Business Description

Development of Business The Company, a Delaware corporation, is a successor to American Axle & Manufacturing of Michigan, Inc., a Michigan corporation, pursuant to a migratory merger between these entities in 1999. In 2017, we acquired Metaldyne Performance Group, Inc. (MPG), with MPG becoming a wholly-owned subsidiary of the Company. On February 3, 2026, we completed our previously announced acquisition of Dowlais Group plc (Dowlais) whereby we acquired the entire issued share capital of Dowlais (the Business Combination). Pursuant to the Business Combination, Dowlais shareholders received for each Dowlais ordinary share: 0.0881 shares of new Company common stock and 43 pence per share in cash (approximately $0.59 per share as of the closing date), resulting in the issuance of approximately 117 million shares (and an increase in authorized shares from 150 million to 375 million shares) and a total purchase price of approximately $1.7 billion. Following the close of the transaction, the combined company is headquartered in Detroit, Michigan and led by the Company's Chairman and CEO. Narrative Description of Business Company Overview Dauch Corporation is a premier Driveline and Metal Forming supplier serving the global automotive industry with a powertrain-agnostic product portfolio that supports electric, hybrid, and internal combustion vehicles. The company is headquartered in Detroit, Michigan, with operations that span 24 countries and more than 175 locations. Formed through the acquisition of Dowlais Group plc and its subsidiaries - GKN Automotive and GKN Powder Metallurgy, Dauch unites deep engineering roots with global manufacturing capabilities and an entrepreneurial spirit to move mobility forward. Major Customers We are a primary supplier of driveline components to General Motors Company (GM) for its full-size rear-wheel drive (RWD) light trucks, sport utility vehicles (SUV), and crossover vehicles manufactured in North America, supplying a significant portion of GM's rear axle and four-wheel drive and all-wheel drive (4WD/AWD) axle requirements for these vehicle platforms. We also supply GM with various products from our Metal Forming segment. Sales to GM were approximately 44% of our consolidated net sales in 2025, 42% in 2024, and 39% in 2023. We are also a supplier to Ford Motor Company (Ford) for driveline system products on certain vehicle programs including the Bronco Sport, Maverick, Escape and Lincoln Nautilus, and we also sell various products to Ford from our Metal Forming segment. Sales to Ford were approximately 15% of our consolidated net sales in 2025, 13% in 2024, and 12% in 2023. We also supply driveline system products to Stellantis N.V. (Stellantis) for programs including the heavy-duty Ram full-size pickup truck and its derivatives. In addition, we sell various products to Stellantis from our Metal Forming segment. Sales to Stellantis were approximately 13% of our consolidated net sales in 2025, 13% in 2024, and 16% in 2023. No other customer represented 10% or more of consolidated net sales during these periods. 2 Business Strategy We have aligned our business strategy to build value for our key stakeholders. We accomplish our strategic objectives by capitalizing on our competitive strengths and continuing to diversify our customer, product and geographic sales mix, while providing exceptional value to our customers. We are focused on securing and enhancing our core business of manufacturing products that support internal combustion engine (ICE) vehicle programs by delivering operational excellence and quality products to our customers, while growing our hybrid and electric vehicle business, as end-user acceptance of these vehicle types is expected to grow in the future. Competitive Strengths We achieve our strategic objectives by emphasizing a commitment to: Sustaining our operational excellence and focus on cost management. • We deliver operational excellence by leveraging our global standards, policies and best practices across all disciplines through the use of our operating system, which includes, among other elements, our S 4 (S-to-the-fourth) safety system, Q 4 (Q-to-the-fourth) quality system and E 4 (E-to-the-fourth) energy and environmental sustainability system.…