President Lee Jae-myung directed the Ministry of National Defense on August 18, 2026 to speed up development of the Jangbogo-N nuclear-powered attack submarine, days after DAPA established dedicated program organizations on August 12 using the KSS-III development team. In parallel, Seoul introduced draft legislation to provide the legal and institutional framework for building indigenous nuclear-powered submarines, including fuel supply and safety oversight. The moves follow DAPA's pledge in its second-half policy report to finalize the Jangbogo-N business plan within 2026, with a first boat targeted for the mid-2030s. The President also reaffirmed plans to complete the wartime operational control transfer during his term.
HD Hyundai Heavy Industries completed the basic design of the HDS-1500MGP, a 1,500-ton class diesel-electric submarine offered to replace the Peruvian Navy's aging German-built boats, and is now aiming to convert it into a detailed-design and construction contract by the end of 2026, with full-scale construction slated to begin in 2027. Shin Hyung-sik, vice president of HD Hyundai Heavy Industries' Naval Ship Division, said that "if the government backs us with close cooperation, I am confident we can absolutely win the order," which would mark Korea's first submarine export in 15 years. The submarine effort builds on a joint development contract signed in December 2024 and a broader April 2024 partnership under which HD Hyundai is already building four surface vessels (worth about 640 billion won) for Peru. The push follows HD Hyundai's unsuccessful bid in Canada's patrol submarine competition, which Germany won. No construction contract has been signed yet — the year-end decision is the watch item.
Canada selected Germany's Thyssenkrupp Marine Systems (TKMS) as preferred supplier for the Canadian Patrol Submarine Project on July 7, ending Hanwha Ocean's bid to build up to 12 diesel-electric submarines under the ~C$60 trillion won ($39B) program. Prime Minister Mark Carney announced the decision ahead of the NATO summit in Ankara. TKMS prevailed by emphasizing its status as a NATO ally already supplying European navies and offering a larger economic package. Hanwha Ocean — which had signed partnerships with 80+ Canadian firms and pledged C$70B in economic benefits and a first-boat delivery by 2032 — was designated the reserve supplier, retained as an alternative if TKMS falters. Hanwha Ocean shares fell more than 23% on the news. The loss is a setback for Korea's NATO-market naval export ambitions, though analysts note the local partnership network and reserve status preserve a future path.
Canada's defense minister confirmed the $42.2 billion Canadian Patrol Submarine Project will go to a single supplier, with a decision expected before PM Carney departs for the NATO summit in Ankara on July 7. Hanwha Ocean faces Germany's TKMS in the final round to build up to 12 diesel-electric submarines. Hanwha has signed partnerships with 80+ Canadian firms, pledging C$70B in economic effects and 25,000 annual jobs. A Korean win would be the largest naval export in K-defense history and could open follow-on bids in Greece and Saudi Arabia.
HD Hyundai Heavy Industries signed a contract with the Peruvian Navy to jointly develop next-generation submarines — the company's first-ever submarine export deal. The basic design phase began in January 2026 for an 11-month period. This is separate from the existing 4-vessel surface combatant project (frigate, patrol vessel, landing craft) worth 640 billion won with Peru.