The register
The register lists Fuel Additive Science Technologies Ltd in Shrewsbury, Shropshire as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Fuel Additive Science Technologies Limited is the registered name (Companies House number 05469984), a private limited company on the register since 2005. The registered office is at Unit 29 Atcham Business Park, Upton Magna, Shrewsbury, Shropshire, SY4 4UG, SY4 4UG. Its filed activity puts it in manufacturing.
Holding a licence is the expensive, slow part done. For Fuel Additive Science Technologies Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.