Montana Renewables Launches MaxSAF™ Blended, Advancing Sustainable Aviation Fuel

Rhea-AI Summary

Calumet (NASDAQ: CLMT) subsidiary Montana Renewables on Oct 27, 2025 launched MaxSAF™, a nominal 50/50 blended sustainable aviation fuel (SAF) certified to ASTM D7566 and ASTM D1655 specifications for drop-in use. Montana Renewables commissioned onsite blending and shipping at Calumet Montana Refining and will initially distribute MaxSAF through AEG Fuels to select aviation hubs in Montana, Washington, and Oregon via truck rack deliveries. The company positions MaxSAF to serve regional operators, support ESG and Scope 1/3 goals, and use local low‑carbon feedstocks (tallow, distillers corn oil, canola, used cooking oil, camelina). Montana Renewables says it is one of three North American SAF producers at commercial scale.

Positive

• SAF certified to ASTM D7566 and D1655
• Initial distribution via AEG Fuels network to MT, WA, OR
• Truck rack sales expand SAF access outside major airports
• Uses local low‑carbon feedstocks (tallow, oils, camelina)

Negative

• Initial rollout limited to select hubs in three states
• Product is a nominal 50/50 blend, retaining fossil jet content

GREAT FALLS, Mont., Oct. 27, 2025 /PRNewswire/ -- Montana Renewables (MRL), in collaboration with Calumet Montana Refining (CMR), has commissioned onsite blending and shipping facilities to offer a nominal 50/50 blend of renewable and fossil jet fuel certified under ASTM D7566 and ASTM D1655 specifications.

This finished product is drop-in compatible with all existing systems and will initially be distributed through AEG Fuels' network to select aviation hubs in Montana, Washington, and Oregon.

"AEG Fuels is honored to collaborate with Montana Renewables on this landmark SAF inaugural blend," said Landon Larson, Vice President, Supply NA at AEG Fuels. "Together, we're demonstrating how strategic partnerships can accelerate the transition to sustainable aviation and deliver real value to operators across our fueling network."

Why It Matters

• For Montana Renewables: MaxSAF™ sales from the truck rack allows local / regional service and opens the sustainable aviation market outside of major airports.
• For Customers: A drop-in fuel solution that helps meet ESG goals, reduce Scope 1 and 3 emissions, and enhance brand leadership.
• For the Environment: SAF reduces lifecycle greenhouse gas emissions, improves air quality compared to traditional Jet A, and supports a circular economy – farm to fuel.

About Montana Renewables

Montana Renewables (MRL) is a leading renewable fuel company located in Great Falls, Montana. We produce Sustainable Aviation Fuel (SAF), Renewable Diesel, Renewable Hydrogen, and Renewable Naphtha. As one of only three SAF producers running at commercial scale in North America, we meet the increasing demand for sustainable fuels. As a Great Falls business leader, MRL offers high-paying jobs and career opportunities while supporting the local economy and contributing to the community's overall well-being.  Pacific Northwest farm and ranch operations ultimately provide MRL with sustainable, renewable, low-carbon feedstocks and agricultural byproducts including tallow, distillers corn oil, canola oil, used cooking oil and camelina oil.  These are converted to renewable transportation fuels which have lower emissions compared to conventional fossil fuels.  MRL is an unrestricted subsidiary of Calumet, Inc.

About Calumet

Calumet, Inc. (NASDAQ: CLMT) manufactures, formulates, and markets a diversified slate of specialty branded products and renewable fuels to customers across a broad range of consumer-facing and industrial markets. Calumet is headquartered in Indianapolis, Indiana and operates twelve facilities throughout North America.

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SOURCE Calumet, Inc.

FAQ

What is MaxSAF from Montana Renewables (CLMT) and when was it launched?

MaxSAF is a nominal 50/50 blended sustainable aviation fuel launched on Oct 27, 2025 by Montana Renewables, a Calumet subsidiary.

Is MaxSAF approved for aircraft use and what specifications does it meet?

Yes. MaxSAF is certified to ASTM D7566 and meets ASTM D1655 Jet A compatibility for drop‑in use.

Where will Montana Renewables distribute MaxSAF and through which partner?

Initial distribution is through AEG Fuels to select aviation hubs in Montana, Washington, and Oregon via truck rack shipments.

How does MaxSAF help airlines meet ESG or emissions goals?

As a renewable blend, MaxSAF can reduce lifecycle greenhouse gas emissions and help carriers address Scope 1 and 3 reporting objectives.

What feedstocks does Montana Renewables use for MaxSAF production?

Montana Renewables cites regional low‑carbon feedstocks including tallow, distillers corn oil, canola, used cooking oil, and camelina oil.