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Firefly Partners with Turkish HTL Technology to Complete Supply Chain

Firefly Partners with Turkish HTL Technology to Complete Aviation Fuel Supply Chain
Bristol / Ankara – May 20, 2026: British sustainable aviation fuel (SAF) innovator Firefly has secured a critical component of its supply chain through a strategic partnership with Turkish engineering firm Altaca. The agreement, formalised at a ceremony held at the British Embassy in Ankara with senior government officials present, grants Firefly access to Altaca’s CatLiq hydrothermal liquefaction (HTL) technology. This technology is pivotal for converting treated human sewage, or biosolids, into crude oil—a vital upstream process in the production of sustainable aviation fuel.
Completing the Supply Chain and Scaling Production
This collaboration equips Firefly with the full suite of technologies necessary to scale its “wet-to-jet” platform, which transforms biosolids sourced from UK water companies into affordable, sustainable aviation fuel. By addressing waste disposal challenges alongside the aviation sector’s urgent decarbonisation needs, Firefly aims to establish a circular and environmentally responsible fuel production model. The downstream refining process will be managed by Chevron Lummus Global, while airline Wizz Air has already committed to a 15-year offtake agreement for the finished fuel, underscoring strong market confidence in the initiative.
The partnership with Altaca not only finalises Firefly’s supply chain but also enables localised production, reducing exposure to global supply chain disruptions. Nonetheless, industry analysts caution that Firefly and Altaca must remain vigilant against geopolitical uncertainties, sudden route interruptions, and evolving trade dynamics that could affect supply chain resilience. As the SAF market intensifies, competitors are expected to respond by enhancing their own supply chain technologies and logistics capabilities. Notably, major corporations such as Amazon are expanding their supply chain services to provide faster and more reliable logistics solutions, potentially heightening competition in the sustainable fuels sector.
Leadership Perspectives and Industry Implications
The agreement was signed by Firefly co-founders James Hygate OBE (CEO) and Paul Hilditch (Strategy Director), alongside Altaca co-founders Alper Önoğlu (President) and Taner Önoğlu (Vice President). The signing ceremony was hosted by British Ambassador to Turkey Jill Morris CMG and attended by Deputy Minister of Trade Mahmut Gürcan.
James Hygate emphasised the rigorous global search and testing process that led to selecting Altaca as the technology partner. “With all the pieces now in place, we have an end-to-end platform and a new category of waste-to-fuels infrastructure. We can now get to work on saving carbon by the gigatonne,” he stated.
Alper Önoğlu highlighted the engineering prowess behind the partnership, noting, “Our solution provides the essential upstream step required to transform sewage sludge into high-quality bio-crude oil, enabling the production of truly sustainable aviation fuel. This partnership reflects our commitment to engineering excellence and our shared vision of decarbonising the aviation industry on a global scale.”
As Firefly advances its operations, the industry will closely monitor how the company manages operational complexities and competitive pressures within the rapidly evolving sustainable aviation fuel landscape.

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