Ringmetall buys Rapak to enter North American bag-in-box market
The German industrial packaging group adds two US manufacturing sites through its acquisition of Rapak from TriMas, extending its existing North American liner business.

Germany’s Ringmetall has acquired Rapak from TriMas, giving the industrial packaging group an established manufacturing and customer base in the North American bag-in-box market. The transaction adds operations in Woodridge, Illinois, and Indianapolis, Indiana, expanding a US presence that already includes industrial liners.
Woodward Park Partners, which advised TriMas on the sale, announced the completed acquisition on November 2, 2026. Rapak makes flexible bag-in-box packaging and associated filling systems for liquid food, beverages and industrial applications. By Ringmetall’s own estimate, the deal makes it the world’s fourth-largest bag-in-box manufacturer.
The purchase price was not disclosed. According to Securities.io’s account of Ringmetall’s October 29 announcement, the buyer agreed to acquire 100% of Rapak and planned to fund the transaction with its own funds and available agreed credit lines. Ringmetall reported Rapak’s annual revenue at around $20 million and its workforce at approximately 50.
A new product market, not a first US foothold
Munich-based Ringmetall supplies closure systems and inner liners for industrial drums used in the chemical, pharmaceutical and food-processing industries, alongside packaging solutions for beverages. Its production and sales network spans Europe, China, the United States and South Africa.
Rapak therefore represents entry into a specific North American packaging category rather than Ringmetall’s first move into the region. The acquisition strengthens its Liner business unit, adding bag-in-box systems and filling technology to its existing North American liner portfolio.
The distinction matters strategically. Ringmetall is buying operating facilities and customer relationships rather than building a new business from scratch. Rapak also brings both the flexible packaging and the equipment used to fill it, broadening the group’s offering in liquid packaging beyond its established drum-related products.
The claimed fourth-place global ranking signals greater scale in a specialized market. Neither the transaction announcement nor the supplied reporting provides market-share figures or identifies the three larger manufacturers, however, leaving the precise competitive gap unquantified.
Fourth acquisition of 2026
Rapak continues an acquisition-led expansion strategy. Ringmetall co-chief executive Christoph Petri described it as the group’s fourth acquisition of 2026, following Makplast, New England Plastics’ thermoforming division and Vinbag, according to Securities.io. He linked the deal to a buy-and-build approach supported by rapid integration and the use of existing synergies.
Ringmetall’s pre-closing plan called for Rapak to be integrated into the group shortly after completion. The company identified potential synergies and additional earnings potential from integration, but the supplied reporting gives no quantified savings target or earnings contribution.
That makes integration the next operational step to watch. The strategic rationale rests on combining Rapak’s US production and filling-system capabilities with Ringmetall’s broader packaging operations; the financial benefit beyond Rapak’s existing revenue remains unquantified.
TriMas narrows its portfolio
For TriMas, the sale reverses an investment made in 2020, when it acquired Rapak. The business subsequently operated within TriMas Packaging. Its disposal reduces the seller’s exposure to bag-in-box packaging while placing Rapak with an owner focused on industrial packaging.
“The transaction represents another important step in streamlining our portfolio and increasing our focus on businesses and end markets where we believe we have the greatest opportunity to drive profitable growth and attractive returns,” TriMas president and chief executive Thomas Snyder said in the transaction announcement.
For Ringmetall, the immediate gain is concrete: two established US operating sites, additional liquid-packaging capabilities and a broader North American product range. The deal extends its American manufacturing presence without being a first-time entry into the country.


