2025 Corporate Report

To the Board of Directors of Transurban Holdings Limited, Transurban Infrastructure Management Limited (as the responsible entity of Transurban Holding Trust) and Transurban International Limited Independent Assurance Report on selected Subject Matter Information in Transurban Group’s 2025 Reporting Suite The Board of Directors of Transurban Holdings Limited (the Company) and its controlled entities (together THL), Transurban Holding Trust (the Trust) and its controlled entities (together THT), Transurban International Limited (the International Company) and its controlled entities (together TIL), and Transurban Infrastructure Management Limited (as responsible entity of the Trust) (TIML) (THL, THT, TIL and TIML as responsible entity of the Trust together being the Transurban Group or the Group)) engaged us to perform a combination of assurance in respect of selected Subject Matter Information (‘Subject Matter Information’) as described below and set out in the Group’s 2025 Corporate Report and the 2025 Sustainability Data Pack (together, ‘the 2025 Reporting Suite’) for the year ended 30 June 2025 (the ‘period’). The Criteria against which we assessed the Subject Matter Information was prepared by the Group and has been included in the Sustainability Basis of Preparation and the 2025 Sustainability Data Pack (‘the Criteria’), which is published on the Group’s website (Investor centre section), as at the date of this report. Subject Matter Information and Criteria We assessed the Subject Matter Information against the Criteria. The Subject Matter Information needs to be read and understood together with the Criteria. The Subject Matter Information and the Criteria are set out below: Limited Assurance Subject Matter Information – Table 1

Selected sustainability metrics for the year ended 30 June 2025 Total Scope 3 Greenhouse Gas (GHG) Emissions (tCO2e)

235,464

Renewable electricity percentage (%)

91%

Total customer GHG emissions (tCO2e)

1,562,995

Average GHG emissions saved per workday (tCO2e)

3,401

Total waste generated (assets and offices) (tonnes)

12,315

Asset general and inert recycled (waste diverted from landfill) (%) Office general and inert recycled waste (waste diverted from landfill) (%) Major project general and inert recycled (waste diverted from landfill) (%)

54%

48%

96%

Total water usage (m 3 )

121,526

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