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ISTAT Sustainability Symposium

About the 2025 ISTAT Sustainability Symposium

The Sustainable Aviation Journey: Remaining Relevant in an Ever-Changing Landscape

In April 2025, ISTAT welcomed nearly 200 delegates from across the aviation community to the fourth annual ISTAT Sustainability Symposium in Dublin. Hosted at Avolon’s headquarters and in partnershp with impact on sustainable aviation, the day featured seven dynamic sessions and 15+ expert speakers exploring the evolving challenges and opportunities in sustainable aviation. Thank you to everyone who joined us.

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2025 Symposium Schedule

9:30 - 10:00

Registration 
10:00 - 10:15

Opening Remarks

  • Bryson Monteleone, ISTAT Sustainability Symposium Chair and Senior Advisor, Aviation Finance Advisory Services, PwC Ireland
  • Andy Cronin, Chief Executive Officer, Avolon
10:15 - 11:00

Keynote Presentation

  •  Brian Moran, Chief Sustainability Officer, The Boeing Company
11:00 - 11:15

Presentation of the ISTAT Sustainability Award
11:15 - 12:00

Panel Discussion: Political Challenges in Sustainable Aviation

Moderator: Paul Sheridan, Aviation Finance Advisory Services Leader, PwC Ireland

 

Speakers:

  • Thomas Fowler, Director of Sustainability & Finance, Ryanair 
  • Donal Handley, Head of Government Affairs and Sustainability, AerCap
  
12:00 - 13:00

Lunch
13:00 - 13:45

Panel Discussion: Macroeconomic Issues and Aircraft Values

Moderator: Jim Morrison, Chief Risk Officer, Avolon

Speakers:

  • Richard Evans, FRAeS, Senior Consultant, Cirium Ascend Consultancy
  • Ben Chapman, Director – Aircraft & Sustainability, ICF
  • Stephen Rooney, Lead Economist, Tourism Economics
13:45 - 14:45

Interactive Discussion: Financing the Adoption of Future Technologies

Moderator: Marc Tembleque-Vilalta, SVP Portfolio Strategy, Avolon

Speakers:

  • Hal Calamvokis, Senior Advisor
  • Sandrine Lacorre, Product Marketing General Manager, CFM
14:45 - 15:30

Panel Discussion: Sustainable Aviation Fuels and Aircraft Technology Options

Moderator: Michael Halaby, Managing Director - Head of Aviation Advisory, MUFG Bank, Ltd.

Speakers:

  • Dan Da Silva, Chief Operating Officer, JetZero
  • Julien Manhes, Head of SAF and CDR, Airbus
  • Ivor van Dartel, CEO and Co-founder, Vaeridion GmbH
15:30 - 15:45

Networking Break
15:45 - 16:30

Panel Discussion: Strategies for Sustainably Linked Loans and Leases (Financing)

Moderator: Dr. Ulrike Ziegler, President, impact on Sustainable Aviation

Speakers:

  • Jean Chedeville, Global Head of Aviation, Natixis CIB
  • Kaiori Creed, Senior Vice President Airline Marketing, EMEA, SMBC Aviation Capital
  • Emma Giddings, Partner, Norton Rose Fulbright LLP
  • Gordon Grant, Vice President, Head of ESG, ACG
16:30 - 17:00

Closing Remarks

  • Alison O'Connor, Vice President Sustainability, Avolon
17:00 - 18:00

Networking Reception
 
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