BEL FUSE INC /NJ (BELFB) Business

Item 1.  Business

Bel Fuse Inc. designs, manufactures and markets a broad array of products that power, protect and connect electronic circuits. These products are primarily used in the defense, commercial aerospace, networking, telecommunications, computing, general industrial, high-speed data transmission, transportation and eMobility industries. Bel's portfolio of products also finds application in the automotive, medical, broadcasting and consumer electronics markets. Bel's product groups include Power Solutions and Protection (front-end, board-mount, industrial and transportation power products, module products and circuit protection), Connectivity Solutions (expanded beam fiber optic, copper-based, RF and RJ connectors and cable assemblies), and Magnetic Solutions (integrated connector modules, power transformers, power inductors and discrete components).

With more than 75 years in operation, Bel has reliably demonstrated the ability to participate in a variety of product areas across a global platform. The Company has a strong track record of technical innovation working with the engineering teams of market leaders. Bel has proven itself a valuable supplier to world-class companies by developing new products with cost effective solutions.

The Company was incorporated in 1949 and is organized under New Jersey law. Bel's principal executive offices are located at 300 Executive Drive, Suite 300, West Orange, New Jersey 07052, and Bel's telephone number is (201) 432-0463. The Company operates facilities in North America, Europe and the Middle East (referred to as the "EMEA" region throughout), and Asia and trades on the NASDAQ Global Select Market (ticker symbols BELFA and BELFB). For information regarding Bel's operating segments, see Note 14, "Segments", of the notes to our consolidated financial statements. Hereinafter, all references to "Note" will refer to the notes to our consolidated financial statements included in Part II, Item 8. "Financial Statements and Supplementary Data" of this Annual Report on Form 10-K.

Acquisitions have played a critical role in the growth of Bel and the expansion of both our product portfolio and our customer base and continue to be an important element in our growth strategy. We frequently evaluate possible acquisition candidates that would expand our product and technology offerings to our customers and/or optimize our overall cost structure.

On November 14, 2024, the Company closed on the acquisition of its majority 80% stake in Enercon Technologies, Ltd. (“Enercon”) pursuant to the terms of the Share Purchase Agreement, dated as of September 19, 2024 (the “Purchase Agreement”), by and among the Company, Enercon, and FF3 Holdings, L.P., for itself and as Sellers’ Representative (“FF3”), and each of the other seller parties signatory thereto (collectively with FF3, the “Sellers”). Enercon is a leading supplier of highly customized power conversion and networking solutions to aerospace and defense markets globally, providing robust and reliable solutions across air, land and sea applications. Enercon is based in Netanya, Israel with additional facilities in New Hampshire, U.S. and Haryana, India. The Enercon business is part of Bel’s Power Solutions and Protection group. At the closing, Bel paid an aggregate of approximately $325.6 million in cash in respect of the cash purchase price (after giving effect to estimated adjustments taken at closing including for Enercon’s cash, indebtedness, net working capital and unpaid transaction costs, and subject to further adjustment post-closing). Bel funded the closing of the transaction through cash on hand of approximately $85.6 million and with approximately $240 million provided through incremental borrowings under the Company’s revolving credit facility. Pursuant to the transaction documents, Bel may acquire the remaining 20% stake in Enercon and has the current intention to so purchase such remaining interest by early 2027 in accordance with the terms and subject to the conditions of a shareholders’ agreement, which was also entered into on November 14, 2024. The preceding statement regarding Bel’s intention to purchase the remaining interest in Enercon represents a Forward-Looking Statement. See "Cautionary Notice Regarding Forward-Looking Information." See Note 3, “Acquisition” for further details about the Enercon acquisition.

On February 1, 2023, Bel closed on an €8.0 million (approximately $8.8 million as of the February 2023 closing) noncontrolling (one-third) investment in innolectric AG ("innolectric"), a Germany-based business in the field of on-board charging for eMobility applications. This passive investment was intended to create a strategic alliance that is focused on Electric Vehicles (“EV”) on-board power electronics, and in particular next generation fast-charging technology. The innolectric investment has been part of Bel's Power Solutions and Protection group. See Note 2, “Investment and Impairment in Innolectric” for further information on the current status of the Company’s investment in innolectric.

On March 31, 2021, the Company completed the acquisition of EOS Power ("EOS") through a stock purchase agreement for $7.8 million, net of cash acquired, including a working capital adjustment. EOS, located in Mumbai, India, enhanced Bel's position related to certain industrial and medical markets historically served by EOS, with a strong line of high-power density and low-profile products with high convection ratings. In addition to new products and customers acquired, this acquisition diversified Bel's manufacturing footprint in Asia. The EOS business is part of Bel's Power Solutions and Protection group.

On January 8, 2021, the Company acquired rms Connectors, Inc. (“rms Connectors” or "rms"), from rms Company Inc., a division of Cretex Companies, Inc., for $9.0 million in cash, including a working capital adjustment. rms Connectors is a highly regarded connector manufacturer with over 30 years of experience producing harsh environment circular connectors used in a variety of military and aerospace applications. This acquisition complemented Bel's existing military and aerospace product portfolio and enabled us to expand key customer relationships within these end markets and leverage the combined manufacturing resources to improve our operational efficiency. Originally based in Coon Rapids, Minnesota, the rms Connectors business was relocated into Bel's existing facilities during 2021 and is part of Bel's Connectivity Solutions group.

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Products

The Company primarily generates revenue through the sale of its products. Bel offers a broad array of product offerings, which are grouped as follows: Power Solutions & Protection (53% of net sales in 2025), Connectivity Solutions (34% of net sales in 2025) and Magnetic Solutions (13% of net sales in 2025). While there are key customers and end markets within each of the three product groups, there were no direct customers who accounted for more than 10% of our consolidated net sales in 2025. Our diverse product mix and customer base minimizes our dependence on any one customer or end market.

Power Solutions and Protection

Bel's power conversion products include internal and external AC/DC power supplies, DC/DC converters and DC/AC inverters. Bel circuit protection products include a board offering of surface mount and through-hole level fuses as well as Polymeric PTC (Positive Temperature Coefficient) devices. The Power and Protection products are primarily used in Aerospace, Defense, Servers, Storage, Networking, Transportation, Harsh Environment, Consumer, Medical and Industrial markets.

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Connectivity Solutions

Bel offers a comprehensive line of high speed and harsh environment copper and optical fiber connectors and integrated assemblies, which provide connectivity for a wide range of applications across multiple industries including commercial aerospace, military communications, defense, network infrastructure, structured building cabling and several industrial applications.

Magnetic Solutions

Bel's Magnetics offers industry-leading products. The Company's ICM products integrate RJ45 connectors with discrete magnetic components to provide better performance and a more robust device that allows customers to substantially reduce board space and optimize performance. Power Transformers include standard and custom designs for use in a wide array of applications, including industrial instrumentation, alarm and security systems, motion control, elevators, and medical products.

Sales and Marketing

We sell our products to customers throughout North America, Europe and Asia. Sales are made through one of three channels: strategic account managers or in some cases, regional sales managers, working directly with our customers; regional sales managers working with independent sales representative organizations; or authorized distributors. Bel's strategic account managers are assigned to handle major accounts requiring global coordination.

Independent sales representatives and authorized distributors are overseen by the Company's sales management personnel located throughout the world. As of December 31, 2025, we had a sales and support staff of approximately 212 people that supported a network of sales representative organizations and non-exclusive distributors. We have written agreements with all our sales representative organizations and most of our major distributors. These written agreements, terminable on short notice by either party, are standard in the industry.

Sales support functions have also been established and located in our international facilities to provide timely, efficient support for customers. This supplemental level of service, in addition to first-line sales support, enables us to be more responsive to customers' needs on a global level. Our marketing capabilities include product management which drives new product development, application engineering for technical support and marketing communications.

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Market Factors

Competition

We operate in a variety of markets, all of which are highly competitive. There are numerous independent companies and divisions of major companies that manufacture products that are competitive with one or more of our products.

Our ability to compete is dependent upon several factors including product performance, quality, reliability, depth of product line, customer service, technological innovation, design, delivery time and price. Overall financial stability and global presence also give us a favorable position in relation to some of our competitors. Management intends to maintain a strong competitive posture in the markets we serve by continued expansion of our product lines and ongoing investment in research, development and manufacturing resources. The preceding sentence represents a Forward-Looking Statement. See "Cautionary Notice Regarding Forward-Looking Information."

Trends in Market Demand

Product orders, or bookings, received during 2025 amounted to $732.9 million, a 75.8% increase from 2024. By product group, orders received for our Power Solutions and Protection products amounted to $379.9 million in 2025, a 172% increase from 2024, largely due to increased demand from our networking and aerospace and defense customers. Orders received for our Connectivity Solutions products were $253.8 million in 2025, 19.7% higher than in 2024, primarily as a result of increased demand from our commercial aerospace and defense customers. Bookings for our Magnetic Solutions products increased by 52.8% from 2024 to $99.3 million in 2025, largely due to increased demand from our networking customers.

Backlog of Orders

We typically manufacture products against firm orders and projected usage by customers. Cancellation and return arrangements are either negotiated by us on a transactional basis or contractually determined. We estimate the value of the backlog of orders as of January 31, 2026 to be approximately $452.2 million as compared with a backlog of $388.1 million as of January 31, 2025. Management estimates that approximately 80%-85% of the Company's backlog as of January 31, 2026 will be shipped by December 31, 2026. Factors that could cause the Company to fail to ship all such orders by year-end include unanticipated supply difficulties, changes in customer demand and new customer designs. Due to these factors, backlog may not be a reliable indicator of the timing of future sales. The preceding statements regarding the Company’s backlog, including but not limited to estimates and anticipated timing of shipping, represent Forward-Looking Statements. See "Cautionary Notice Regarding Forward-Looking Information."

Research and Development ("R&D")

Our engineering groups are strategically located around the world to facilitate communication with and access to customers' engineering personnel. This collaborative approach enables partnerships with customers for technical development efforts. The global capabilities and collaborative approach allow Bel to develop leading edge technological products that support highly complex and evolving markets such as defense, commercial aerospace, eMobility, cloud computing, and others. On occasion, we execute non-disclosure agreements with customers to help develop proprietary, next generation products intended for rapid deployment. We also sponsor membership in technical organizations that allow our engineers to participate in developing standards for emerging technologies. It is management's opinion that this participation is critical in establishing credibility and a reputable level of expertise in the marketplace, as well as positioning the Company as an industry leader in new product development.

R&D costs are expensed as incurred. Generally, R&D is performed internally for the benefit of the Company. R&D costs include salaries, building maintenance and utilities, rents, materials, administrative costs and miscellaneous other items.

Resources

Raw Materials and Sourcing

We have multiple suppliers for most of the raw materials that we purchase. Where possible, we have contractual agreements with suppliers to assure a continuing supply of critical components.

With respect to those items which are purchased from single sources, we believe that comparable items would be available in the event that there was a termination of our existing business relationship with any such supplier. While such a termination could produce a disruption in production, we believe that the termination of business with any one of our suppliers would not have a material adverse effect on our long-term operations. Actual experience could differ materially from this belief as a result of a number of factors, including the time required to locate an alternative supplier, and the nature of the demand for our products. Sharp increases in metal commodity prices, particularly Gold (Au), Silver (Ag) and Copper (Cu) over the past few years continue to impact cost structures and supplier pricing. Even though we may have more than one supplier for certain materials, it is possible that these materials may not be available to us in sufficient quantities or at the times desired by us. In the event that economic conditions have a negative impact on the financial condition of our suppliers, this may impact the availability and cost of our raw materials.

Intellectual Property

We have acquired or been granted a number of patents in the U.S., Europe and Asia and have additional patent applications pending relating to our products. Our U.S. design patents have a life of 15 years and our U.S. utility patents have a life of 20 years from filing of patent applications. Our existing patents expire on various dates through July 2041. It is management's opinion that the successful continuation and operation of our business does not depend upon the ownership of patents or the granting of pending patent applications, but upon the innovative skills, technical competence and marketing and managerial abilities of our personnel.

We utilize registered trademarks in the U.S., Europe and Asia to identify various products that we manufacture. The trademarks survive as long as they are in use and the registrations of these trademarks are renewed.

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Government Contracts

We must comply with and are affected by laws and regulations relating to the award, administration, and performance of U.S. Government contracts. Government contract laws and regulations affect how we do business with our customers and, in some instances, impose added costs on our business. A violation of specific laws and regulations could result in the imposition of fines and penalties or the termination of our contracts or debarment from bidding on contracts. These fines and penalties could be imposed for failing to follow procurement integrity and bidding rules, employing improper billing practices or otherwise failing to follow cost accounting standards, receiving or paying kickbacks, or filing false claims. We have been, and expect to continue to be, subjected to audits and investigations by government agencies. The failure to comply with the terms of our government contracts could harm our business reputation. It could also result in our progress payments being withheld.

In some instances, these laws and regulations impose terms or rights that are more favorable to the government than those typically available to commercial parties in negotiated transactions. For example, the U.S. Government may terminate any of our government contracts and, in general, subcontracts, at its convenience as well as for default based on performance. Upon termination for convenience of a fixed-price type contract, we normally are entitled to receive the purchase price for delivered items, reimbursement for allowable costs for work-in-process, and an allowance for profit on work actually completed on the contract or adjustment for loss if completion of performance would have resulted in a loss. Upon termination for convenience of a Federal Government cost reimbursement contract, we normally are entitled to reimbursement of allowable costs plus a portion of the fee. Such allowable costs would normally include our cost to terminate agreements with our suppliers and subcontractors. The amount of the fee recovered, if any, is related to the portion of the work accomplished prior to termination and is determined by negotiation.

Seasonality

In the PRC, the availability of labor is cyclical and is significantly affected by the migration of workers in relation to the annual Lunar New Year holiday. Each year following the Lunar New Year holiday, we must assess the worker return rate and whether it is adequate to meet the needs of current demand from our customers. Accordingly, we must continually recruit and train new workers to replace those lost to attrition each year and to address peaks in demand that may occur from time to time. This temporary setback in production has historically resulted in our first quarter sales being the lowest sales quarter of the year. Further, recruiting and training efforts and related inefficiencies, as well as overtime required to meet demand, can add volatility to the costs incurred by the Company for labor in the PRC, primarily during the first quarter of the year.

Government Regulations

The Company is subject to various government regulations in the United States as well as various jurisdictions where it operates. These regulations cover several diverse areas including trade compliance, anti-bribery, anti-corruption, money laundering, and data and privacy protection. Regulatory or government authorities where the Company operates may have enforcement powers that can subject the company to legal penalties or other measures and can impose changes or conditions in the way it conducts business.

Human Capital Resources, Strategy and Management

At Bel, our values guide everything we do. We are committed to the highest standards of ethical and legal conduct and have created an environment where open and honest communication is the expectation, not the exception. Failing to do so puts Bel’s name, reputation for integrity and business at risk. We hold all employees of Bel (our associates) to this standard and offer the same in return. Our code of ethics was created to ensure that our associates, officers, directors, partners, contractors, and suppliers follow our commitment to customer satisfaction in accordance with ethical and legal standards, guided by the basic, unchanging principle of integrity.

Our Human Capital Strategy is built around four areas:

Extraordinary Performance

Our associates are a critical driver of Bel’s global business results. On December 31, 2025, Bel employed approximately 4,964 associates, almost all of which are full-time, across 15 countries, with 32% located within North America. Outside of the United States, our largest employee populations were located within the PRC, Mexico, Slovakia, the Dominican Republic, Israel, India and the United Kingdom. We regularly monitor various key performance indicators around the key human capital priorities of attracting, retaining, and engaging our global talent. In addition, we enable the execution of our strategic priorities by providing all associates with access to training and development opportunities to improve critical skill sets.

Great Associates

Bel is committed to fostering an inclusive environment that respects and encourages individual differences, diversity of thought, and talent. We strive to create a workplace where associates feel that their contributions are welcomed and valued, allowing them to fully utilize their talents while achieving personal satisfaction in their respective roles within Bel.

Across the organization, we invest in our people to learn in a variety of ways - on the job, in the classroom, through self-directed learning, and through leadership programs. We have expanded our learning management system to make new content and training available to our associates. The Company has advanced its leadership development programs and continues to enhance internship and apprenticeship programs to develop new talent.

Health and Safety

Bel offers a variety of programs globally to protect the health and safety of our associates. While we maintain targets for year-over-year reduction of the total recordable incident rate and serious injuries, our goal is always zero.

Culture

In an increasingly competitive global marketplace, Bel succeeds when we attract and retain the best talent in the communities in which we operate, without regard to race, sex, religion, national origin, disability status, veteran status, or any other protected category. We support this commitment by participating in networking and community events and actively recruiting a broad group of qualified candidates.

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As a global leader in delivering reliable solutions, Bel has signed a Statement of Support Program declaration to show support for National Guard and Reserve member associates coordinated by the Department of Defense's Employer Support of the Guard and Reserve (ESGR) program. The intent of the program is to increase employer support by encouraging employers to act as advocates for associate participation in the military.

The global human resources team members are strategically placed, primarily in manufacturing facilities, to provide support to all our associates. The mission of human resources is to attract, retain and engage the best people. We create a positive work environment where associates can make a difference.

As a company that has been in business for over 75 years, Bel understands the importance of trust, integrity and accountability of all levels of the organization. Our policies, practices and priorities are continually reviewed to align with the best interests of our associates, shareholders and other stakeholders.

Environmental, Social and Governance (“ESG”) Matters

Bel is committed to creating a better tomorrow by understanding how our actions impact the world around us. We aim to accomplish this by making tangible steps, big and small, to invest in our communities, to seek to minimize environmental impact and to promote alignment of interest among stakeholders. As an organization that thrives on learning and continuous improvement, Bel welcomes and embraces change. Over the last few years, we have worked to drive continuous improvements in these areas. Oversight of Bel’s compliance with government-mandated ESG disclosures and reporting requirements and other internal initiatives starts at the Board level, through its Nominating and ESG Committee. Bel also has an internal ESG Committee whose purpose is to support the Company’s ongoing commitment to ESG matters including environmental stewardship, health and safety, corporate social responsibility, corporate governance, sustainability, and other related issues of significance to the Company. Bel’s internal ESG Committee provides updates to either the Nominating and ESG Committee or to the full Board on a quarterly basis.

Environmental

At Bel, we understand the impact of climate change upon so many aspects of our lives and our future, and we are committed to reducing environmental impact for a more sustainable tomorrow. We consistently look for alternatives and approaches to consider in Bel’s business and strategies at multiple levels, from improving the efficiency ratings of our products and factories to better managing our consumption habits of electricity and water.

Bel has measured the impact of its operations on the environment and has utilized these measurements to establish reduction goals and related initiatives throughout the global organization. Today we have 15 manufacturing facilities of various sizes and five of them are ISO 14001 certified and represent 63% of our manufacturing footprint. These five sites have been measuring their consumption levels of natural gas, electricity and water and have targets in place for reducing consumption and waste and improving recycling efforts. For the rest of our manufacturing sites, we intend to follow an approach comparable to the template laid out with these five as we begin the process of better understanding our impact.

Social

Associates are the cornerstone of our business and key to our success. At Bel, we believe in the need for diversity and inclusion that reflects the communities in which we work and live. Associates are encouraged to bring with them their unique perspectives, opinions and experiences as they work for the betterment of Bel, its customers and the locations in which we operate. Bel recognizes its role in the global community and giving back is a priority. From coaching their local sports team to raising funds for local charities of choice, Bel supports and encourages our associates’ participation in these types of activities.

2025 Charitable Contribution Program:

Bel maintains a Company-wide Charitable Contribution Program to ensure consistency and drive our corporate values across the organization. The social program is also in alignment with our Core Value of Community Engagement and directly reflects the ambitions of our ESG initiative to support the global communities within which we operate. In 2025, the program resulted in contributions of more than $131,000 to 54 local charities across 11 countries. There was a matching program for the organizations selected and associates who donated. In addition, associates volunteered 7,900 hours to support their local communities, an increase from the 6,007 volunteer hours in 2024.

Governance

As a company that has been in business for more than 75 years, Bel understands the importance of trust, integrity and accountability at all levels of the organization. Recent additions to our Board and executive management team have brought greater diversity and new perspectives to Bel. We intend that our policies, practices and priorities will be periodically and continually reviewed as appropriate to better align with the best interests of our shareholders, associates and other stakeholders.

In addition to the Board-level ESG oversight, the Company adheres to Bel’s Corporate Governance Guidelines which are available at https://ir.belfuse.com/corporate-governance. These guidelines, which are designed to enhance the Company’s corporate governance, serve as a framework within which the Board will conduct its business, subject to applicable laws, regulations, listing requirements, and the Company’s organizational documents and Board committee charters.

The foregoing discussion of ESG matters contains Forward-Looking Statements. See "Cautionary Notice Regarding Forward-Looking Information."

Available Information

We maintain a website at www.belfuse.com where we make available free of charge the proxy statements, press releases, registration statements and reports on Forms 3, 4, 5, 8-K, 10-K and 10-Q, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act that we (and in the case of Section 16 reports, our insiders) file with the SEC. These forms are made available as soon as reasonably practicable after such material is electronically filed with or furnished to the SEC. Press releases are also issued via electronic transmission to provide access to our financial and product news, and we provide notification of and access to voice and internet broadcasts of our quarterly and annual results. Our website also includes investor presentations and corporate governance materials. The information contained on our website is not incorporated by reference into this Annual Report on Form 10-K or in any other report or document we file with the SEC.