Expands silicon carbide portfolio to capture growth in electrification and high-efficiency power markets

LaFox, IL | GlobeNewswire | May 19, 2026 – Richardson Electronics, Ltd. (NASDAQ: RELL) today announced a new global strategic partnership with NoMIS Power, a leading designer of advanced silicon carbide (SiC) power semiconductor technologies.

Through this collaboration, Richardson Electronics will expand its portfolio of next-generation power solutions by leveraging NoMIS Power’s rugged, reliable, and customizable SiC technologies. The partnership adds targeted capabilities across 1.2 kV to 10 kV, with particular emphasis on medium-voltage and high-voltage SiC solutions at 3.3 kV and above for demanding power conversion applications.

The partnership is expected to accelerate the adoption of high-performance SiC technologies across key growth markets, including battery energy storage systems (BESS), renewable energy conversion, AI data center power infrastructure, high-voltage direct current (HVDC) interfaces, solid-state transformers, rail and heavy-duty transportation, industrial drives, aerospace and defense power systems, marine power, and other mission-critical electrification platforms.

For customers developing higher-voltage systems, the collaboration also strengthens Richardson Electronics’ ability to support the transition from legacy silicon insulated gate bipolar transistor (IGBT) solutions to more efficient SiC-based architectures. In these applications, SiC can enable lower switching losses, higher switching frequency, improved thermal performance, greater power density, and more compact system designs.

This partnership enhances Richardson Electronics’ – Power & Microwave Technologies portfolio by adding advanced silicon carbide devices and modules that address rapidly growing global end markets. The addition of high-efficiency, high-reliability SiC solutions further strengthens PMT’s position in electrification and power conversion applications, supporting long-term revenue growth and expanded market opportunities.

NoMIS Power brings deep expertise in silicon carbide device design, advanced packaging architectures, power module development, and application-specific customization. Its portfolio includes medium-voltage and high-voltage SiC MOSFET platforms, as well as unique high-resistance small-die SiC solutions for compact, high-voltage, low-current applications. These devices are especially well-suited for applications such as insulation monitoring, solid-state relays, high-voltage sensing, auxiliary power supplies, and control and protection functions, where footprint, voltage capability, and reliability are critical.

“Partnering with NoMIS Power enhances our ability to deliver innovative silicon carbide solutions to our global customer base,” said Greg Peloquin, Executive Vice President and General Manager of Power & Microwave Technologies and Green Energy Solutions groups at Richardson Electronics. “Their advanced device design and packaging expertise complement our engineering capabilities and strengthen our commitment to bringing high-performance, energy-efficient technologies to market.”

NoMIS Power’s portfolio includes advanced planar SiC MOSFET technology spanning 1.2 kV to 10 kV, as well as hybrid and bi-directional devices, diodes, and power modules. In addition, the company’s capabilities in design customization, testing, reliability services, and application-level support help customers across the full product development lifecycle, from initial evaluation through system integration and commercialization.

“Richardson Electronics has a strong reputation for technical engagement, global customer reach, and commercial execution in demanding power markets,” said Gehan Wanduragala, Chief Strategy & Commercial Officer of NoMIS Power. “For NoMIS Power, this partnership is about more than expanding availability. It is about helping customers move more quickly from evaluation to design-in with stronger application support and a partner that understands the performance, reliability, and commercialization requirements of advanced power systems.”

This collaboration enables Richardson Electronics to provide customers with more advanced design solutions that improve system performance, reliability, and application fit, reinforcing its role as a trusted engineering partner in demanding power applications.

NoMIS Power will be exhibiting at PCIM Europe 2026 in Nuremberg, Germany, June 9–11, at Hall 4, Stand 301. Attendees interested in discussing high-voltage silicon carbide solutions are invited to contact Richardson Electronics to schedule a meeting with NoMIS Power’s engineering team.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; CT X-ray tubes; and customized display solutions. More than 50% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics, Ltd. common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at rellpower.com | relltubes.com | rellaser.com.

About Nomis Power

NoMIS Power develops advanced silicon carbide technologies that enable the next generation of high-performance power conversion systems. The company brings together deep capabilities in SiC device design, advanced packaging, power module development, and application-specific engineering to deliver rugged, reliable, and customizable solutions for demanding power markets. Focused on medium- and high-voltage applications, NoMIS Power helps customers move beyond legacy silicon IGBT approaches with SiC solutions that enable higher efficiency, improved thermal performance, and greater system-level optimization. Its portfolio includes advanced planar SiC MOSFETs, hybrid and bi-directional devices, diodes, power modules, and unique high-resistance small-die solutions for compact high-voltage, low-current applications. Through design customization, testing, reliability services, and application support, NoMIS Power works with customers from evaluation through commercialization. More information is available at NoMISPower.com.

Collaboration Expands Battery Energy Storage Solutions for Commercial, Industrial, and Utility-Scale Projects

LaFox, IL | GlobeNewswire | May 13, 2026 – Richardson Electronics, Ltd. (NASDAQ: RELL) today announced a new technology partnership with Gotion Inc, a global manufacturer of advanced battery technologies, to bring large-scale battery energy storage systems (BESS) to the multi-billion dollar U.S. market. The collaboration brings together two Illinois-based companies, Richardson Electronics in LaFox, Illinois, and Gotion Illinois’ battery manufacturing facility in Manteno, Illinois, to meet the rapidly growing demand for energy storage across commercial and industrial (C&I) and utility-scale applications.

Through this partnership, Richardson Electronics and Gotion will introduce two advanced BESS platforms: a 760-kWh system designed for C&I energy storage applications and a 5 MWh system engineered to support large-scale utility deployments. These systems will support projects ranging from customized C&I installations to large-scale utility projects in the hundreds of megawatts.

Manufactured and assembled in Manteno, Illinois, the new battery energy storage solutions will help customers manage rising electricity costs while providing greater control over energy usage and improving grid resilience. The collaboration also aligns with the continued growth of battery storage in Illinois following the rollout of the Illinois Climate Resilience and Grid Advancement (CRGA) program, which provides rebates of up to $250 per kWh for standalone battery energy storage systems.

With battery storage at the center of Illinois’ clean energy strategy, Richardson Electronics is well-positioned to support the expansion of BESS projects throughout the state and across the United States. The initiative will target both large-scale utility projects and customized C&I installations, helping organizations reduce energy costs and improve operational flexibility.

“Richardson Electronics is excited to partner with Gotion as we expand our power management and energy storage solutions portfolio,” said Greg Peloquin, Executive Vice President and General Manager of Power & Microwave Technologies and Green Energy Solutions groups. “Gotion’s advanced battery technology combined with Richardson’s deep knowledge of the U.S. power market and global engineering support capabilities positions us well to bring reliable, high-performance battery energy storage solutions to customers across utility and commercial markets.”

Under the agreement, Gotion will provide advanced battery technology produced at Gotion’s Illinois manufacturing hub in Manteno, Illinois, while Richardson Electronics will leverage its extensive experience in the U.S. energy market to support commercialization, engineering integration, and go-to-market strategy.

“This partnership reflects Gotion’s long-term commitment to building a localized, resilient battery supply chain in the United States,” said Jacky Yu, VP of Sales, Gotion, Inc. “By combining our advanced battery technology with Richardson Electronics’ deep market expertise, we are enabling scalable, domestically supported energy storage solutions that meet the growing reliability, cost and performance needs of U.S. customers across commercial, industrial and utility segments.”

“Our collaboration in Illinois represents an important step in expanding U.S.-based manufacturing and deployment of energy storage systems, supporting grid modernization, energy independence, and economic development,” Mr. Yu added.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; CT X-ray tubes; and customized display solutions. More than 50% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics, Ltd. common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner, and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. GES focuses on products for numerous green energy applications such as wind, solar, hydrogen, and electric vehicles and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit us at https://www.rell.com/greenenergysolutions/.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at rellpower.com | relltubes.com | rellaser.com.

About Gotion Inc.

Gotion Inc. is focused on advancing next-generation battery technology and energy storage solutions for the North American market. The company supports the development and localization of battery manufacturing, system integration, and energy storage deployment across the United States. Gotion Inc. works with local partners across the energy ecosystem to deliver reliable, high-performance solutions that strengthen grid resilience and support the transition to a more secure and sustainable energy future. For more information, visit us at https://www.gotion.com/

About Gotion Illinois

Gotion Illinois is developing advanced battery manufacturing capabilities in Manteno, Illinois, supporting the production and assembly of battery energy storage systems for domestic applications. The facility is designed to serve growing demand for energy storage across commercial, industrial, and utility-scale markets, while contributing to local job creation and the expansion of a U.S.-based battery supply chain. For more information, visit us at https://gotionillinois.com/

LaFox, IL | Globe Newswire | May 11, 2026 – Richardson Electronics, Ltd. (NASDAQ: RELL), a global provider of engineered solutions for the alternative energy and power management markets, and custom displays for medical and industrial OEMs, today announced that it will be participating in the 16^th Annual LD Micro Invitational at the Luxe Sunset Boulevard Hotel in Los Angeles, CA on May 18 – 19, 2026.

Richardson Electronics is scheduled to present on Monday, May 18, 2026, at 9:30 AM PT. Edward Richardson, Chairman and CEO and Wendy Diddell COO will be presenting on behalf of the Company.

To access the live presentation, please use the following information:

LD Micro Invitational XVI
Date: Monday, May 18, 2026
Time: 9:30 AM-9:55 AM PT
Webcast: https://ldmicroevents.com/

If you would like more information about the event or to book 1×1 investor meetings with Richardson Electronics, please contact LD Micro at registration@ldmicro.com. For more information on LD Micro, visit www.ldmicro.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions.

More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All of our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics, Ltd. common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About LD Micro

LD Micro, a wholly owned subsidiary of Freedom US Markets, was founded in 2006 with the sole purpose of being an independent resource in the micro-cap space. Through its dynamic, investor-driven conferences and curated company exposure, LD has served as an invaluable asset to all those interested in discovering the next generation of great companies.

For more information on LD Micro, visit www.ldmicro.com.

Forward-Looking Statements

This release includes certain “forward-looking” statements as defined by the Securities and Exchange Commission. Statements in this press release regarding the Company’s business that are not historical facts represent “forward-looking” statements that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see Item 1A, “Risk Factors” in the Company’s Annual Report on Form 10-K filed on August 4, 2025, and other reports we file with the Securities and Exchange Commission. The Company assumes no responsibility to update the “forward-looking” statements in this release as a result of new information, future events or otherwise.

Expanded platform supports enhanced visualization and seamless OEM system integration

LaFox, IL – May 7, 2026: Canvys – Visual Technology Solutions, a division of Richardson Electronics, and a global provider of customized display and visual technology solutions, today announced the expansion of its established 4K display platform for medical applications with the introduction of a new 32-inch monitor. A trusted partner to leading medical OEMs worldwide, Canvys provides display solutions integrated into a wide range of advanced clinical and diagnostic systems. The addition strengthens the company’s scalable platform strategy and broadens application capabilities for OEM customers and system integrators.

Building on the successful adoption of the 27-inch platform, the new 32-inch solution provides a larger viewing area to support applications requiring enhanced visualization and improved image clarity. The expanded format is particularly well suited for advanced medical environments where precision and detail are essential.

The platform is designed around a unified and scalable architecture that enables OEMs to transition between display sizes without major system redesign. This approach reduces integration complexity, streamlines validation processes, and supports long-term product lifecycle strategies.

Featuring Ultra HD resolution of 3840 × 2160, the monitor delivers high color accuracy and wide viewing angles for consistent and precise image reproduction. Typical use cases include robotic-assisted surgery, medical imaging, diagnostics, and visual inspection systems.

The core focus of the platform is adaptability. The monitor can be customized to meet specific OEM requirements across mechanical, optical, and electronic parameters. This flexibility allows Canvys to support tailored system development while improving time-to-market for specialized applications.

Designed for use in regulated medical environments, the 32-inch monitor complies with applicable standards, including IEC 60601. Its True Flat design and non-reflective surface facilitate efficient cleaning and disinfection, supporting clinical hygiene requirements.

“With the addition of the 32-inch monitor, we are providing our customers with greater flexibility to scale their medical systems while maintaining a consistent platform architecture,” said Rainer Bornwasser, Vice President of Global Sales at Canvys. “Our close collaboration with leading medical OEMs ensures these solutions align with evolving clinical and system-level requirements.”

With this expansion, Canvys continues to reinforce its position as a provider of customized visualization solutions, enabling OEM customers to deploy multiple display sizes within a consistent and reliable platform framework.

About Canvys – Visual Technology Solutions
Canvys, a Division of Richardson Electronics, Ltd. (NASDAQ: RELL), is a global value-added integrator and manufacturer that specializes in creating comprehensive visual technology solutions for Original Equipment Manufacturers (OEMs). Our collaborative approach allows us to evaluate each customer’s unique needs and craft the right solution using custom engineering, value-added outsourcing, or modified off-the-shelf components. We also provide complete post-sale service and support, including installation support, maintenance, troubleshooting, calibration, and conformance. For more information, visit us at www.canvys.com

About Richardson Electronics, Ltd.
Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components, including green energy solutions; tubes for diagnostic imaging equipment; and customized display solutions. More than 55% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and per our Supplier Code of Conduct. We serve customers in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at: https://www.rell.com.

Richardson Electronics’ common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

Forward-Looking Statements
This release includes certain “forward-looking” statements as defined by the Securities and Exchange Commission. Statements in this press release regarding the Company’s business that are not historical facts represent “forward-looking” statements that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see Item 1A, “Risk Factors” in the Company’s Annual Report on Form 10-K filed on August 4, 2025, and other reports we file with the Securities and Exchange Commission. The Company assumes no responsibility to update the “forward-looking” statements in this release as a result of new information, future events or otherwise.

Expansion into Brazil brings eco-friendly, cost-saving laser maintenance technology to Latin American fabricators

LaFox, IL | GlobeNewswire | April 22, 2026 – Richardson Electronics, Ltd. (NASDAQ: RELL), a global provider of engineered solutions, today announced that its LaserSlat SAVER™ is now available to customers in Brazil. This expansion provides fabricators in Latin America with a proven solution to reduce downtime, improve cut quality, and extend the lifespan of laser-cutting tables.

The LaserSlat SAVER™ is an innovative, eco-friendly solution designed to keep laser cutting slats clean and maintain them efficiently and effectively. By reducing slag buildup and restoring slat surfaces, our product helps maintain optimal cutting performance while minimizing the need for time-consuming mechanical slat cleaning and significantly reducing the frequency of slat replacement. The eco-friendly solution also supports environmentally responsible operations by using a safe cleaning approach that avoids hazardous chemicals while maintaining high performance. This results in reduced operational costs and increased machine uptime for manufacturers.

“With the introduction of the LaserSlat SAVER™ in Brazil, we are bringing a highly effective productivity solution to one of the largest manufacturing markets in the region,” said Greg Peloquin, Executive Vice President and General Manager of Power & Microwave Technologies and Green Energy Solutions groups. “Brazilian fabricators can now benefit from improved cutting consistency, lower maintenance costs, and extended equipment life.”

The system is compatible with a wide range of laser cutting machines and is designed for ease of use, allowing operators to quickly clean slats without removing them from the table. This streamlined process reduces labor requirements and keeps production running efficiently.

Richardson Electronics continues to invest in expanding its engineered solutions portfolio globally, supporting customers with technologies that enhance performance and reliability in demanding industrial environments.

Richardson Electronics will showcase the LaserSlat SAVER™ at FEIMEC 2026, taking place May 5–9, 2026, in São Paulo, Brazil. Attendees are invited to visit booth E030 to learn how the solution can improve laser-cutting operations.

LaserSlat SAVER™ is available now across the Americas through Richardson Electronics’ distribution network. For product details, technical information, and ordering, visit www.rellaser.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; CT X-ray tubes; and customized display solutions. More than 50% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics, Ltd. common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at rellpower.com | relltubes.com | rellaser.com.

Third-Quarter Net Income of $0.9 million, or $0.07 per diluted share. Q3 FY26 net sales increase led by a 9.7% YoY increase in PMT net sales. Total backlog at February 28, 2026, was up 11.4% from end of the fiscal second quarter

Read the full press release here

LAFOX, Ill., April 1, 2026 (GLOBE NEWSWIRE) — Richardson Electronics, Ltd. (NASDAQ: RELL) plans to release its financial results for its third quarter ended February 28, 2026 after the close of business on Wednesday, April 8, 2026. The release will be distributed by GlobeNewswire and will be available on the Company’s website at www.rell.com.

On Thursday, April 9, 2026, at 9:00 a.m. Central Time, Edward J. Richardson, Chairman and Chief Executive Officer, and Robert J. Ben, Chief Financial Officer, will host a conference call to discuss the Company’s third quarter fiscal year 2026 results. A question-and-answer session will be included as part of the call’s agenda.

Participant Instructions

Participants may register for the call here. While not required, it is recommended you join 10 minutes prior to the event start. A replay of the call will be available beginning at 1:00 p.m. Central Time on April 9, 2026, for seven days. Registration instructions are also on our website at www.rell.com.

In addition, the webcast link is available here .

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components including green energy solutions; tubes for diagnostic imaging equipment; and customized display solutions.

More than 55% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and per our Supplier Code of Conduct. We serve customers in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics’ common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

A simple innovation that reduces maintenance, boosts uptime, and lowers total operating costs

LaFox, IL  | March 10, 2026 – Richardson Electronics, Ltd. (NASDAQ: RELL), a global leader in the aftermarket of industrial laser consumables, today announced the launch of LaserSlat SAVER™, an innovative solution designed for all laser cutting machines that dramatically reduces maintenance time, extends equipment life, and lowers overall operating costs for fabricators.

LaserSlat SAVER™ is engineered to drastically decrease cleaning time and significantly reduce production downtime by preventing the buildup of slag on laser cutting table slats. With a simple, effective application process, the product helps manufacturers maintain optimal cutting performance while protecting critical machine components.

LaserSlat SAVER™ is manufactured by 3YO Technology, a specialist in advanced industrial surface protection solutions. Through this global collaboration, which includes exclusive distribution rights in the US, Richardson Electronics brings proven, high-performance technology to laser fabricators worldwide as part of its expanding portfolio of aftermarket laser consumables intended to promote repeat business.

LaserSlat SAVER™ delivers measurable value across a wide range of laser cutting operations:

• Decreases Cleaning Time
  Prevents slag and debris from sticking to table slats, removing the need for frequent manual scraping and cleaning
• Dramatically Reduces Downtime
  Keeps machines running longer between maintenance cycles, increasing overall production output
• Triples the Lifespan of Laser Table Slats
  Reduces wear and damage, significantly lowering replacement frequency and maintenance costs

The product is compatible with all laser cutting machines and performs effectively even on the latest high-power fiber lasers up to 100 kW, making it a future-ready solution for modern fabrication environments.

Richardson Electronics has built a strong global presence supplying high-quality consumables to the industrial laser aftermarket. LaserSlat SAVER™ is a strategic addition to the Company’s extensive portfolio, helping both existing customers and new prospects reduce the total cost of ownership while improving productivity and equipment longevity.

“LaserSlat SAVER™ represents exactly the kind of innovation we focus on, solutions that deliver immediate operational value for customers, while strengthening our recurring consumables business. As laser cutting technology continues to advance, this product positions us to capture additional share in a growing and increasingly high-power installed base,” said Greg Peloquin, Executive Vice President and General Manager of Power & Microwave Technologies and Green Energy Solutions groups.

LaserSlat SAVER™ is available now through Richardson Electronics’ global distribution network. For product details, technical information, and ordering, visit www.rellaser.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; CT X-ray tubes; and customized display solutions. More than 50% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics, Ltd. common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at rellpower.com | relltubes.com | rellaser.com.

3YO Technology:

3YO Technology provides specialized, 100% natural and certified biodegradable liquids designed to protect sheet metal surfaces during industrial laser cutting, plasma cutting and welding. Our solutions aim to improve performance, increase productivity while removing hazardous products from factories. At 3YO Technology, we believe the future of industrial operations lies in natural, high-performance solutions and systems, safe for people, effective for business, and respectful of the planet. More information is available at www.3YOTechnology.com

Collaboration Expands High-Performance RF Offerings Across Key End Markets

  LaFox, IL | Globe Newswire | February 10, 2026 – Richardson Electronics, Ltd. (NASDAQ: RELL) today announced a global technology partner agreement with Nxbeam, a leading millimeter-wave fabless semiconductor company. Under this agreement, Richardson Electronics will partner with Nxbeam to supply customers with a range of high-power microwave MMICs, with frequencies ranging from 12.5 to 76 GHz and output power up to 46 dBm.

Nxbeam is a technology company specializing in the design and development of advanced microwave electronic systems and components. The company focuses on high-performance, reliability-driven solutions for demanding industrial, scientific, and commercial applications, emphasizing innovation, precision engineering, and scalable manufacturability.

“Richardson Electronics is excited to partner with Nxbeam as we continue to expand our portfolio of advanced, high-performance RF & microwave technologies,” said Greg Peloquin, Executive Vice President and General Manager of Power & Microwave Technologies and Green Energy Solutions groups. “Nxbeam’s innovative approach aligns well with our long-standing expertise in RF and Microwave field component design-in and engineered solutions, and together we are well positioned to support customers with reliable, high-quality products and global reach.”

The technology partnership brings together Nxbeam’s proprietary designs and core intellectual property with Richardson Electronics’ global field engineering expertise, demand creation model, manufacturing infrastructure, and global supply chain capabilities to support the development, qualification, and production of Nxbeam-based solutions for demanding applications across industrial, medical, defense, semiconductor, energy, and scientific markets. Through the collaboration, Richardson Electronics will provide engineering support and lifecycle management, delivering application-level technical support, improved supply continuity, and reliable, long-term solutions for mission-critical environments.

“Partnering with Richardson Electronics provides us with the operational scale, engineering support, and global footprint needed to better serve our customers,” said David Farkas, CEO, Nxbeam. “This collaboration allows us to focus on innovation while ensuring our solutions can be delivered efficiently and at scale.”

The partnership underscores both companies’ commitment to innovation, quality, and long-term customer support. For more information or to speak with a member of the Richardson Electronics team, please contact us today.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; CT X-ray tubes; and customized display solutions. More than 50% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics, Ltd. common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at rellpower.com | relltubes.com | rellaser.com.

About Nxbeam

Founded in 2018, Nxbeam develops high-performance gallium nitride (GaN) ICs and integrated RF solutions for next-generation wireless communications. Nxbeam’s portfolio includes power amplifier ICs, modules, and transceiver products for satellite and terrestrial communications applications. With deep expertise in millimeter-wave MMIC design and RF systems, Nxbeam delivers solutions engineered for high efficiency, reliability, and performance in demanding environments. Nxbeam products support the rapid evolution of global communications infrastructure.

LaFox, IL | Globe Newswire | February 3, 2026 – Richardson Electronics, Ltd. (NASDAQ: RELL), today announced that Rainer Bornwasser has been appointed Vice President of Global Sales for Canvys – Visual Technology Solutions, a division of Richardson Electronics, effective February 1, 2026. The appointment underscores Richardson Electronics’ commitment to accelerating global growth, expanding strategic OEM partnerships, and strengthening its position in high-value medical and industrial display markets through its Canvys division.

Mr. Bornwasser brings more than 30 years of international sales and leadership experience across the medical technology and industrial display sectors. His career includes senior leadership roles at ADLINK Technology, NDS Surgical Imaging, Planar/DOME Medical, and RadiSys/Texas Microsystems, where he successfully scaled global sales organizations, expanded OEM relationships, and drove sustained revenue growth in customer-specific and regulated display solutions for leading medical device manufacturers.

A Diplom-Ingenieur in Electrical Engineering, Mr. Bornwasser combines deep technical expertise with a strong commercial track record. His background spans complex, long-cycle OEM programs, regulatory-driven markets, and cross-regional team leadership—capabilities that align closely with Canvys’ strategic focus on customized, high-margin display solutions.

“Rainer’s appointment represents an important step in advancing Canvys’ global growth strategy,” said Jens Ruppert, Executive Vice President and General Manager of Canvys. “His proven ability to build scalable sales organizations, deepen strategic customer relationships, and translate technology leadership into profitable growth will be instrumental as we expand our presence with global OEM customers.”

In his new role, Mr. Bornwasser will lead the development and execution of Canvys’ global sales strategy, with a focus on revenue growth, margin expansion, and long-term customer partnerships. He will oversee worldwide sales operations, strengthen engagement with key OEM accounts, and support complex customer programs from concept through series production. Additionally, he will work closely with product management, R&D, and marketing to identify new market opportunities, align innovation with customer demand, and enhance Canvys’ competitive positioning in regulated and high-performance display applications.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components, including green energy solutions; tubes for diagnostic imaging equipment; and customized display solutions.

More than 55% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and per our Supplier Code of Conduct. We serve customers in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics’ common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Canvys – Visual Technology Solutions

Canvys, a Division of Richardson Electronics, Ltd. (NASDAQ: RELL), is a global value-added integrator and manufacturer that specializes in creating comprehensive visual technology solutions for Original Equipment Manufacturers (OEMs). Our collaborative approach allows us to evaluate each customer’s unique needs and craft the right solution using custom engineering, value-added outsourcing, or modified off-the-shelf components. We also provide complete post-sale service and support, including installation support, maintenance, troubleshooting, calibration, and conformance. For more information, visit us at www.canvys.com

Forward-Looking Statements

This release includes certain “forward-looking” statements as defined by the Securities and Exchange Commission. Statements in this press release regarding the Company’s business that are not historical facts represent “forward-looking” statements that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see Item 1A, “Risk Factors” in the Company’s Annual Report on Form 10-K filed on August 4, 2025, and other reports we file with the Securities and Exchange Commission. The Company assumes no responsibility to update the “forward-looking” statements in this release as a result of new information, future events or otherwise.