Atkore Inc. (ATKR) Business

Item 1. Business

The following discussion of our business contains “forward-looking statements,” as discussed in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” below. Our business, operations and financial position are subject to various risks as set forth in Part I, Item 1A, “Risk Factors” below. The following information should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations, the Financial Statements and Supplementary Data and related notes and the Risk Factors included elsewhere in this Annual Report on Form 10-K.

Company Overview

Atkore Inc. (collectively with all its subsidiaries referred to in this Annual Report on Form 10-K as “Atkore,” the “Company,” “we,” “us,” and “our”) was incorporated in the State of Delaware on November 4, 2010. Atkore is the sole stockholder of Atkore International, Inc. (“AII”).

We are a leading manufacturer of Electrical products primarily for the non-residential construction and renovation markets, as well as residential markets, and Safety & Infrastructure products for the construction and industrial markets. The Electrical segment manufactures high quality products used in the construction of electrical power systems including conduit, cable, and installation accessories. This segment serves contractors in partnership with the electrical wholesale channel. The Safety & Infrastructure segment designs and manufactures solutions including metal framing, mechanical pipe, perimeter security, and cable management for the protection and reliability of critical infrastructure. These solutions are marketed to contractors, original equipment manufacturers (“OEMs”), and end-users. We believe we hold #1 or #2 positions in the United States by net sales in a significant number of our products. The quality of our products, strength of our brands, our scale and national presence provide what we believe to be a unique set of competitive advantages that position us for profitable growth.

Our mission is to be the customer’s first choice by providing unmatched quality, delivery, and value based on sustainable excellence in strategy, people, and processes.

Our Products

Atkore is committed to providing our customers with a safe, sustainable, and innovative portfolio of high quality electrical, mechanical, safety, and infrastructure products and solutions. In total, we serve several end-markets, including new non-residential construction, maintenance, repair and remodel (“MR&R”), residential, OEM, and international markets.

We continuously seek to improve our product offerings and develop innovative new products that meet the changing needs of our customers, which include industry trends toward digital design tools and labor saving solutions. The majority of Atkore products have Building Information Modeling (“BIM”) models available for our customers’ use.

Significant product categories within our Electrical segment include metal electrical conduit and fittings, plastic pipe conduit and fittings, electrical cable and flexible conduit, and international cable management systems, which are critical components of the electrical infrastructure for new construction and MR&R markets. Significant product categories within our Safety & Infrastructure segment include mechanical tube, metal framing & fittings, construction services and perimeter security. Our metal framing products are used in the installation of electrical systems and various support structures, and our mechanical tube products can commonly be found in solar applications.

Atkore continues to invest to add capabilities and capacity to develop innovative products and solutions to make installation faster and easier. Recent examples of our innovation include the expansion of our patented MC Glide Tuff armored cable, which facilitates faster and smoother pull through into both 10AWG and Fire Alarm Cables during installations and the 20’ Kwik-Fit Steel Conduit,

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which is twice the length of traditional conduit, reducing the number of connectors required and time to install.

Customers

We are acutely aware of the importance of our equipment operating reliably, and we strive to deliver the safest, highest quality products. Our sales and marketing processes are primarily focused on serving our customers, including electrical, industrial and specialty distributors, who sell to contractors, and OEMs. We believe customers view Atkore as offering a strong value proposition based on our broad product offering, strong brands, short order cycle times, reliability and consistent product quality. For each of fiscal 2025, 2024 and 2023, approximately 88%, 88%, and 90% respectively, of our net sales were sold to customers located in the United States. Our net sales by geographic area were as follows:

Atkore has a well-established customer base, which includes many of the largest companies in their categories. In fiscal 2025, our top ten customers accounted for approximately 40% of net sales. For fiscal 2025, 2024 and 2023, one customer, Sonepar USA, accounted for more than 10% of sales.

Our customers include global electrical distributors (such as Consolidated Electrical Distributors, Inc. (“CED”), Graybar Electric Company, Rexel, Sonepar S.A. and Wesco International, Inc.), independent electrical distributors including super-regional electrical distributors (such as U.S. Electrical Services Inc., Crescent Electric Supply Co. and United Electric Supply Company, Inc.) and members of buying groups (such as AD Independent Electrical Supply Division (“IESD”) and STAFDA) as well as industrial distributors and big-box retailers. We also support alternative energy OEMs, with many applications used in solar system infrastructure.

Manufacturing

We currently manufacture products in 38 facilities and operate a total footprint of approximately 8.6 million square feet of manufacturing and distribution space in eight countries. Our headquarters are located in Harvey, Illinois, which is also the location of our largest manufacturing facility. Similar to our distribution footprint, our manufacturing footprint is currently concentrated in the United States, with additional facilities in Australia, Belgium, Canada, New Zealand, and the United Kingdom. In fiscal 2025, we announced that we would close three facilities in fiscal 2026.

With respect to our tube and conduit products, we believe we are a technology leader in the in-line galvanizing manufacturing process and have developed specialized equipment that enables us to produce a variety of low-cost high-quality galvanized tube products. For example, our subsidiary, Allied Tube & Conduit Corporation, or “Allied Tube,” developed an in-line galvanizing technique (Flo-Coat) in which zinc is applied in a continuous process when the tube and pipe are formed. The Flo-Coat galvanizing process provides superior zinc coverage of fabricated metal products for rust prevention and lower cost manufacturing than traditional hot-dip galvanizing. Another example is our Cellular Core conduit, which employs a co-extrusion process to create three firmly bonded layers with the inner layer as a cellular core, creating a conduit that weighs less and is more flexible while meeting UL standards.

Suppliers and Raw Materials

We use a variety of raw materials in manufacturing our products. Our primary raw materials are steel, copper, polyvinyl chloride (“PVC”) resin and high density polyethylene (“HDPE”). We believe that sources for these raw materials are well-established, generally available and are in sufficient quantity that we

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may avoid disruption to our business if we encounter an interruption from one of our existing suppliers, though industry supply interruptions have occurred in the past for limited periods of time. Our primary suppliers of steel are Cleveland-Cliffs, Steel Dynamics and Nucor; our primary suppliers of copper are AmRod, SDI LaFarga and Nexans; and our primary suppliers of PVC resin are Westlake, Formosa and Oxy Vinyls; and our primary suppliers of HDPE resin are LyondellBasell and Baystar. We strive to maintain strong relationships with our suppliers.

Responsible sourcing and supply chain management are critical to Atkore’s ability to provide high quality products to our customers. We expect our suppliers to carry out Atkore’s values and commitments by using resources responsibly, reducing the environmental footprint of their operations whenever possible, and upholding fair employment and human rights principles as outlined in our Supplier Integrity and Sustainability Standards.

Distribution

Atkore adds value to the customer experience with a comprehensive portfolio of electrical products and strategically located regional service centers. Additionally, we drive value for our customers through a single order across our broad product portfolio coupled with services like our ReliaRoutes hub-and-spoke fixed trucking lanes and technologies like our mobile app to track orders and schedule pickups.

We primarily sell and distribute our products through electrical, industrial and specialty distributors and OEMs. For many of the more than 12,000 electrical-distributor branches in the United States, our products are must-stock lines that form a staple of their business. We serve a diverse group of end markets, including new construction, MR&R and infrastructure, diversified industrials, alternative power generation, healthcare, data centers and government. End-users, who are typically electrical, industrial and mechanical contractors as well as OEMs, install our products during non-residential, residential and infrastructure construction and renovation projects or in assembly and manufacturing processes.

Distribution-based sales accounted for approximately 83% of our net sales in fiscal 2025. We distribute our products to electrical and industrial distributors from our manufacturing and distribution facilities as well as from over 27 dedicated distribution facilities operated by our agents. Our products are also stocked by electrical and industrial distributors who are located across the United States. Some of our products are purchased by OEMs and used as part of their products and solutions in applications such as utility solar framing, and conveyor systems. OEM sales accounted for approximately 11.5% of our net sales for fiscal 2025.

Our distribution footprint is concentrated in North America (the United States and Canada), with additional facilities in Australia, New Zealand and the United Kingdom.

Seasonality

In a typical year, our operating results are impacted by seasonality. Weather can impact the ability to pursue non-residential construction projects at any time of the year in any geography, but historically, our slowest quarters have been the first and second fiscal quarters of each fiscal year when frozen ground and cold temperatures in many parts of the country can impede the start and pursuit of construction projects. Sales of our products have historically been higher in the third and fourth quarters of each fiscal year due to favorable weather and longer daylight conditions during these periods. Seasonal variations in operating results may also be significantly impacted by inclement weather conditions, such as cold or wet weather, which can delay construction projects.

Marketing

Our marketing efforts are focused on key stakeholder audiences including electrical and industrial distributors, contractors, engineers, government entities, and OEM customers. These combined efforts communicate the value proposition of the overall Atkore brand by bringing together complementary solutions in our portfolio while reinforcing the individual value propositions of our leading sub-brands

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such as Allied Tube & Conduit, AFC Cable Systems, Kaf-Tech, Heritage Plastics, Unistrut, Power-Strut, Cope, US Tray, FRE Composites, Calbond and Calpipe.

Atkore sales are enabled through external commissioned sales agents and internal sales teams that drive customer acquisition and retention. Our comprehensive portfolio of products and solutions is continually enhanced by driving innovation into our markets with new product introductions, such as the digital tools that support project design and selection.

Prompted by evolving customer needs in an increasingly competitive, cost-and-efficiency conscious construction industry, we refreshed our branding strategy in 2020 from a house of brands to a branded house, uniting all brands under one master brand, Atkore, and adopted the “Building Better Together” theme to demonstrate how we work with our customers and our customers’ customers. The effectiveness of our marketing and branding strategy is reflected in consistent marketplace recognition, including multiple tED Best of the Best Awards for Marketing Excellence each year, most recently earning five awards in fiscal 2025.

Competition

Our principal competitors range from national manufacturers to smaller regional manufacturers and differ by each of our product lines. We also face competition from manufacturers in Canada, Mexico and several other international markets, depending on the product. We believe our customers purchase from us because we provide value through the quality of our products, the breadth of our portfolio and the timeliness of our delivery. Competitive pressures are generally in the areas of product offering, product innovation, quality, service and price.

The main competitors in each of these segments are listed below:

Electrical: Zekelman Industries, Inc., Mitsubishi Corporation, Nucor Corporation, Southwire Company, LLC, Dura-Line Corporation, and Prysmian.

Safety & Infrastructure: Zekelman Industries, Inc., Eaton Corporation plc, ABB Ltd., Hubbell Incorporated, nVent Electric plc., and Haydon Corporation.

Management of Information Technology Systems

Historically, information technology has not been a significant differentiator for us in our markets, however, we believe that the ease of doing business with us will become increasingly important to our growth and are making significant investments to improve our operations and provide valuable solutions for our customers. Over the past seven years, Atkore has made significant investments in technology to improve our business and provide value to our customers.

Currently, we operate our business using commercially available hardware and software products with well-developed support services. These commercially available software products include the Company’s general ledger and financial reporting system. The Company’s email service and various other information technology services are on cloud computing platforms hosted by various prominent and reputable technology companies. The Company continues to implement a standardized ERP and has completed the implementation of modules for order management, advanced warehouse management, inventory management, accounts receivable and accounts payable across significant portions of the business.

In today’s business environment, cybersecurity is of paramount importance and Atkore has also invested significantly to strengthen our cybersecurity posture.

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Human Capital Resources

Culture

Atkore believes that a culture of engagement and alignment drives continuous improvement, enhances our customers’ experience, and delivers strong performance.

We aim to foster a workplace where our employees feel aligned with our mission, proud of our culture and engaged in their work. Our annual Employee Engagement and Alignment Survey is one of our primary tools to assess our performance as an employer of choice and to measure employee engagement and satisfaction.

Atkore operates under a set of core values, which are Accountability, Teamwork, Integrity, Respect and Excellence and under the Atkore Business System, which prioritizes Strategy, People and Processes, the fundamentals of how we Build Better Together. Our culture provides employees with opportunities for personal and professional development as well as community engagement, all of which contribute to our Company’s overall success. In addition to many other awards. In 2025, Atkore was recognized as a Great Place to Work-CertifiedTM company for the fifth year in a row.

Employee Base

We believe our relationship with our employees is good. As of September 30, 2025, we employed approximately 5,400 full-time equivalent employees of whom approximately 6% are temporary or contract workers. Our employees are primarily located in the United States, with about 15% employed at our international locations in Australia, Belgium, Canada, China, New Zealand, and the United Kingdom.

As of September 30, 2025, approximately 20% of our domestic and international employees were represented by a union under a collective bargaining agreement. All unions are either located in the United States or Canada with no unions or Worker’s Councils at any of our other locations abroad.

From time to time, our collective bargaining agreements expire and come up for re-negotiations. Our Harvey, Illinois collective bargaining agreement with the United Steelworkers Union was ratified on April 3, 2025.

Safety, Health and Well-Being

At Atkore, nothing is more important than the safety and well-being of our people. We seek to ensure that employees, customers, contractors, and visitors to our facilities go home safely at the end of each day, and we empower everyone to proactively identify and eliminate risks to promote an injury-free and incident-free workplace.

In 2021, we launched our new safety brand “Let’s Make It Home,” a safety program encompassing our commitment to safety and reinforcing the importance of living our values in order to create a workplace where everyone feels respected, appreciated and safe. Developed by and for employees, Let’s Make It Home makes safety at Atkore personal and reminds everyone that safety is integral to every action.

In 2021, we also introduced updates to our Life Saving Rules, which provide additional guidance on the actions every employee must take to ensure safe practices across our operations. All employees are required to certify compliance with the Life Saving Rules annually. Additionally, our employees are required to receive Atkore Kore Training and Safety Alerts, which cover high-hazard occupational safety concerns and compliance with both internal and external safety and environmental permits. Every one of our sites completes a self-assessment and certification of completion.

We believe Atkore’s investments in safety, health and well-being are critical to supporting and protecting our most important asset: our people.

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Inclusive Leadership Mindset

At Atkore, we believe that all employees contribute to our success and that our differences make us better. We believe that supporting an inclusive workplace fosters a culture of openness and innovation. Our commitment is embedded throughout the company with a range of programs where all employees feel they belong and are empowered to do their best work.

Engagement, alignment, and well-being are also an integral part of our culture. We have implemented numerous initiatives to attract, develop, and retain high-performing talent. Atkore’s commitment to our people and culture is reflected in the recognition we have received. We are extremely proud to have earned multiple Top Workplace awards and have been certified as a Great Place to Work since 2021.

Atkore employees also care deeply about the communities where we live and work. In turn, our teams are actively engaged in volunteer and philanthropic initiatives that positively impact those around us. Each of our employees is encouraged to bring their uniqueness to the Company, which unlocks their individual potential and Atkore’s organization potential.

Talent Development and Retention

Our ability to successfully operate, grow and implement key business strategies is dependent upon our ability to attract, develop and retain talented employees at all levels of our organization. As part of our human capital resource objectives, we support our employees by using strategic workforce planning to forecast future needs, building, and leveraging an inclusive leadership mindset, and applying a robust talent management process, including our onboarding and immersion program and our monthly organizational leadership review cadence.

We provide opportunities for advancement through rotational and stretch assignments and best practice leadership roles. In fiscal 2025, approximately 20% of our total positions filled came from internal promotions, highlighting our commitment to developing our employees.

Our successful Atkore Leadership Development Program continues to generate talented leaders. This program provides recent graduates with the opportunity to navigate through a robust two-year rotational program designed to teach and develop key skills while working within various functions of the organization.

The Company rewards employees with competitive compensation and benefits packages, including attractive medical plans, retirement plans, opportunities for annual bonuses and, for eligible employees, long-term incentives and equity-based compensation. The Company believes our compensation program allows us to attract and retain talented employees.

Engagement and Alignment

We have a culture of engagement and alignment and believe fully engaged employees stay focused on being a standout leader, support the decisions of the leadership team and strive for breakthrough results. An aligned employee lives our mission and values, learns our strategic priorities and links their individual goals to those priorities. Our 2025 engagement and alignment survey had an overall participation rate of 81%. In fiscal 2025, 74% of our hourly workforce participated in the survey, compared to 73% of hourly employees in fiscal 2024.

Human Rights

Atkore is committed to supporting human rights and fair labor practices. We will not tolerate human rights abuses of any kind, including human trafficking, child labor or incidents of corruption within our company or supply chain. Employees are encouraged to report any potential violations or concerns, and all reports are promptly and impartially investigated.

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Our Human Rights Policy defines our dedication to protecting human rights and is driven by our core values and is aligned with national and international principles of human rights. In fiscal 2023, we launched Human Trafficking Awareness and Prevention training for all salaried employees.

Atkore’s Supplier Integrity and Sustainability Standards set forth our expectation that suppliers uphold our commitment to human rights. In 2021, we launched our Supplier Business Review Agenda with several of our largest suppliers to ensure our partners could conduct business in alignment with our values.

Intellectual Property

Patents and other proprietary rights can be important to our business. We also rely on trade secrets, manufacturing know-how, continuing technological innovations, and licensing opportunities to maintain and improve our competitive position. We periodically review third-party proprietary rights, including patents and patent applications, in an effort to avoid infringement of third-party proprietary rights, identify licensing opportunities and monitor the intellectual property claims of others.

We own a portfolio of patents and trademarks. Other than licenses to commercially available third-party software, we do not believe that any of our licenses to third-party intellectual property are material to our business taken as a whole. Patents for individual products extend for varying periods according to the date of patent filing or grant and the legal term of patents in the various countries where patent protection is obtained. We rely on both trademark registration and common law protection for trademarks. Trademark rights may potentially extend indefinitely and are dependent upon national laws and use of the trademarks.

While we consider our patents and trademarks to be valuable assets, we do not believe that our competitive position is dependent on patent or trademark protection or that our operations are dependent upon any single patent or group of related patents. We nevertheless face intellectual property-related risks. For more information on these risks, see Item 1A, “Risk Factors—Risks Related to Our Business—We may not be able to adequately protect our intellectual property rights in foreign countries, and we may become involved in intellectual property disputes.”

Regulatory Matters

Our facilities are subject to various federal, state, local and non-U.S. regulations including the protection of human health, safety and the environment. Among other things, these laws govern the use, storage, treatment, transportation, disposal and management of hazardous substances and wastes; regulate emissions or discharges of pollutants or other substances into the air, water, or otherwise into the environment; impose liability for the costs of investigating and remediating, and damages resulting from, present and past releases of hazardous substances and protect the health and safety of our employees.

We have incurred, and expect to continue to incur, capital expenditures in addition to ordinary course costs to comply with applicable current and future environmental, health and safety laws, such as those governing air emissions, wastewater discharges and waste disposal. In addition, government agencies could impose conditions or other restrictions in our environmental permits which increase our costs. These laws are subject to change, which can be frequent and material. More stringent federal, state or local environmental rules or regulations could increase our operating costs and expenses.

The cost of compliance with environmental, health and safety laws and capital expenditures required to meet regulatory requirements is not anticipated to have a material effect on our financial position, results of operations, cash flows or competitive position.

In October 2013, the State of Illinois filed a complaint against our subsidiary Allied Tube, alleging violations of the Illinois Environmental Protection Act, or the “IEPA,” relating to discharges to a storm sewer system that terminates at Allied Tube’s Harvey, Illinois manufacturing facility. The State sought an injunction ordering Allied Tube to take immediate corrective action to abate the alleged violations and civil penalties as permitted by applicable law. Allied Tube has reviewed management practices and

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made improvements to its diesel fuel storage and truck maintenance areas to resolve the State’s claims. We entered into a consent order that required Allied Tube to pay a nominal penalty, install base low-flow oil and water separation equipment and take certain additional remedial actions to resolve the State’s claim. The installation of the low-flow oil and water separation equipment is complete; however, the State is now requiring additional remedial investigation and remediation activities before considering a no further action determination and it has extended the deadline to perform all such activity through December 2025. We do not currently expect that any remaining obligations would have a material effect on our financial position, results of operations or cash flows.

In August 2014, we received from the IEPA the terms of a proposed new stormwater discharge permit for our Harvey, Illinois manufacturing facility. Because the facility did not meet the zinc limit set forth in the proposed permit, the Company commenced negotiations with the IEPA to agree upon mutually acceptable discharge limits. During these negotiations, the facility was operating under an extension of the terms of our existing stormwater discharge permit. In October 2016, we received the final permit. A mutually agreed upon compliance plan was part of the permit. The compliance plan included studies to reduce zinc emitted from galvanizing manufacturing operations, implementation of more rigorous discharge management practices, evaluation of the installation of passive/cost effective stormwater treatment and receiving stream studies to determine if a less stringent permit limit would be as protective of the water system as the October 2016 permit limit. The permit was modified in December 2019 to accommodate trials of a metal coating technology that would nearly eliminate the largest source of zinc emissions from our galvanizing operations. Although the metal coating trials were not successful, we have completed the installation of zinc treatment systems for the storm water discharges, are further reducing the zinc emitted from the galvanizing manufacturing operations and are capturing stormwater for treatment and use in our manufacturing process. A new permit was issued August 5, 2021 that included a less stringent permit limit based on the receiving stream evaluation, which also included a one-year start-up / shake-down period to meet the new zinc limit. We continued to keep the IEPA informed on our progress. The facility achieved intermittent compliance during the one-year start-up / shake-down period and throughout the remainder of 2022, and into 2023. Discussions were held with the IEPA regarding the zinc translator constant and the mixing zone study over the summer. Based on the updated stormwater calculations, the IEPA has agreed to a less-stringent permit limit for zinc (1.84 mg/L vs 1.15 mg/L). Ongoing compliance with the stormwater discharge permit is not expected to have a material effect on our financial position, results of operations or cash flows.

We are continually investigating, remediating or addressing contamination at our current and former facilities. For example, we are currently monitoring and passively remediating groundwater contamination at our Wayne, Michigan facility. Future investigation and remediation activities may be required to address contamination at or migrating from the Wayne, Michigan site as well as addressing vapor intrusion issues at nearby residences. We have maintained good working relationships with the State of Michigan Department of Environment, Great Lakes, Energy, the City of Wayne and the residents surrounding our facility. We hold periodic public meetings to keep the community apprised of the current monitoring data and the remedial efforts taken or planned. We do not expect planned remedial efforts to have a material adverse effect on our financial position, results of operations or cash flows.

Many of our current and former facilities have a history of industrial usage for which additional investigation and remediation obligations could arise in the future and which could materially adversely affect our business, financial position, results of operations or cash flows.

Available Information

We make available free of charge through our website, http://investors.atkore.com/sec-filings, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, proxy statements, other reports filed under the Securities Exchange Act of 1934 (“Exchange Act”), and all amendments to those reports simultaneously or as soon as reasonably practicable after such material is electronically filed with, or furnished to, the SEC. Our reports are also available free of charge on the SEC’s website, www.sec.gov. References to our website in this Annual Report on Form 10-K do not

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constitute an incorporation by reference of any of the information found on our website, and such information is not a part of this or any other report we file with or furnish to the SEC.