The U.S. Navy’s RFI to South Korean Shipbuilders: A New Turning Point for U.S.–ROK Shipbuilding Cooperation

The U.S. Department of Defense and the U.S. Navy's decision to issue Requests for Information (RFIs) to South Korea's three leading shipbuilders—HD Hyundai Heavy Industries, Hanwha Ocean, and Samsung Heavy Industries—for combat vessels and naval auxiliary ships marks an important milestone in the evolution of U.S.–ROK shipbuilding cooperation. The move is widely regarded as a highly unusual step, reflecting Washington's willingness to formally assess South Korea's naval shipbuilding capabilities. It also underscores the United States' growing interest in strengthening industrial cooperation with trusted allies as it faces the combined challenges of China's rapidly expanding naval power, declining domestic shipbuilding capacity, workforce shortages, and prolonged construction timelines.

Nevertheless, the RFI should not be interpreted as a direct pathway to shipbuilding contracts. U.S. naval procurement remains subject to complex legal frameworks, defense acquisition regulations, and congressional oversight. In addition, long-standing policies that prioritize domestic production and national security considerations continue to impose significant constraints on overseas construction. As a result, South Korea's world-class shipbuilding expertise alone will not be sufficient to overcome these institutional barriers.

Given these realities, both governments should pursue a pragmatic strategy that combines industrial cooperation with gradual policy development.

First, a "Korean-built blocks, U.S. final assembly" model deserves serious consideration. Under this approach, major hull blocks and structural components would be manufactured in South Korea, where large-scale production capabilities and efficiency are globally recognized, while final assembly and system integration would take place at American shipyards. Such a model would help preserve U.S. industrial capacity and employment while reducing construction timelines and improving overall productivity.

Second, Washington and Seoul should work together to establish a stronger institutional framework for allied participation in naval shipbuilding. While highly sensitive strategic assets such as nuclear-powered submarines and frontline combatants will likely remain domestically produced, there may be room to expand allied participation in selected non-combat auxiliary vessels, including fleet oilers and logistics support ships. As discussions continue within the United States regarding ways to strengthen the nation's shipbuilding industry and expand naval capacity, both governments should seek opportunities to translate these conversations into practical policy initiatives.

Third, expanding South Korean shipbuilders' manufacturing presence in the United States should remain a strategic priority. Hanwha Ocean's acquisition of Philly Shipyard and the growing partnerships between Korean shipbuilders and American naval industry leaders demonstrate that cooperation is evolving beyond exports toward localized production and technological collaboration. Joint ventures, co-production arrangements, technology partnerships, and workforce development programs could enable Korean companies to align with U.S. industrial policy while strengthening their long-term presence in the American defense market.

Finally, these efforts should be supported by a sustainable bilateral investment and financial framework. Coordinated public financing and joint investment mechanisms for shipbuilding and maritime industries could help reduce investment risks associated with expanding production facilities in the United States while providing a stable financial foundation for long-term industrial cooperation.

Ultimately, the RFI represents far more than a routine market assessment. It serves as an important indicator of the future direction of U.S.–ROK shipbuilding cooperation. What the United States increasingly requires is not simply a supplier capable of building high-quality ships, but a trusted industrial partner that can contribute to resilient supply chains, expanded production capacity, and long-term maritime security. For South Korea, this presents an opportunity to move beyond a traditional export-oriented approach and pursue a broader industrial partnership built on co-production, local investment, and supply chain integration. If both countries can navigate existing institutional barriers while maximizing their shared strategic interests, this RFI may become the foundation for a new era of U.S.–ROK shipbuilding cooperation.