Vertical Aerospace Partners with Syensqo to Support Industrialisation Plan for the VX4 Aircraft

LONDON & NEW YORK--(BUSINESS WIRE)--Dec 8, 2025--

Vertical Aerospace (“Vertical” or “Company”) [NYSE:EVTL], a global aerospace and technology company that is pioneering electric aviation, and Syensqo, a global leader in advanced materials, today announced a new long-term supplier partnership.

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Syensqo’s high-performance composite and adhesive materials - already used in Vertical’s prototype programme - have been selected for the VX4 aircraft, which is targeting certification in 2028 before entering into commercial service. This comes after multiple years of close collaboration between the teams at Syensqo and Vertical.

Syensqo’s advanced materials will be integrated across the entire structure, providing the lightweight strength, structural efficiency and durability required for the high-cycle operations of electric vertical flight. Securing advanced composite materials is critical in ensuring the VX4 can withstand repeated take-offs and landings while maintaining safety and performance at scale.

The VX4’s airframe itself will be manufactured by Aciturri, a leading global aerostructures supplier, supporting Vertical’s transition into full commercial production.

Syensqo brings extensive aerospace experience, supplying advanced materials to many of the world’s leading aircraft manufacturers and defence companies. This experience makes Syensqo an ideal partner as Vertical advances toward both civil and defence applications of its aircraft platform.

Stuart Simpson, CEO, Vertical Aerospace, said: “We are bringing the VX4 to market alongside leading global partners, and deepening our successful partnership with Syensqo as our advanced-materials supplier is a vital step in that journey. Their decades of expertise in lightweight, high-performance composites - combined with our shared commitment to safety and certification - will help us deliver a resilient, agile aircraft as we progress toward commercial operations.”

Rodrigo Elizondo, President Syensqo Composite Materials, said: “We are honored to deepen our collaboration with Vertical. Our advanced composite and adhesive technologies are designed to push the boundaries of lightweighting and performance, supporting the VX4’s journey toward safer, cleaner and more efficient air mobility. As Vertical moves into certification and industrialisation, we look forward to bringing our scientific expertise and strong customer partnership to support the VX4’s successful entry into full-scale production."

This extension of Vertical’s partnership with Syensqo comes as Vertical continues to formalise the core supply chain for its certification aircraft, alongside Honeywell, Aciturri, and other global partners.

Vertical plans to unveil its new aircraft design on 10 December in London, showcasing the VX4’s industry-leading design, passenger and luggage capacity, and global certification-ready architecture.

About Vertical Aerospace

Vertical Aerospace is a global aerospace and technology company pioneering electric aviation. Vertical is creating a safer, cleaner, and quieter way to travel. Its VX4 is a piloted, four-passenger, Electric Vertical Take Off and Landing (eVTOL) aircraft, with zero operating emissions. Vertical is also developing a hybrid-electric variant, offering increased range and mission flexibility to meet the evolving needs of the advanced air mobility market.

Vertical combines partnerships with leading aerospace companies, including GKN, Honeywell, and Aciturri, with its own proprietary battery and propeller technology to develop the world’s most advanced and safest eVTOL.

Vertical has c.1,500 pre-orders of the VX4, with customers across four continents, including American Airlines, Japan Airlines, GOL, and Bristow. Certain customer obligations are expected to be fulfilled via third-party agreements. Headquartered in Bristol, UK, Vertical’s experienced leadership team comes from top-tier aerospace and automotive companies such as Rolls-Royce, Airbus, GM, and Leonardo. Together, they have previously certified and supported over 30 different civil and military aircraft and propulsion systems.

About Syensqo

Syensqo is a science company developing groundbreaking solutions that enhance the way we live, work, travel and play. Inspired by the scientific councils which Ernest Solvay initiated in 1911, we bring great minds together to push the limits of science and innovation for the benefit of our customers, with a diverse, global team of more than 13,000 associates in 30 countries.

Our solutions contribute to safer, cleaner, and more sustainable products found in homes, food and consumer goods, planes, cars, batteries, smart devices and healthcare applications. Our innovation power enables us to deliver on the ambition of a circular economy and explore breakthrough technologies that advance humanity.

Learn more at www.syensqo.com.

Follow us on LinkedIn @Syensqo | Follow us on Instagram @Syensqo

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Any express or implied statements contained in this press release that are not statements of historical fact may be deemed to be forward-looking statements, including, without limitation, statements regarding a partnership with Syensqo for advanced composites and adhesive materials, including Syensqo’s supply and obligations under the partnership agreement, the efficiencies, reliability and expertise expected, the design and manufacture of the VX4 and the hybrid-electric variant, certification and the commercialization of the VX4 and our ability to achieve regulatory certification of our aircraft product on any particular timeline or at all, the features and capabilities of the VX4, business strategy and plans and objectives of management for future operations, including the building and testing of our prototype aircrafts on timelines projected, completion of the piloted test programme phases, selection of suppliers, as well as statements that include the words “expect,” “intend,” “plan,” “believe,” “project,” “forecast,” “estimate,” “may,” “should,” “anticipate,” “will,” “aim,” “potential,” “continue,” “is/are likely to” and similar statements of a future or forward-looking nature. These forward-looking statements reflect our current views with respect to future events and are not a guarantee of future performance. Actual outcomes may differ materially from the information contained in the forward-looking statements as a result of a number of factors, including, without limitation, the important factors discussed under the caption “Risk Factors” in the Company's Annual Report on Form 20-F filed with the U.S. Securities and Exchange Commission (“SEC”) on March 11, 2025, as such factors may be updated from time to time in the Company’s other filings with the SEC. Any forward-looking statements contained in this press release speak only as of the date hereof and accordingly undue reliance should not be placed on such statements. The Company disclaims any obligation or undertaking to update or revise any forward-looking statements contained in this press release, whether as a result of new information, future events or otherwise, other than to the extent required by applicable law.

Vertical's full-scale VX4 prototype during piloted flight testing

ELIZABETHTOWN, Ky. (AP) — Vice President JD Vance joined the grieving family of a Kentucky man who was the seventh U.S. service member to die in combat during the Iran war as his remains were brought back to the U.S. Monday evening.

The dignified transfer, a solemn event that honors U.S. service members killed in action, took place at Dover Air Force Base in Delaware for Army Sgt. Benjamin N. Pennington, 26, of Glendale, Kentucky. He died Sunday after being wounded during a March 1 attack on the Prince Sultan Air Base, Saudi Arabia, a Pentagon statement said.

Vance and Defense Secretary Pete Hegseth saluted alongside high ranking military officials as the transfer case draped with the American flag was carried from the military aircraft and into an awaiting vehicle.

Mike Bell, retired pastor of Glendale Christian Church, said he’d known Pennington since he was a toddler and got a call from Pennington's father when the soldier was hurt.

“I talked to Tim Saturday morning, and he was doing a little better, and they were talking about maybe moving him to Germany,” Bell said. Tim Pennington called again that evening, Bell said, to ask for prayers as his son's condition was worsening, and then later told him the soldier had succumbed to his injuries.

“He was just a quiet person,” said Bell, noting that Pennington attended the church’s after-school program. “I mean, he never attracted attention because he was just steady doing what he needed to do to do it.”

Pennington was assigned to the 1st Space Battalion, 1st Space Brigade of the U.S. Army Space and Missile Defense Command based at Fort Carson, Colorado.

The unit’s mission focused on “missile warning, GPS, and long-haul satellite communications,” according to their website.

“This just breaks my heart,” Keith Taul, judge-executive of Hardin County, where Pennington was from, said in a statement emailed to The Associated Press. “I have known the family for at least 30 years. I can’t imagine the pain and suffering they are experiencing.”

Glendale is an unincorporated town of about 300 residents south of the Hardin County seat of Elizabethtown.

In a statement posted on social media, Kentucky Gov. Andy Beshear called Pennington “a hero who sacrificed everything serving our country.”

The other six service members killed since the conflict began on Feb. 28 were Army reservists killed in Kuwait when an Iranian drone struck an operations center at a civilian port.

President Donald Trump on Saturday joined grieving families at Dover Air Force Base at the dignified transfer for those six U.S. soldiers.

The dignified transfer is considered one of the most somber duties of any commander in chief. During his first term, Trump said bearing witness to the transfer was “the toughest thing I have to do” as president.

Pennington graduated in 2017 from Central Hardin High School, where he was enrolled in the automotive technology pathway, district spokesman John Wright told the AP. Former automotive tech instructor Tom Pitt, who taught Pennington in 2017 at Hardin County Early College and Career Center, called him “an American hero.”

“A lot of times as a teacher, you have students who are smart, you have students who are charismatic, who are likable, dare I say, enchanting,” said Pitt, who called Pennington Nate. “Rarely do you have students who are all of those. And Ben Pennington was all of those. He was basically the quintessential all-American.”

Photos on his and family members' Facebook pages show that Pennington achieved the rank of Eagle Scout in August 2017. His Eagle project was the demolition of some old baseball dugouts in Glendale, said Darin Life, former committee chairman for Troop 221.

“If you look up Eagle Scout, his picture’s probably there,” said Life, who knew Pennington throughout his scouting career. “He loved his country. I would have expected nothing less of him than to lose his life protecting his country.”

A month after his Eagle ceremony, Pennington posted a photo of himself taking the oath of enlistment. He entered the service as a unit supply specialist and was assigned to the Space and Missile Command on June 10, 2025, the Army said in a release.

Among his awards and decorations were the Army Commendation Medal, Army Achievement Medal, Army Good Conduct Medal, National Defense Service Medal, Global War on Terrorism Service Medal and the Army Service Ribbon.

“The U.S. Army Space and Missile Defense Command is deeply saddened by the loss of Sgt. Pennington,” said Lt. Gen. Sean A. Gainey, USASMDC commanding general. “He gave the ultimate sacrifice for the country he loved.”

Col. Michael F. Dyer, 1st Space Brigade commander, described Pennington as “a dedicated and experienced noncommissioned officer who led with strength, professionalism and sense of duty.”

Pennington will be posthumously promoted to staff sergeant, the Pentagon said.

Associated Press reporters Konstantin Toropin in Washington, Hallie Golden in Seattle and Adrian Sainz in Memphis, Tennessee, contributed to this report.

A U.S. Army carry team places the transfer case with the remains of U.S. Army Sgt. Benjamin N. Pennington, 26, of Glendale, Ky., the seventh U.S. service member to die in combat during the Iran war, in the the transfer vehicle during a dignified transfer Monday, March 9, 2026, at Dover Air Force Base, Del. (AP Photo/Julia Demaree Nikhinson)

Vice President JD Vance, Defense Secretary Pete Hegseth, Chairman of the Joint Chiefs of Staff Gen. Dan Caine and other military leaders pray before a dignified transfer for U.S. Army Sgt. Benjamin N. Pennington, 26, of Glendale, Ky., the seventh U.S. service member to die in combat during the Iran war, Monday, March 9, 2026, at Dover Air Force Base, Del. (AP Photo/Julia Demaree Nikhinson)

Vice President JD Vance, Defense Secretary Pete Hegseth, Chairman of the Joint Chiefs of Staff Gen. Dan Caine, and other military leaders, salute during a dignified transfer for Sgt. Benjamin N. Pennington, 26, of Glendale, Ky., Monday March 9, 2026, at Dover Air Force Base, Del. (AP Photo/Julia Demaree Nikhinson)

Defense Secretary Pete Hegseth salutes as an U.S. Army carry team moves the transfer case containing the remains of Sgt. Benjamin N. Pennington, 26, of Glendale, Ky., Monday March 9, 2026, at Dover Air Force Base, Del. (AP Photo/Julia Demaree Nikhinson)

This image provided by the U.S. Army shows U.S. Army Sgt. Benjamin N. Pennington, 26, of Glendale, Ky. (U.S. Amy via AP)