.

Pedro Manuel Bouça de Morais Alves da Costa (registered with the OROC under no. 1466 and with the CMVM under no. 20161076), with professional address at Ed. Burgo - Avenida da Boavista, no. 1837, 16th Floor, 4100-133 Porto.

Does not hold any shares in Sonaecom, SGPS, S.A.

FORVIS MAZARS & ASSOCIADOS - Sociedade de Revisores Oficiais de Contas, S.A., corporate entity no. 502107251, with registered office at Rua Tomás da Fonseca, Centro Empresarial Torres de Lisboa, Torre G, 5th Floor, 1600-209 Lisbon, registered with the OROC under no. 51.

Represented by: José Fernando Abreu Rebouta (registered with the OROC under no. 1023 and with the Portuguese Securities Market Commission (CMVM) under no. 20160637), with professional address at Edifício Icon Douro, Rua Manuel Pinto de Azevedo, no. 106-126, Floor 1 - Q2 and Q3, 4100-320 Porto.

The company, its partners and directors do not hold any shares in SONAECOM, S.G.P.S., S.A. or in companies with which it is in a control or group relationship.

Over the past five years, the firm has performed, in a significant number of companies, the functions of Sole Auditor and Statutory Auditor, as provided for in articles 262 and 413 of the aforementioned Code, the full list of which is extensive. In accordance with Law no. 140/2015, of 7 September, this information has been submitted to the Portuguese Securities Market Commission and to the Portuguese Institute of Statutory Auditors.

CURRICULAR FRAMEWORK

PERSONAL DATA

NAfi E. José Germando Abreu Rebouta

DATE OF BIRTH. December 7, f977. Moz‹ambique NA TIONALITY." Port•Ruese

ACADEMtc aAci«snou/vD Bachelor's DeRree in Audi !•R

• H 8/;er/nsritvre ofAccountin$.andAdministration oI Lisbon. 799G - B.achelor's Degree in

  Auditing

  MBA in Finance

• F.acuity of Economics of the L/n/ ersi orPono. JO07

  Pos‹R › uate Degree in Tax.ation

• F.acuity of Law of the university ofPolo. ZOOS.

• ISAG - Higher Institute of Administration andN‹a agement - European Business 'school, 2017

  PROFESSIONAL q uALiFlCA rio/vs

  'statutory Auditor (COC), reR"•tered with rue Order of state Auditors (OROC) under number 7 013,

  since 1998, reR"•tered with rue CMVM under nvmder 707 6OG37.

  Certified Public Accountant since 7996 (No. 5170 ,-

  Member of rue ColleRe of Specialties in Financia I Accounting of the Order oI Certified Public

  Account.ents (OCC) since J0f7.

  PROFESSIONAL ACTIVITY AND EXPERIENCE

  'since 79n4 at NOTE/S MAZoAS & Associados, SROC, and since ZOOS Internation. I P. rtner at FORVIS I tAZARS, also holding the following positions.

• Co-Head of Industry and Services (Audit & Assurance) • Co-Head of rue Technica I and Audit Doctrine Committee (until2022),-

• Co-Head of the Qu. lity Control Committee (until 2022).

• Director of FORVIS MAZAR' & Associ. dos. SROC, SA.

  FORVIS fi AZARS & Associa dos. SROC, So is reRistered win; the Order of Offici. I Auditors under number S 7 and registered with the CMVt4 {Securities and Exchange Commission under number 2016 7 394 - /V/DC SOA 7 OCMS 7.

  Mazars, since 7 ùù7, has òeen inte$rated into the intern. tional partnership FORVI' t4AZARS, a European-bas ed group vritn ar internationa f focus specia tizi R !n a LJditin$ and consultÌ•R • PO£t+R•^ t4.PZ.ms has o/›'/ces in Lisbon, Porto, Leiria, and Loulé, frit/; doug 330 people. Further information is available at www.forvismazars.com/pt.

  
  
  

• Memder of the Svperv/sory 6oard, Statutory Auditor (ROCA for number os companies and

  $roups in v. rious sectors of industry and services, including t/;e/r respective holding comp. nies;

• ALlÓltirJ$ ‹8rTÓ ‹5 tlAQ ‹BS ‹8 SF‹8tLIFO ALIÓ/tO£ in irJtEIFrJ‹5tiON‹5l and rT‹8FiOrTa Í EiCOrTO/7TfC $FOLI|DS,'

• Consolid. tion ora ccounts, Reneral aceoun !•R. End inform. tion systems,-

• Review offunctional organiz‹stion, internal control, and ccounting systems,-

• Compli.once with tax aspects in individual ‹and Rroup sert/ngs.'

• IAS/IFRS s7anÓ. rds, • Trainer a7 the Order of S7atuto Auditors.

• Memder of the Representative Assembly or the Order of Certified Public Account‹snts (for

  Porto/.

  ADDRTtONA L INFORMATION

  
  
  

• Fluent in English.

• Fluent in French.

  ,Demin or.s ,can ñonere.see.s:

• Attended and participated as spe.Aker and coordin. tor in seminars and congresses, both in PO£t+R•›l and abroa d - France, Spain and the L/cited Kingdom - on A ccoun !•R, A uditin$ and Taxation topic s.

• Trainer in risk-Based Auditing'"at the Order of Official Auditors. 20 79 and 2020. relevant public.Orions nd/or works presented.

• Extra ordinary Tax Credit for Investment - ccountin$ notes and context'", loom. of the Order

  oI Official Accountants no. 772, July 2014, Portugal

• NC:RFI 3 - Interests in joint ventures and investments in ssocia tes and the equity method".

  2014, 2015 and TO16, Order of Offici. I Account‹a ts, PO£t+R•^!

• Tax contextuotizo tion of centralizea the.a svty manaRement (cash poolingl /n an internarion.a i

en iro ment'", October 2005, Fa culty of L. w of the University of Porto, POrt+R›

Does not hold any shares in Sonaecom, SGPS, S.A.

Pedro Filipe da Silva Cruz, registered with the OROC under no. 1682 and with the Portuguese Securities Market Commission (CMVM) under no. 20161292, with professional address at Rua do Crasto, no. 660, 1st Floor, Left, 4405-550 Vila Nova de Gaia.

CURRICULAR FRAMEWORK

PERSONAL DATA

NAfi E. Pedro Filipe da 'Silvia Cruz

DATE OF BIRTH. February 27, 7 378, Portugal NA TIONALITY." Port•Ruese

ACADEMIC BACi«snou/vD

Bachelor's DeRree in Economics

• F‹sculty oI Economics of rue L/n/ ersi of Boro, JO07

  Pos‹R › uate Degree in Tax.ation

• ISAG - Higher Institute of Administr.ation and M.an.agement - European Business School. ZOOS

  PROFESSIONAL a uALiFlCA rio/vs

  'statutory Auditor (COC), reR"•tered with rue Order of state Auditors (OROC) under number 7682, since 1074, reR"•tered with the CMVM under number 20161292;

  PROFESSIONAL ACTIVITY AND EXPERIENCE

  'since 70O3 at FORVIS MAZoAS & Associados, SROC, local Partner, actu.ally as Associate Partner and c.undid.ate for JO7C to International Partner at FORVIS MAZA US, win; the develop oI th following fntern. runctfons.

• Sof M - In charge for the Intellige nt resources

• Member of CTD (Commitee for Technical and Doctrine), 2014-2022

• Commitee Helpdesk Auditsoft (CAS)

• Member of the M ET (Management Extended Team) Committe e, 2019-2021

• 9UM Audit I&S (Bu siness Unit M anage ment) Committee, 2019-2021

• Recruiting auditors (Interviews and Universities)

• Au dit Trainer at ForVis M azars

• EQR (Engagement qu ality Reviewer) for the firm on annual engagement reviews

• EQR (Engagement qu ality Reviewer) for a PIE on sports sector expertise

  FORVIS fi AZARS & Associa dos. SROC, So is reRistered win; the Order of Offici. I Auditors under number S 7 and registered with the Ct4Vt4 /Securities and Exchange Commission) under number

  2016 7 394 - /V/PC SOA 7 OCMS 7.

  Mazars, sin ce 7 ûû7, has öeen inte$rated into the international partnership FORVIS t4AZAR5, a

  European-based group with an internationa I focus specia lizin8in a uditin$ and consuItin8 In

  +8^ *•Zars has o/î'/ces in Lisbon, Porto, Leiria, and Loulé, with aöout 330 people. Further information is ava/îoö/e at www.forvismazars.com/pt.

  
  
  

• Performance of the our/es as Sta tutory Auditor(ROC ,-

• Audit or severaI numöer of companies and 8roups in various sectors or industry and services,

  including their respective holding companies;

• Auditin8internationa I and national economic $roups,-

• Significant experience in Auditing, Accounting, and Finance;

• Extensive knowledge of Accounting, Finance, and Taxatio n;

• Diversified experience in auditing, internal contro ts, statutory audits, and consu fting (in cluding the preparation of business plans) for companies in the comm ercial, industria t, and banking sectors;

• Financial auditing for business valuation purposes;

• Au diting and conso tidation of company accounts, as well as validation of international re ports;

• Experience in acquisition audits (due diligence);

• Extensive experience in validating national and internationa f îEuropean Commission} investment projects;

• IAS/IFRS standards,-

  ADDRTtONA L lNFORI•iATION

• Fluent in English.

• Intermediary conversational in Spanish

• Elementary conversationalin Franch.

Does not hold any shares in Sonaecom, SGPS, S.A.