Knowles Corp

Unless the context otherwise requires, references in this Annual Report on Form 10-K to “Knowles,” the “Company,” “we,” “our,” or “us” refer to Knowles Corporation and its consolidated subsidiaries.

Our Company

We are a leading manufacturer of specialty electronic components. We design parts that perform unique, critical functions for innovative technologies. Through extreme reliability, custom engineering, and scalable manufacturing, we enable businesses to succeed in the most demanding applications across medtech, defense, and industrial markets. Our high-performance capacitors, radio frequency ("RF") and microwave filters, advanced medtech microphones, balanced armature speakers, and miniaturization products enable and enhance the performance of technologies with the power to change, improve, and save lives. Knowles, founded in 1946 and headquartered in Itasca, Illinois, has grown into a global organization with approximately 5,500 employees at facilities located in 11 countries around the world.

Our Strategy

The Company is focused on delivering high value, differentiated solutions to a diverse set of end markets.

In our Precision Devices ("PD") segment, our high-performance capacitors and RF filtering solutions enable some of the most demanding applications in the defense, medtech, and electrification markets. Our capacitor portfolio includes products with highly specialized requirements including high voltage, high temperature, and high reliability. We also deliver RF filtering solutions across a broad range of applications and frequencies primarily serving the defense market. We continue to focus on sales growth and improved margins by expanding our presence in profitable markets through organic initiatives and acquisitions.

In our Medtech & Specialty Audio ("MSA") segment, our primary focus is to deliver high reliability and industry leading balanced armature speakers and microphones to leading hearing health manufacturers and premium audio markets. We work collaboratively with customers to ensure that our solutions meet their size, broad frequency response, and low power or custom acoustic module requirements. Our expertise in the traditional hearing aid market enables us to capitalize on emerging markets like Over the Counter ("OTC") hearing aids. We continue to focus on sales growth and improved margins by leveraging our core strengths in manufacturing and research and development.

Our Business Segments

We have two reportable segments - Precision Devices ("PD") and MedTech & Specialty Audio ("MSA"). These segments were determined in accordance with Financial Accounting Standards Board Accounting Standards Codification 280 - Segment Reporting. The segments are aligned around similar product applications serving our key end markets to enhance focus on end market growth strategies.

Our reportable segments are as follows:

•PD Segment

Our PD segment specializes in the design and delivery of high performance capacitor products and RF solutions primarily serving the defense, medtech, electrification, and industrial markets. PD has sales, support, and engineering facilities in North America, Europe, and Asia as well as manufacturing facilities in North America and Asia.

•MSA Segment

Our MSA segment designs and manufactures balanced armature speakers and microphones used in applications that serve the hearing health and premium audio markets. MSA has sales, support, and engineering facilities in North America, Europe, and Asia, as well as manufacturing facilities in Asia.

We sell our products directly to original equipment manufacturers ("OEMs"), their contract manufacturers and suppliers, and through sales representatives and distributors worldwide.

Market Trends

In our PD segment, we sell high reliability, high voltage and high temperature ceramic, film, mica and electrolytic capacitors, and RF filters across diverse end markets. Portions of this segment face much greater exposure to capital investment cycles and government spending, both direct and indirect, as some of these end markets are largely dependent on project upgrades, expansion, and government contracts. We have been experiencing increased demand for our products driven by the upgrading of large rotary radar and deployment of communication satellites. In addition, demand has increased as a result of the expansion of small implantable devices to monitor and correct a host of chronic health issues.

In our MSA segment, sales within the hearing aid market are largely driven by aging demographics, healthcare spending, increasing affluence in emerging markets, and government subsidies. Our microphones and balanced armature speakers are also utilized to produce high-definition audio for higher performance True Wireless Stereo ("TWS").

Geographic Trends

We strive to maintain our manufacturing facilities in close proximity to our direct customers. In PD, we operate 8 facilities in North America and 1 facility in Asia for the manufacturing of products that support our global customers, as well as their suppliers and contract manufacturers. In MSA, we currently operate 4 facilities in Asia to serve the leading hearing health manufacturers largely based in Europe, China, and North America. Although end-user demand for hearing aids is global and marketing activities occur globally, the majority of our manufacturing is located in the Philippines and Malaysia.

Competitive Landscape

Success in the electronic components industry is primarily driven by innovation and flexibility. We compete across consumer platforms to deliver superior acoustic performance through customized products. Our investments in research and development enable us to capture new design wins across consumer OEMs. Our ability to balance and shift between full and semi-automation is key to our ability to optimize our operations and operating expenses. Additionally, it is important for suppliers to have flexibility and quick time-to-market to meet clients’ needs. Key competitors of our PD segment include: Kyocera AVX, Yageo Corporation's Kemet products, Vishay Intertechnology, and a broad range of specialty companies and brands. Our MSA segment's primary competitor is Sonion.

In the PD segment, the end markets tend to have less pricing pressure. We see a fragmented set of competitors across high end capacitors and filters for a diverse set of end markets including defense, medtech, industrial, and electrification.

In the MSA segment, our leading technology and our investments in research and development enable us to introduce new products focused on high reliability, size, broad frequency response, and low power. Our customers are adopting these high-value microphones and balanced armature speakers to improve the overall audio performance of their devices which in turn improves the end user experience. For products that were introduced in prior years, we strive to offset anticipated price erosion through bill of material cost reductions, productivity improvements, and equipment efficiency.

Customers, Sales, and Distribution

We serve customers in the medtech, defense, electrification, and industrial markets. Our customers include some of the largest OEMs and operators in these markets. In addition, many of our OEM customers outsource to contract manufacturers.

The Company's customers that accounted for 10% or more of total revenues were as follows:

• Less than 10% of total revenues.

We manufacture and develop our products as well as maintain sales and technical customer support offices in North America, Europe, and Asia. We supplement our direct sales force with external sales representatives and distributors. Our global distribution center is located in Penang, Malaysia. Our worldwide sales force provides geographically specific support to our customers and specialized selling of product lines to various customer bases. For further detail and for additional disclosures regarding sales and long-lived assets by geographic location, see Note 17. Segment Information to our Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data."

Raw Materials

We use a wide variety of raw materials, primarily metals, ceramic powder, and semi-processed or finished components. Commodity pricing for various metals, such as palladium, gold, brass, stainless steel, and copper, fluctuates. As a result, our operating results are exposed to such fluctuations. Although some cost increases may be recovered through increased prices to customers, if commodity prices trend upward, we attempt to control such costs through fixed-price contracts with suppliers and various other programs.

We rely on highly specialized suppliers or foundries for critical materials, components, or subassemblies that are used in our products which, in some cases, may be sole sourced from such suppliers or foundries or, such suppliers or foundries may also be a strategic supplier to one of our competitors or a customer. The loss of any single supplier has not had a material impact on operating profits. However, should an event occur which affects the ability or willingness of any supplier or foundry to continue to deliver materials or components to us in a timely manner, we may not be able to identify or qualify an alternative supplier in a timely manner which, in any such period and future periods, could have a material adverse impact on our results of operations. See Item 1A. Risk Factors for additional information regarding risks related to our business.

Research and Development

We concentrate our research and development efforts on the design and development of new products for each of our principal markets. We also fund certain other emerging product and technology opportunities. Our future success is highly dependent upon our ability to develop complex new products, transfer new products to volume production, introduce them into the marketplace in a timely fashion, and have them selected for design into our customers’ products at competitive prices. Our future success may also depend on increasing content in our customers’ products including assisting our customers with integration of our products and software into their new products and providing support from the concept stage through design, launch, and production ramp.

Intellectual Property and Intangible Assets

We rely on patent, copyright, trademark, and trade secret laws to protect our intellectual property, products, and technology. Our U.S. patents expire in calendar years 2025 through 2044. While our patents are an important element of our success, our business as a whole is not dependent on any one patent or group of patents. We do not anticipate any material effect on our business due to any patents expiring in 2025, and we continue to obtain new patents through our ongoing research and development. We have maintained U.S. federal trademark registrations for KNOWLES and Knowles logo designs, along with various other trademarks. These U.S. registrations may be renewed as long as the marks continue to be used in interstate commerce. We have also filed or obtained foreign registration for these marks in other countries or jurisdictions where we conduct, or anticipate conducting, international business. To complement our own research and development efforts, we have also licensed and expect to continue to license, a variety of intellectual property and technologies important to our business from third parties. See Item 1A. Risk Factors for additional information regarding risks related to our business.

Cybersecurity

We regularly perform risk assessments relating to cybersecurity and technology risks. We have a risk-based cybersecurity program, dedicated to protecting our data as well as data belonging to our customers and partners. We utilize a defensive in-depth strategy, with multiple layers of security controls to protect our data and solutions. We mitigate cybersecurity risks by employing extensive measures, including employee training, systems monitoring and testing, and maintenance of protective systems and contingency plans. We continually evaluate ourselves for appropriate business continuity and disaster recovery planning, with test scenarios that include simulations and penetration tests. We also install and regularly update antivirus software on all Company-managed systems to detect and prevent malicious code from impacting our systems.

Seasonality

Our PD segment is not typically subject to seasonality, while our MSA segment tends to have stronger revenues in the fourth quarter of each fiscal year.

Talent, Development, and Culture

As of December 31, 2024, Knowles had approximately 5,500 employees at facilities located in 11 countries around the world. Approximately 68% of our employees are in Asia and approximately 69% of our employees globally identify as female. In the United States, approximately 46% of our employees identify as female and approximately 39% of our employees self-identified as belonging to a racial/ethnic minority group. We believe our success is dependent upon attracting, developing, and retaining high performing employees at all levels of the organization. An important component of achieving this goal is fostering a workplace environment that embraces diversity and inclusion. Our Chief Human Resources Officer is responsible for developing and executing on our human capital strategy, with oversight by the Compensation Committee of our Board of Directors.

We understand that our most important resource is our people. We utilize a variety of recruitment strategies to source top talent who possess the required competencies and experience to execute our strategy. We also invest in the ongoing training and development of our employees by offering tuition and continuous education reimbursement, leveraging an e-learning platform, and implementing formal mentorship programs. Knowles has a formal Succession Planning program with the primary objective of identifying and developing our next generation leaders.

Our Chief Human Resources Officer annually reviews with the Board of Directors our overall talent management strategy and progress. We believe our diverse teams, with their unique ideas, thoughts, and perspectives, form the building blocks for our culture of innovation at Knowles. We strive to create and maintain a workplace environment that embraces the diversity of thoughts, ideas, beliefs, and experiences, brought by our team members. We recognize that nurturing an inclusive workplace enables us to attract, develop, and retain our team members regardless of their race, color, gender identity, language, national origin, religion, orientation, or age. We have commemorated and celebrated numerous diversity, cultural, and historical events throughout the year.

Knowles is also committed to the advancement of women in the workplace and representation in engineering careers. We strive to be an employer of choice for women in engineering. We understand the importance of diverse representation and with it, the need for advancing women in Science, Technology, Engineering, and Mathematics ("STEM") careers. We continue to partner with local organizations to help bridge the gender gap in STEM and shape the next generation of women who aspire to be leaders in the new era of technology. For example, Knowles is the perennial sponsor of the University of Illinois at Chicago's ("UIC") Women in Engineering Summer Program. We have also supported UIC's women engineering students with programs such as academic scholarships, summer internship programs, mentorship programs, and full-time employment opportunities.

We have also worked to increase underrepresented groups in our candidate pool, among our new hires, and in leadership positions. For our 2024 summer internship program, approximately 55% of our corporate intern class consisted of minority and/or women students, and approximately 20% of our corporate tech interns were women. In addition, in 2024 approximately 46% of our new hires in the United States were women.

We are fully committed to supporting our communities. In 2024, we continued our partnership with PEAK (Partnership to Educate and Advance Kids), a Chicago-based nonprofit that is focused on providing academically average students from the city's most challenging and under-served neighborhoods with financial, educational, and personal support through their high school years. Knowles has pledged $10,000 annually to provide a PEAK student the opportunity to pursue a high-quality high school education. In addition, Knowles piloted the PEAK Student Tutoring Program, where our employees assist students with STEM-related subjects.

To be able to attract and retain the best employees, Knowles provides a competitive total rewards program that incorporates our pay for performance philosophy. Our total rewards program includes market-competitive base pay, broad-based short-term and long-term incentive plans, healthcare benefits, retirement plans, paid time off, family leave, and employee assistance programs.

We believe it is important to provide a healthy and safe workplace for our employees. As part of our Environmental, Health, and Safety Policy, we train employees and managers on preventing work-related injuries and illnesses. In addition, our Environmental, Health & Safety ("EHS") Managers across the globe conduct regular reviews of key EHS performance indicators, which include the reporting and correction of any unsafe workplace behaviors, working conditions that could potentially lead to injury, or workplace incidents or illnesses that required first air or other medical treatment.

Additional information regarding Knowles' activities related to its people and sustainability, as well as workforce diversity data, can be found in the Knowles 2024 Corporate Sustainability Report, which is located on our website. The contents of our website and our Corporate Sustainability Report are referenced for general information only and are not incorporated into this Annual Report on Form 10-K.

Other Information

The address of our principal executive offices is 1151 Maplewood Drive, Itasca, Illinois 60143. Our telephone number is 630-250-5100.

Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and any amendments to these reports are available, free of charge, on the "Financial Information - SEC Filings” link on the Investor Relations section of our website, www.knowles.com. We post each of these reports on our website as soon as reasonably practicable after the report is filed with or furnished to the Securities and Exchange Commission ("SEC"). The SEC maintains a website that contains these reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC (www.sec.gov).

Our corporate governance policies, Code of Business Conduct, and Board committee charters and policies are also posted on the Investor Relations section of our website. The information contained in, and that can be accessed through our website is not incorporated into and does not form a part of this Annual Report on Form 10-K.