THE ISSUE
The only facility producing copper foil in North America faced closure in 2024. This would have substantially weakened the U.S. microelectronic supply chain.
In April 2025, Principal Mineral acquired the facility and launched Camden Copper to secure a critical segment of the U.S. electronics and defense supply chain. Today, Camden Copper is a thriving manufacturer and employer in South Carolina.
Electrodeposited Copper Foil
Camden, South Carolina
Operating
Defense, Electronics
Copper foil is a critical component of printed circuit boards, the backbone of all modern technologies. It can be found in products ranging from cell phones and laptops to advanced aerospace and defense systems. The U.S. has largely outsourced the capacity to produce copper foil leaving these critical supply chains vulnerable to disruption.
The only facility producing copper foil in North America faced closure in 2024. This would have substantially weakened the U.S. microelectronic supply chain.
Copper foil is a critical component for the systems powering national defense and electronics.
Camden Copper ensures the U.S. has a strong manufacturing base for critical defense and commercial technologies.
In 2024, the Department of Defense flagged the imminent closure of Denkai America Inc., then owned by a Japanese conglomerate. Within eight weeks, Principal Mineral acquired and relaunched the facility as Camden Copper, preventing a critical supply chain failure and securing economic opportunity and manufacturing jobs in Camden, South Carolina.
Our team's experience across industry and government enabled a streamlined partnership to relaunch operations.
We are investing in strategic upgrades to ensure Camden Copper is positioned to capture growth across the electronics and AI industries.
Camden Copper is an important piece of the Camden, South Carolina community, employing around 60 individuals.
Principal Mineral is working to ensure Camden Copper is positioned to deliver the essential materials for defense and commercial electronics.
Explore how Principal Mineral is securing and scaling critical mineral supply chains across the United States.