Frontier ↔ Heirloom

Frontier: a firm purchase of 26,889 t of direct air capture removal from Heirloom.

BuyerFrontier

SupplierHeirloom

Tonnes26,889 t

Amount$26,600,000

Price$989 per tonne

Capture pathwayDirect air capture

Storage mediumgeological

Durabilitydurable, 1,000 years or more

Durability basisseed-curated

Commitment typefirm

JurisdictionUnited States

Deal structureofftake

Dac variantother

Delivery windowby 2030

Source pathway descriptionlimestone looping tray-stack direct air capture

Price derivationusd_amount/tonnes, derived not quoted

NotesAnnounced jointly with CarbonCapture Inc. as $47M combined — Frontier's first DAC offtakes. Storage geological or mineralized in concrete.

Stated jurisdictionUS

Stated tonnes at announcement26900

Tonnes notetonnes trued to the Frontier portfolio page, 2026-09-01

on the record, owner-reviewed · discovered via frontier-writing · extracted 2026-08-11

Also reported by heirloomcarbon.com ↗

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More: Heirloom · Direct air capture