Camden Copper Unveiling

April 23, 2025

American Made, American Owned: Revitalizing Domestic Copper Foil Production to Bolster the
Defense Industrial Base and the Camden, South Carolina Community

Camden, South Carolina – Today, a local manufacturing business with deep roots in the Camden
community embarks on a bright future under new, American ownership. The former Denkai America Inc.
manufacturing facility is now Camden Copper, a new business name that honors the people and
community that have produced products critical to the defense industrial base for over 30 years.
Camden Copper is the nation’s sole remaining source of defense-grade electrodeposited (ED) copper foil,
an essential material for the microelectronics industrial base that is used in critical defense applications,
including printed circuit boards (PCBs), advanced radio frequency (RF) systems, and electromagnetic
interference (EMI) shielding. Camden Copper anticipates building upon the legacy of high-quality
products and producing the copper foil the nation needs – American made, American owned.

In November 2024, the Japan-based parent company of Denkai America Inc. (DAI), announced its
commencement of bankruptcy proceedings and intentions to dissolve and liquidate DAI and its Camden
manufacturing facility. The announcement prompted significant concerns not only from the local
community but from the Department of Defense (DoD) and the defense industrial base (DIB), which rely
upon its copper foil products.

Principal Mineral, a company focused on developing projects to address strategic gaps in DIB supply
chains, saw the strategic imperative to save and revitalize domestic ED copper foil production in Camden.
In April 2025, Principal Mineral acquired the assets of DAI and has established a new business, Camden
Copper, to continue, modernize and expand domestic ED copper foil production to meet DoD and DIB
needs. The new company name honors the city and community responsible for keeping copper foil
production in the United States, now and into the future.

Camden Copper will retain the employees and invest into the operations at its Camden facility while
working to ensure that the operations remain an economic pillar in the local community, providing
high-paying manufacturing jobs and supporting local businesses. Beginning on its first day of operations,
Camden Copper employs nearly 50 people with an average salary which is 41 percent higher than the
average manufacturing wage in Kershaw County and the company has meaningful plans for growth that
will drive additional direct, indirect, and induced economic impact for the local community.
It is an honor to be a part of the Camden community and carry its name, as Camden Copper. The
company looks forward to continuing to serve the nation and its defense needs for copper foil products.
American made, American owned!

About Principal Mineral
Principal Mineral develops and scales domestic production of strategic metals, high-performance alloys,
and advanced materials, reducing foreign dependencies and single points of failure in our most critical
supply chains.
Email: media@principalmineral.com