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Ringmetall SE is a German company specializing in industrial packaging solutions, primarily for the chemical, pharmaceutical, and food processing industries. Its core products include high-security closure systems such as drum clamping rings, sealing rings, closures, and levers, as well as inner liners for industrial drums. Founded in 1997 as H.P.I. Holding AG, the company rebranded to Ringmetall AG in 2015 and later to Ringmetall SE in 2021. Headquartered in Munich, Germany, Ringmetall operates 21 production sites across nine countries on three continents. The company holds a significant market position in drum clamping rings, with a global market share exceeding 50 percent.

GE Aerospace is the global leader in designing, manufacturing, and servicing commercial aircraft turbine engines, along with partner Safran in their CFM joint venture. With its massive global installed base of nearly 80,000 commercial and military engines, GE Aerospace earns most of its profits on recurring service revenue of that equipment, which operates for decades. GE Aerospace is the remaining core business of the company formed in 1892 with historical ties to American inventor Thomas Edison; General Electric became a storied conglomerate, with peak revenue of $130 billion in 2000, until it spun off its appliance, finance, healthcare, and wind and power businesses between 2016 and 2024.