Hanwha Group claims that its Philadelphia plant could support construction of advanced submarines, such as the Virginia-class, if the U.S. government approves and formalizes the plan.

New photos show North Korea's apparent progress in the development of a nuclear-powered submarine as Kim Jong Un condemns South Korea's efforts.

The debut followed the North’s first test of a new surface-to-air missile and the arrival of a U.S. nuclear-powered attack sub for a port call in South Korea.

Kim Jong Un unveils a new 8,700-ton nuclear-powered submarine, escalating tensions in the Pacific. Learn how this stealth technology changes the global security balance.

Kiel, Germany-headquartered TKMS, which is one of the two finalists to build the Royal Canadian Navy’s planned Patrol Submarine Project (CPSP) has signed a strategic teaming agreement with Trois-Rivières, Quebec-based high-precision machining and fabrication specialist Marmen to collaborate on the production of major submarine components.

North Korea on Thursday released new images of what it claims is its first nuclear-powered submarine, a massive vessel equal in size to some of the United States Navy’s attack subs.

SEOUL, Dec 25 (Reuters) - Hanwha's ‌Philly ​Shipyard has the capability ‌of building a nuclear-powered submarine for the ​U.S. Navy, said Alex Wong, global chief strategy officer at Hanwha ‍Group, according to a statement ​from the South Korean company on Thursday.

Palantir Technologies (PLTR) recently landed one of its most significant defense contracts yet as the U.S. Navy tapped the software firm to overhaul submarine production through artificial intelligence.