JHX vs MGA Comparison

James Hardie is a manufacturer of fiber cement-based building products, selling primarily to the residential construction industry. North America is the primary geography, generating about 80% of group earnings. Here, it is the largest manufacturer of fiber cement, which is mainly used for exterior siding on houses. Following the Azek acquisition in 2025, it also produces wooden composite decking materials, siding trims, and accessories for outdoor areas including stair and deck railing. Businesses in Australia, New Zealand, and Europe, make up the rest of earnings.

Magna International prides itself on an entrepreneurial culture and a corporate constitution that outlines the distribution of profits to various stakeholders. This automotive supplier's product groups include exteriors, interiors, seating, roof systems, body and chassis, powertrain, vision and electronic systems, closure systems, electric vehicle systems, tooling and engineering, and contract vehicle assembly. In 2025, 48.6% of Magna's USD 42 billion of revenue came from North America, while Europe accounted for approximately 38% and Asia the remainder. The firm's top six customers constituted 75.9% of revenue, with the top three being GM, Mercedes, and Ford. GM was the largest contributor at 15.6%. Magna was founded in 1957, has about 144,000 employees, and is based in Aurora, Ontario.