Platts to launch UK HEFA SAF Certificate assessments April 27

Platts, part of S&P Global Energy, will launch daily assessments for UK HEFA Sustainable Aviation Fuel Certificates effective April 27, 2026.

The assessments will reflect the value of UK SAF Certificates generated from the delivery of SAF produced via the hydrotreated esters and fatty acids pathway and used to demonstrate compliance with the energetic obligation placed on aviation fuel suppliers under the UK SAF Mandate.

The decision follows increased liquidity entering the 2026 compliance period, driven by heightened obligations. The assessments were first proposed Feb. 16.

Under the policy, the obligation period ends on Dec. 31, and obligations are surrendered on Sept. 15 the following year.

These prices will be assessed for the most recent obligation period that has yet to be surrendered, alongside the following obligation period. Each certificate discharges 34MJ of the obligation, with assessments published in pence per certificate

Platts will assess:

• A previous year vintage from the start of January until Sept. 15 (starting from the beginning of 2027)
• A current year vintage from the first to the last working day of the calendar year
• A next year vintage from the start of November to the last working day of the calendar year

For example, Platts will publish 2027 UK HEFA SAF Certificates as:

• Next year obligation from Nov. 2, 2026, until Dec. 31, 2026
• From Jan. 4, 2027, until Dec. 31, 2027, they will be published as current year obligation
• Finally, from Jan. 3, 2028, until Sept. 15, 2028, they will be published as previous year obligation

The assessments will reflect transactional volumes from 250,000 to 5 million UK SAF Certificates. Volumes outside of these parameters may be considered and normalized to the basis level.

The assessments will reflect the first quarter of the year transfer and payment terms of 5-7 days after the transfer. Pricing information reflecting other terms may be considered and normalized to the specification.

The assessments will be published daily at 4:30 pm London time market close, following the UK publishing calendar.

These assessments will appear in Biofuelscan, Weekly Biomass Based Diesel report, and the Platts price database.

Please address any questions or comments to platts_biofuels@spglobal.com and pricegroup@spglobal.com .

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing. Platts will consider all comments received and will make comments not marked as confidential available upon request.