Principal Mineral Expands Its Reach with Isola Acquisition and Major Funding

In a strategic move to strengthen its position in the industrial materials sector, Principal Mineral has announced the acquisition of Isola Group, a prominent manufacturer of copper-clad laminates and dielectric prepregs essential for printed circuit boards (PCBs). The deal, finalized on June 16, 2026, will enhance Principal Mineral’s capabilities and broaden its footprint in the North American electronics value chain.

The acquisition comes alongside a significant financial boost for Principal Mineral, as the company has secured approximately $280 million in new funding. This new capital, co-led by Overmatch Ventures and The New Industrial Corporation, with contributions from J2 Ventures, Ensemble VC, and other investors, will be pivotal for long-term strategic growth. It aims to foster the integration of the newly merged entities, improve advanced manufacturing capabilities, and further develop technology essential for critical supply-chain strengths across North America, Europe, and Asia.

Adam Johnson, co-founder and CEO of Principal Mineral, emphasized the mission behind the acquisition, stating, "The addition of Isola advances our mission to build resilient supply chains that power the world's most important technologies." This merger not only solidifies the company’s offerings but also aims to mitigate supply-chain vulnerabilities, ensuring that industries such as aerospace, communications, and energy have reliable access to vital materials.

Together with Camden Copper, the only producer of electrodeposited copper foil in North America, this acquisition promises to enhance the quality and supply reliability for advanced PCB manufacturing. The merger endeavors to create a robust manufacturing framework that combines essential materials like copper foil and copper-clad laminates, strengthening both companies' positions against disruptions in global supply chains.

Following the acquisition, Principal Mineral will employ around 1,300 individuals across 10 facilities globally, focusing on manufacturing, research and development, technical support, and sales operations. Adam Johnson will take up the role as CEO of the merged entity, ensuring continuity and leveraging existing leadership expertise while Sean Mirshafiei, the President of Isola, will manage everyday operations at the Isola facilities.

Transitioning to an advisory role, Travis Kelly, former CEO of Isola, expressed pride in the team’s accomplishments and the position of strength they find themselves in as they embark on this new chapter with Principal Mineral. He voiced confidence that the new ownership would continue to foster the same commitment to employees and customers that Isola has maintained for over a century.

In addition to consolidating its operations, Principal Mineral has vowed to uphold its commitment to responsible business practices and sustainability, particularly regarding its integration efforts and operational continuity. This is demonstrated by their previous successful initiative to acquire Camden Copper, thereby safeguarding local jobs and preserving a critical U.S.-based facility for producing defense-grade copper foil vital for advanced technology systems.

This latest development in Principal Mineral’s strategy signals a strong commitment to invest in the future stability of supply chains in the critical materials sector, as highlighted by COO Wes Spurlock's remarks on the dedication to long-term growth and operational excellence within the industry.

As the landscape of technology continues to evolve rapidly, Principal Mineral's actions reflect not only a focus on immediate growth but also a vision rooted in building a sustainable, resilient future. Such initiatives aim to solidify the company’s role as a trusted partner for advanced technology manufacturers while fostering innovation and resilience in an increasingly competitive market.

To learn more about Principal Mineral and its innovative approaches, visit PrincipalMineral.com.