Benson Hill Ultra-High Protein Soybean Meal Validated in Tyson Foods Feeding Trial

• Latest collaboration represents the third major poultry feeding trial using the Company's Ultra-High Protein, Low-Oligosaccharide (UHP-LO) soybean meal in poultry diets.
• Proprietary soy quality traits translate into higher nutritional efficiency and lower feed costs for poultry producers and integrators.

Benson Hill, Inc. (NASDAQ:BHIL, the "Company" or "Benson Hill")), a seed innovation company, today announced positive results from a controlled broiler feeding trial conducted with Tyson Foods. Study findings, consistent with those released in May 2024, demonstrate how Benson Hill's Ultra-High Protein, Low Oligosaccharide (UHP-LO) soybean meal offers a high-performance, cost-effective alternative to conventional soybean meal in poultry nutrition.

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BHIL, the "Company" or "Benson Hill")), a seed innovation company, today announced positive results from a controlled broiler feeding trial conducted with Tyson Foods. Study findings, consistent with those released in May 2024, demonstrate how Benson Hill's Ultra-High Protein, Low Oligosaccharide (UHP-LO) soybean meal offers a high-performance, cost-effective alternative to conventional soybean meal in poultry nutrition. (Graphic: Business Wire)">

Benson Hill, Inc. (NASDAQ:BHIL, the "Company" or "Benson Hill")), a seed innovation company, today announced positive results from a controlled broiler feeding trial conducted with Tyson Foods. Study findings, consistent with those released in May 2024, demonstrate how Benson Hill's Ultra-High Protein, Low Oligosaccharide (UHP-LO) soybean meal offers a high-performance, cost-effective alternative to conventional soybean meal in poultry nutrition. (Graphic: Business Wire)

The latest Tyson results validate that UHP-LO soybean meal (SBM) can fully replace conventional SBM in broiler diets and increase revenue potential for producers, without compromising animal performance. For instance, when formulated for cost advantages, UHP-LO SBM significantly lowered feed costs by increasing protein and higher metabolizable energy. Consequently, UHP-LO SBM gives poultry producers the opportunity to decrease the amount of SBM and fat added to the diet while keeping the necessary protein and energy levels.

In addition to the economic returns, animal outcomes in Tyson's 42-day UHP-LO trial were substantially equivalent and showed consistent performance. Broilers fed with UHP-LO SBM exhibited equivalent final body weights, feed conversion ratios, and carcass traits compared to those fed conventional SBM. Benson Hill plans to validate select carcass traits in future trials.

The benefits for poultry begin with Benson Hill's innovative seed development process, which dramatically lowers anti-nutrient levels (90 percent fewer oligosaccharides) in the soybean itself for a more digestible SBM. The UHP-LO SBM used in the trial also delivers 14 percent higher crude protein levels compared to conventional SBM. Together these soy quality traits and performance metrics can translate into higher nutritional efficiency and better margins for poultry producers and integrators.

"This commercial trial shows how Benson Hill's UHP-LO soybean meal is helping redefine poultry feed," said Matt Begemann, Senior Director of R&D at Benson Hill. "The positive results confirm how Benson Hill's UHP-LO soybean meal can generate higher nutritional and economic returns. Collaborating with a leader like Tyson Foods is consistent with our commitment to advancing soy quality traits that benefit the entire supply chain. For me, it's exciting to see our science play out in practice."

The feeding trial for Tyson involved more than 800 broilers in a controlled research environment. All diets were formulated to match standard nutrient requirements, with UHP-LO SBM demonstrating flexibility in inclusion levels. Poultry producers have enhanced flexibility with UHP-LO to formulate feeding rations for cost advantage (up to $0.20 per bird in this study) and bird performance gains (up to 5.4 percent in prior studies). These gains are significant and translate across the value chain. For the full research summary, visit https://bensonhill.com/industries/better-feed/poultry-feed/.

"The Tyson project illustrates the advantages of Benson Hill soybean meal for poultry producers seeking feed solutions with immediate benefits," said Dr. Roy Brister, Ph.D., an independent animal nutritionist and strategic advisor with four decades of industry experience. "Achieving performance parity with conventional soybean meal presents poultry nutritionists with a meaningful opportunity to optimize their performance feed by simply selecting a premium UHP-LO option."

Benson Hill's UHP-LO soybean meal is made exclusively from its proprietary soybean varieties and also exemplifies the Company's commitment to sustainability. The improved nutrient profile can reduce reliance on supplemental feed ingredients, contributing to lower carbon emissions and supporting Scope 3 reduction targets for end users.

With results from recent trials reinforcing the value of UHP-LO SBM, Benson Hill continues to expand its reach in the animal feed sector. The Company is working with value chain partners to ensure availability and adoption of its UHP-LO SBM while further researching animal feed applications in poultry, dairy, and swine. For more information on Benson Hill's non-GMO, UHP-LO soybean varieties and 2025 partner programs for growers, visit bensonhill.com/products/seeds.

About Benson Hill

Benson Hill is a seed innovation company that unlocks nature's genetic diversity in soy quality traits through a combination of its proprietary genetics, its AI-driven CropOS^® technology platform, and its Crop Accelerator. Benson Hill collaborates with strategic partners to create value throughout the agribusiness supply chain to meet the demand for better feed, food, and fuel. For more information, visit bensonhill.com or X, formerly known as Twitter at @bensonhillinc.

Cautionary Note Regarding Forward-Looking Statements

Certain statements in this press release may be considered "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements generally relate to future events or the Company's future financial or operating performance and may be identified by words such as "may," "should," "expect," "intend," "will," "estimate," "anticipate," "believe," "predict," or similar words. These forward-looking statements are based upon assumptions made by the Company as of the date hereof and are subject to risks, uncertainties, and other factors that could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These forward-looking statements include, among other things, statements regarding: the Company's progress toward an asset-light business model, and the anticipated pace of such transition; the Company's financial and operating performance during its business transition; the Company's cost-cutting measures under its expanded Liquidity Improvement Plan and other cost-saving measures, actions to implement such plan, and the anticipated benefits of and timeline to implement such plans; the Company's current expectations and assumptions regarding the industries and markets in which it operates; potential strategic partnership and licensing opportunities; the Company's anticipated liquidity, path to profitability, and runway for growth; expectations regarding the sources of expected revenues, costs, profit and earnings; projections of market opportunity; the anticipated advantages, potential and capabilities of the Company's seed portfolio and innovation pipeline and the expected timeline for the commercialization of the Company's current and anticipated innovations; anticipated demand for quality soy traits and the Company's seed innovations; the expected timeline for the expansion of the Company's seed portfolio; the expected timing and results of planned academic studies and commercial feeding trails; current projections and assumptions regarding the Company's business and the industries and markets in which the Company currently operates or plans to operate; expectations regarding the Company's ability to continue as a going concern; execution of the Company's business plan and the strategic review of the Company's business; any financial or other information based upon or otherwise incorporating judgments or estimates relating to future performance, events or expectations; the Company's strategies, positioning, resources, capabilities, and expectations for future performance; estimates and forecasts of financial and other performance metrics; the Company's outlook, and financial and other guidance; and management's strategy and plans for growth. Factors that may cause actual results to differ materially from current expectations include, but are not limited to: risks associated with the Company's ability to generally execute on its business strategy, including its transition to an asset-light business model in a timely manner with sufficient liquidity; risks relating to acreage acquisition; risks associated with developing and maintaining partnering and licensing relationships in an asset-light business model, and maintaining relationships with customers and suppliers; risks associated with realizing the anticipated advantages of the Company's seed innovations and products; the risk that the Company will not realize the anticipated benefits of the divestiture of its soy processing facilities; risks associated with the loss of revenues from the Company's divestiture of its soy processing facilities; risks associated with growing and managing capital resources; risks associated with changing industry conditions and consumer preferences; risks associated with the Company's cost-cutting measures under its expanded Liquidity Improvement Plan and other cost saving measures, including potentially adverse impacts on the Company's business and prospects even if such plans are successful; the risk that the Company's actions relating to cost-cutting measures under its expanded Liquidity Improvement Plan and other cost saving measures may be insufficient to achieve the objectives of such plans; liquidity and other risks relating to the Company's ability to continue as a going concern; risks associated with the Company's ability to grow and achieve growth profitably, including continued access to the capital resources necessary for growth; risks relating to the failure to raise additional financing to satisfy the Company's cash needs; risks relating to maintaining key employee, customer, partner and supplier relationships; risks relating to the Company's exploration of strategic alternatives; risks associated with the failure to realize the anticipated commercial or nutritional benefits of the Company's UHP-LO soybeans; risks that the benefits validated by the recent trial may not be able to be repeated or improved upon in the future; risks associated with the accuracy and repeatability of feeding trials generally; risks associated with the effects of global and regional economic, agricultural, financial and commodities market, political, social and health conditions; the effectiveness of the Company's risk management strategies; and other risks and uncertainties set forth in the sections entitled "Risk Factors" and "Cautionary Note Regarding Forward-Looking Statements" in our filings with the SEC, which are available on the SEC's website at www.sec.gov. The Company can make no assurances that it will be able to raise additional financing, improve its liquidity position, or continue as a going concern. Nothing in this press release should be regarded as a representation by any person that the forward-looking statements set forth herein will be achieved or that any of the contemplated results of such forward-looking statements will be achieved. There may be additional risks about which the Company is presently unaware or that the Company currently believes are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. The reader should not place undue reliance on forward-looking statements, which speak only as of the date they are made. The Company expressly disclaims any duty to update these forward-looking statements, except as otherwise required by law.

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