Inventure Renewables and CPM|Crown Launch Global Partnership for “SimplEster”

August 11, 2026

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(Biofuels International) In the United States (US), Inventure Renewables, a developer of proprietary process technologies for the oleochemical and biofuel industries, and which has deployed over US$250 million in first-of-kind processing capacity across North America and Asia, and CPM|Crown have announced a global, non-exclusive partnership to bring Inventure's proprietary "SimplEster" esterification technology to biodiesel producers worldwide, paired with CPM|Crown's established sodium methylate systems.

The partnership is anchored by a proven commercial installation at Western Iowa Energy LLC (WIE), a 45 million gallon (≈ 170 million litre) per annum biodiesel production facility located in Wall Lake, Iowa (IA), where SimplEster was commissioned in 2024 as the platform’s first deployment in the United States.

A catalyst- and enzyme-free esterification technology

According to a statement, what sets SimplEster apart is what it leaves out. The process requires no added catalyst and no enzyme, removing two of the most expensive and maintenance-heavy inputs in biodiesel manufacturing.

The result: fewer inputs, fewer systems to maintain, and no consumable catalyst cost for the life of the unit.

At WIE, the SimplEster add-on integrated directly into an existing sodium methylate transesterification system without replacing it, increased plant capacity by approximately 15 percent, and produced on-spec biodiesel.

It ensures acid value below 0.5 mg KOH/g, and, because the process is tunable, it can be configured to a range of acid-value targets, as low as 0.2 mg KOH/g, depending on a producer’s existing infrastructure, process, feedstocks, and finished-fuel requirements.

That flexibility matters for producers who need to stay under the 0.5 mg KOH/g acid-value threshold for finished fuel, as they may lack certain downstream processing equipment.

WIE was already processing lower-carbon-intensity feedstocks, recovering free fatty acids through conventional steam-strip distillation, much of which was historically sold off at commodity prices.

The SimplEster add-on lets WIE capture that value internally instead, converting those fatty acids into on-spec biodiesel within its own process rather than selling them downstream.

We didn’t want to tear out a system that works. We’d been running lower-CI feedstocks for a while, but we were leaving value on the table every time we sold that fatty acid off. Inventure let us keep it, convert it, and get more out of the same footprint, and they stayed with us to figure out what else we can run through it. That’s a partnership, not a transaction, said Brad Wilson, CEO of Western Iowa Energy.

Evaluating additional side stream processing

Building on that result, Inventure and WIE are now evaluating additional side streams through the SimplEster unit, including black esters recovered from the sodium methylate glycerol decanter recycle loop; this is a reflection of the technology’s robustness across a wide range of feedstocks – used cooking oil (UCO), tallow, distillers’ corn oil, poultry fat – and of the two companies’ ongoing collaboration.

For years, ester production meant choosing between a catalyst or an enzyme and paying for one of them for the life of the plant. SimplEster does neither. At Western Iowa Energy, it dropped in alongside a plant’s existing methylate system, added capacity, and vertically integrated a low-value by-product into a finished biodiesel product, and we’re still at the table with them, extending it further. Partnering with CPM|Crown lets us put that same result in front of producers worldwide, backed by an install they can go see for themselves, said Ryan Long, CEO of Inventure Renewables.

Offer SimplEster as a bolt-on

Under the new partnership, CPM|Crown will offer SimplEster as a bolt-on to its current technology, giving producers already operating sodium methylate systems a straightforward path to greater feedstock flexibility, added capacity, and more efficient conversion of lower-carbon feedstocks.

Inventure and CPM|Crown’s methylate technology are a natural fit, and we’ve now seen them run together in person. For a producer already operating a sodium methylate system, adding SimplEster is a straightforward way to expand feedstock flexibility and capacity. Pairing it with CPM|Crown’s sodium methylate biodiesel processing technology is a strong step forward for both companies, said Bill Morphew, VP, CPM|Crown.

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