Thomas A. M. Djiwandono

Vice Minister of Finance II of The Republic of Indonesia

Febrio Kacaribu

Head of Fiscal Policy Agency of Ministry of Finance of The Republic of Indonesia

Yon Arsal

Assistant to the Minister for Tax Compliance of Ministry of Finance of The Republic of Indonesia

Suryo Utomo

Director General of Taxes, Ministry of Finance of The Republic of Indonesia

Pande Putu Oka Kusumawardani

Head of Center for State Revenue Policy, MoF Indonesia

Victor van Kommer

Head of Division for Cross Border and International Taxation, IBFD

Victor van Kommer became Director and Member of its Executive Board since 2008. Currently he is responsible for Capacity Building and Tailored Services.  

He joined IBFD in 2000 as head of the Government Consultancy Department 

Mr van Kommer previously worked for the Ministry of Finance in the Directorate General for Tax and Customs,  where he was also in charge of the Planning and Control Department, and later served as a member of the management team of the Fiscal Intelligence and Investigation Division (FIOD). He was also responsible for the merger of the Fiscal Investigation with Economic Police. He has published several books on the Dutch tax system and its organization. Secondly, he is known for his experience in how to organize and implement taxation and how this relates to public finance and taxation, process management, tax reform, performance management, risk management, auditing, investigation and change management. His recent Handbook on Tax Administration has been translated into several languages. 
Mr van Kommer holds a master’s and PhD degree in Tax Law from the University of Leiden and was Professor of Tax Policy at the Utrecht University School of Economics, period 2008-2022. He recently joined Nyenrode Business University as Professor Tax and Economics.  

Yustinus Prastowo

The Special Staff to Finance Minister For Strategic Communication Ministry of Finance of The Republic of Indonesia

Agustin Redonda

Senior Fellow The Council of Economic Policies (CEP)

“Agustin Redonda is a Senior Fellow with CEP where he focuses on fiscal policy. Prior to that he has been a research and teaching assistant with the Economics Department (IdEP) of the University of Lugano (USI). He also worked with the Organisation for Economic Co-operation and Development (OECD), as well as for the National Plan to Reduce Informal Activity (PNRT) at the Ministry of Labour, Employment and Social Security (MTSS) in Argentina. Agustin holds a PhD in Economics from the University of Lugano (USI), a MSc in Economics from University Paris I – Panthéon Sorbonne, a MSc in Economics from University Paris – Est Créteil, and a BA in Economics from the University of Buenos Aires (UBA).” 

Aisha Aize Isa

IBFD Manager

Aisha Aize Isa is a seasoned tax practitioner who specializes in international taxation and IBFD’s Manager for the Centre for Studies in African Taxation (CSAT) and Managing Principal for Africa and the Middle East Department, within the IBFD Knowledge Centre. There she oversees the identification of tax policy issues pertinent to Africa, provides authoritative research and insights on these issues; develops practical framework for policy solutions on such issues. She is also involved in capacity development within the region. 
 
She is an expert in international taxation and specializes in tax treaties and taxation of the digitalized economy of which she has been extensively involved in providing training in these areas. She was also a facilitator for the African Tax Administration Forum (ATAF) technical assistance to governments on tax treaty negotiations and double taxation agreements. 
 
Prior to joining IBFD, she served as a Manager at the International Tax Policy Division of the Federal Inland Revenue Service (FIRS), Nigeria, where she was a tax treaty negotiator and involved in policy and legislation development on international & domestic tax issues.  
Her work primarily focused on developing domestic policies on taxation of cross-border transactions, developing the implementation framework for international tax rules and standards, as well as serve as a focal officer on policies on international taxation of which she represented Nigeria in several international tax committees and working groups including the OECD’s Tax Force on the Digital Economy (TFDE), Working Party 1, Forum for Harmful Tax Practices,  as well as, in the UN subcommittee on Tax Treaty Manual. She also served in the secretariat of the National BEPS Implementation Committee of Nigeria where she was saddled with the responsibility for developing policies to implement BEPS outcomes. 

Denny Vissaro

Manager of DDTC Fiscal Research & Advisory

Denny Vissaro is Manager of DDTC Fiscal Research & Advisory. His research and expertise encompasses the fields of fiscal policy, international taxation, and tax facilities. Most of his projects relate to the works of the DGT, Fiscal Policy Agency, and private sector. On another note, he is also a regular contributor to DDTC News. He is often invited as a regular speaker at national and global events, including the Rust Conference held by WU University in 2017 and Tax Policy Dialogue held by ADBI in 2021. Denny is certified in Advanced Diploma in International Taxation from the Chartered Institute of Taxation, UK. 

Jim Parent

Nestlé Head of Group Tax

Jim is the Group Head of Tax for Nestlé SA based in Switzerland with subsidiaries operating in over 135 countries and sales into almost every global market.  His tax expertise spans over 30 years and includes sectors like food and beverage, oilfield services, and industrial conglomerates. Throughout his career, Jim has gained extensive experience in all facets of taxation - both in direct and indirect taxes, encompassing tax operations, strategic tax planning, mergers and acquisitions, and managing tax disputes. 
 
Jim's career in taxation has involved positions at PricewaterhouseCoopers, Tyco International Ltd., Weatherford International PLC, and Nestlé. He was the Vice President of Tax Reporting at Tyco and led the tax department at Weatherford before joining Nestlé as the US Head of Tax in 2018. He progressed to Head of Tax for Nestlé Zone North America in 2022 and then became the Group Head of Tax at the Nestlé headquarters in Vevey in 2023. 
 
Jim also has a strong academic background in accounting, law and taxation with credentials as a Certified Public Accountant,  J.D. from the University of Connecticut School of Law, Master’s in Taxation from the University of Hartford, and Bachelor of Science in Business Administration from the University of Connecticut. Jim has spoken at many events over the years covering areas of tax operations, tax technology, tax transparency, and tax incentives.  

John Peterson

Head of Division for Cross Border and International Taxation, OECD

John Peterson is Head of Unit responsible for the work on the design of the global minimum (GloBE) tax under Pillar 2 of the OECD’s Digital Economy Project. He joined the OECD 2013 prior to the launch of the OECD /G20 BEPS Project to lead the work on Hybrid Mismatch Arrangements. Prior to joining the OECD, John was a tax partner at Minter Ellison Rudd Watts. John has LLM from NYU and a BCL from Oxford University and has previously worked as a tax lawyer in New York, London and New Zealand. 

T Y Sim

Senior Advisor, Vienna University of Economics and Business, Global Tax Policy Centre

He is passionate in international taxation and has published books with Walter Kluwer CCH, Lexis-Nexis, Bloomberg BNA and IBFD. He combines academic research with practical industry experience, having served as Regional Vice-President (Europe, Middle-East, Africa, Asia and Latin America) of Tax Executive Institute, the largest tax professional association with more than 7,000 members globally and led global teams and regional teams at a European FTSE 100 and Fortune 100 US Technology MNE. 

Sofia Berg

Research Analyst at Council on Economic Policies (CEP)

Sofia Berg is a Research Analyst within the Fiscal Policy Program at the Council on Economic Policies (CEP). She has been actively co-organizing the ATI’s regional follow-up meetings on tax expenditures in Africa and Asia, as well as the launch of the Global Tax Expenditures Transparency Index (GTETI) in Zurich last year. She has co-authored the “Pocket Guide on Tax Expenditures for Parliamentarians” (ATI) and the report “Evaluation of tax expenditures – Conceptual frameworks and international experiences” (ECLAC-CEPAL). She holds a MSc in Economics and a BA in Politics and Economics, from Lund University School of Economics and Management.

Vikram Chand

Professor Tax Law & Policy at the University of Lausanne

Prof Dr. Vikram Chand is a professor of Tax Law & Policy at the University of Lausanne (UNIL). Switzerland. He currently also serves as the Program Director of the Executive Program in Transfer Pricing offered by UNIL. 
He main areas of research, teaching and consulting expertise relate to Pillar Two (Global Minimum Tax Rules), Pillar 1 (Amount A and Amount B), Transfer Pricing, Tax Treaties, Tax Controversy Management and the intersection between International Tax Law and other areas on international law(e.g. International Trade Law). 
 
He expertise is evidenced by an extensive list of publications. For Example, on the research front, He has published many articles in top peer-reviewed journals (such as the World Tax Journal, Intertax, British Tax Review and the International Tax Studies) or books (either monograph or edited books) with international publishers (such as Kluwer Law, IBFD or Schulthess). His doctoral thesis The Interaction of Domestic Anti Avoidance Rules with Tax Treaties-was also shortlisted for the prestigious Frans Vanistendael Award that is conferred by the IBFD. 

William Potts

Director in the International Tax Branch at the Australian Treasury

William Potts is a Director in the International Tax Branch at the Australian Treasury.  William leads the policy team responsible for implementing the OECD’s Global Anti-Base Erosion rules in Australia and is a delegate to the OCED’s Working Party 11.

Melinda Brown

Senior Advisor at the OECD’s Centre for Tax Policy and Administration (CTPA)

Melinda Brown is a senior advisor at the OECD’s Centre for Tax Policy and Administration (CTPA) with over 20 years’ experience in international tax, specialising in all aspects of transfer pricing practice, policy and law design. Melinda is an active member of the UN Transfer Pricing Subcommittee. 
 
As the head of a team supporting developing country members of the Inclusive Framework, Melinda has worked to assist capacity-constrained countries in addressing Base Erosion and Profit Shifting. Melinda has been the main author of the OECD’s reports on Developing Countries and International Tax presented to G20 Finance Ministers each year since 2021.  
 
In 2022, Melinda took up a position as a senior tax advisor in the OECD’s Jakarta office where she is responsible for co-ordinating the OECD’s relationship on tax matters with countries in Asia and the Pacific. Her current area of focus involves supporting jurisdictions in the region to participate in and implement the two-pillar solution to address the tax challenges of the digitalisation of the economy. 
 
Before joining the OECD, Melinda was a competent authority for Australia and a senior transfer pricing specialist at the Australian Taxation Office and the Australian Treasury.  

Mekar Satria Utama

Director of International Taxation at the Directorate General of Taxes, MoF Indonesia

Dr. Mekar Satria Utama, S.E., M.P.Acc was born in Kotabumi, June 23, 1968. He has been serving as Director of International Taxation since February 5, 2021. Previously assumed several positions, namely Advisor to the Director General for Human Resources Development and Management Affairs since 2011, Head of Kalimantan Selatan and Tengah Regional Tax Office since 2012, Director of Tax Dissemination, Service, and Public Relation since 2015, as well as Head of Large Taxpayers Regional Tax Office since 2016. In 1993, he earned his Bachelor of Economics from Padjadjaran University in Bandung. In 1999, he earned a Master of Professional Accounting from the University of Texas in Austin. He then pursued his Doctorate in Administrative Science at Brawijaya University.

Allan Partington

Director in the Revenue Performance branch of the Australian Tax Office

Melani Dewi Astuti

Senior Fiscal Policy Analyst, Fiscal Policy Agency of Ministry of Finance of The Republic of Indonesia

Lois Ruth Santiago

Financial Analyst, National Tax Research Center, Philippines

Lois is a financial analyst from the National Tax Research Center - Fiscal Incentives Review Board. She is the officer-in-charge of the monitoring and evaluation group responsible for analyzing the costs and benefits data in relation to the grant and administration of fiscal incentives, including tax expenditure estimation. She is also the technical lead in the annual conduct of the cost-benefit analysis, which focuses on determining the net benefits or costs of providing tax incentives, including evaluating the impact of the fiscal incentives provided against its policy objectives. 

Sebastiaan de Buck

Global Head of Tax of Unilever

Shabana Begum

Executive Director Tax Policy Sector at the Ministry of Finance of UAE

Shabana is an Executive Director leading the Tax Policy Sector at the UAE Ministry of Finance. Shabana is responsible for all domestic and international tax policy in the UAE and during Shabana’s time with the UAE Ministry of Finance, Shabana has led and overseen the introduction of the UAE’s first federal Corporate Tax regime and successfully led the UAE through an OECD Forum of Harmful Tax Practices (FHTP) review of the UAE’s Free Zone Preferential Regime. Shabana is also leading the UAE’s response to Pillar Two and Tax Incentives reforms.

 Shabana is the lead UAE delegate to the OECD Inclusive Framework and the UAE representative at the UN Tax Convention Committee Bureau. Prior to joining the UAE Ministry of Finance, Shabana was a Tax Partner and Board Member at KPMG. Shabana is a prizewinning Fellow of the Institute of Chartered Accountants in England and Wales and UK Chartered Tax Advisor. Shabana is a regular contributor on tax policy matters and has appeared on various global media outlets including CNBC and the Financial Times. 

Amy Leaver

Team Leader at the Australian Treasury (Prospera)

Amy Leaver is the Team Leader (Prospera) at the Australian Treasury. She previously supported the Indonesian Ministry of Finance during its G20 Presidency (from 2021 to 2022) and ASEAN Chairmanship (2023).   Prior to this, Amy held roles in Australian Treasury relating to a range of issues including international policy, macroeconomic and fiscal policy, economic forecasting and revenue forecasting and analysis. She has also worked at the Australian Taxation Office and Australian Department of Education. 

Christine Tjen

Taxation expert, University of Indonesia

Christine is a lecturer in the Department of Accounting at the Faculty of Economics and Business, University of Indonesia. She is an Australia Development Scholarship (ADS) awardee and graduated with a Master of International Taxation from the University of Sydney (NSW, Australia) in 2006, and a Bachelor of Accounting from the Faculty of Economics, University of Indonesia in 2000 with Cum Laude honors. Prior to becoming a lecturer at the University of Indonesia, she joined KPMG Jakarta in the Tax Consulting Division.

Christine is a taxation expert who has been involved in several research and training projects related to Indonesian taxation and financial accounting. She is also actively involved in the Tax Accountant Compartment of the Indonesian Institute of Accountants (IAI) and is a member of the IAI Certification Board for Professional Accountants (DSAP). Additionally, she is active in P3KPI and PERTAPSI. She has served as Deputy Head of Administration and Finance of LPEM FEB UI (2015 - 2021) and on the ITDC Risk Management and Investment Committee (2016-2020). Currently, she serves as the Coordinator of the Tax Education and Research Center (TERC) FEB UI since July 2018 and is also a Member of the Audit Committee of PT Pupuk Indonesia (Persero) from November 2020 to November 2023. Christine is currently an Expert on the Integrated Governance Committee of PT Pupuk Indonesia (Persero) since December 2023. 

Sathi Meyer Nandi

Tax Integrity Specialist, ADB

Shreya Pandey

Senior Adviser, Prospera

Shreya Pandey is a Senior Adviser in Tax Policy at Prospera (Australia-Indonesia Partnership for Economic Development). She has 16 years of experience working with various Governments and financial institutions in the areas of public policy and finance. She has a Masters in Public Administration in International Development (MPA/ID) from Harvard Kennedy School and a Masters in Economics from Delhi School of Economics.