POLICY EXPRESS · PE-ENB-154 · Environment and Ecology Bureau
Green Fuels: Sustainable Aviation Fuel and Green Hydrogen
Targets and a certification date are set; who pays, who supplies and who buys have not yet been settled.
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2 pages · English and 繁體中文 · Built on the 1134211 Framework · Facts as at 25 October 2026
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The tension and our thesis
The tension
The Government wants airlines and hydrogen users to switch to costly new fuels that are made mostly outside Hong Kong, yet it has not fixed who bears the extra cost or when a mandate would apply.
Our thesis
Certify first and contract volumes next: buyers will commit when rules, quality and cost-sharing are published.
Three policy problems this brief examines
- 01A costly fuel with no stated payer
- 02Supply and recognition lie across the boundary
- 03Hydrogen is still at trial scale
Each problem is developed in three layers: the fact, why it persists, and the consequence for the system.
Three options compared
A · Mandate early: require SAF and green hydrogen shares from 2028.
B · Market-led: subsidies and certificates only; no mandate.
C · Anchor buyers: airport, government and fleet purchases first.
The scored comparison, the justified recommendation with its phased measures, the implementation challenges, the stakeholder assessment and the success metrics are in the full brief.
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Both pages, in English and Traditional Chinese: the introduction and background, key figures, the three policy problems, the scored options, the recommendation with its phased measures, the implementation challenges, the stakeholder assessment and the conclusion.
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Facts and figures are checked against primary sources where we could retrieve them. † marks press-only figures. (J) marks IRB judgements. Facts as at 25 Oct 2026.
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