Asian Institute of International Financial Law (AIIFL), HKU

Taxation for a Sustainable Environment

Taxation Law Research Programme (TLRP)

Multi-Date Session 1: 7 November 2025 (6:15 PM – 9:00 PM) | Session 2: 9 November 2025 (11:00 AM – 5:00 PM)
Location Academic Conference Room, 11/F Cheng Yu Tung Tower, The University of Hong Kong

Have you ever wondered what role taxation can play in addressing environmental degradation? And what is Hong Kong’s unique position within this global and regional environmental framework?

Beyond its primary purpose of revenue generation, taxation is used by governments as a lever to steer the economy and society. Archie Parnell, Professor of Law at Jindal Global University Law School, and guest speaker Professor Christine Loh, Chief Development Strategist at Hong Kong University of Science and Technology, will explore the crucial role of taxes and other forms of carbon pricing in confronting climate change, pollution, loss of biodiversity and other environmental degradations.

Topics covered will include:

☑ An analysis of key international climate agreements (the UN Framework Convention on Climate Change, Kyoto Protocol, and Paris Agreement) with a focus on nationally determined contributions (NDCs), and the integration of tax strategies into national climate plans.

☑ A comparison of the NDCs of the top three greenhouse gas emitters (China, the US, and India), as well as Hong Kong and Singapore, and an assessment of implications of the US withdrawal from the Paris Agreement.
An evaluation of carbon pricing mechanisms—carbon taxes, tax subsidies, emission trading systems
(voluntary/mandatory), and carbon border adjustment mechanisms—defining their operation and GHG coverage.

☑ Comparative carbon pricing and taxation in China (including Hong Kong), the US, India, and Singapore, positioning them within global carbon pricing strategies.

☑ An examination of other environmental taxes and fees, as well as excises, local fees and polluter-pays penalties of China (including Hong Kong), and the US, putting these costs in context of relevant international agreements on air pollution, ozone, hazardous waste, and biodiversity.
An exploration of future directions in environmental taxation.

Who Should Attend?
This introductory level program is designed for individual, including in-house practitioners, counsels, and postgraduate commerce or law students who seek a foundational understanding of the role taxes and other pricing mechanisms play in addressing environmental degradation. It offers a particular focus on Hong Kong within its regional and global context.

Topics covered will include:

An analysis of key international climate agreements (the UN Framework Convention on Climate Change, Kyoto Protocol, and Paris Agreement) with a focus on nationally determined contributions (NDCs), and the integration of tax strategies into national climate plans.

A comparison of the NDCs of the top three greenhouse gas emitters (China, the US, and India), as well as Hong Kong and Singapore, and an assessment of implications of the US withdrawal from the Paris Agreement.

An evaluation of carbon pricing mechanisms—carbon taxes, tax subsidies, emission trading systems (voluntary/mandatory), and carbon border adjustment mechanisms—defining their operation and GHG coverage.

Comparative carbon pricing and taxation in China (including Hong Kong), the US, India, and Singapore, positioning them within global carbon pricing strategies.

An examination of other environmental taxes and fees, as well as excises, local fees and polluter-pays penalties of China (including Hong Kong), and the US, putting these costs in context of relevant international agreements on air pollution, ozone, hazardous waste, and biodiversity.

An exploration of future directions in environmental taxation.

Course Fee: HK$800 per person (Payment link will be provided after successful registration. Course Fee is non-refundable.)

Enquiries: Candy Ip at aiiflhku@hku.hk (mailto:aiiflhku@hku.hk)

Presenters

Professor Archie Parnell

Professor of Law at Jindal Global University Law School in India; (AIIFL Fellowship: 7-9 November 2025 / 9 April 2025)

Archie Parnell is a Professor of Law at Jindal Global University Law School in India where he teaches tax courses (one of which covers taxation’s application to climate change). He has published in law reviews ranging from the Tax Lawyer to the Yale Law Journal. Before academia, Archie was a trial attorney at the Tax Division of the U.S. Department of Justice and on the staff of the Ways and Means Committee of the U.S. House of Representatives. He held senior tax roles at Exxon, Coudert Brothers and Goldman Sachs in the U.S., Europe and Asia. He has served on various tax committees and advisory boards, including the OECD's Business and Investment Advisory Committee (BIAC). In Hong Kong, he was a member of the Board of Review for 10 years. Archie was also Chair of the Capital Markets Tax Committee of Asia and participated in the Hong Kong Joint Liaison Tax Committee during that time.

Professor Christine Loh

Former AIIFL Visiting Fellow and Chief Development Strategist at Hong Kong University of Science and Technology; (AIIFL Fellowship: 7-9 November 2025)

Professor Christine Loh, Chief Development Strategist at Hong Kong University of Science and Technology, is a lawyer by training and a commodities trader by profession. She has been involved in public policy since the 1980s. She has served as a legislator in Hong Kong, a government minister in the HKSAR Government (Undersecretary for the Environment 2012-17) and special advisor to the Chief Executive of the HKSAR Government on the mainland’s environmental policies (2019-20). She currently serves on the boards of several for-profit and non-government organizations in Hong Kong and internationally that relates to sustainability. Her most recent new assignment in 2024 is serving as a member of the Steering Committee of the Climate Mobility Innovation Lab of the UN International Organization on Migration.