Overview
<cite index="5-1">South Korean President Lee Jae-myung announced a ₩1,350 trillion (roughly $880 billion) 10-year public-private plan for semiconductors, artificial intelligence (AI) datacenters, and robotics on June 29.</cite> <cite index="2-9">The $880 billion figure dwarfs most individual national efforts, though it is predominantly private capital being coordinated rather than direct government spending.</cite>
The Three Mega Projects
<cite index="11-13,11-14">President Lee branded the effort the "Three Mega Projects," with three pillars: semiconductors, AI datacenters, and physical AI.</cite> <cite index="2-10">The government's role is more orchestrator than funder, creating regulatory frameworks, infrastructure support, and regional development incentives that make it attractive for Samsung and SK to deploy capital domestically rather than abroad.</cite>
Pillar 1: Semiconductor Manufacturing
<cite index="10-1,10-2">Samsung Electronics and SK Hynix said they will invest a combined 800 trillion won ($518 billion) in building a new computer chipmaking hub in the country's southwest region, capitalizing on surging AI-driven demand.</cite> <cite index="9-8,9-9">Samsung and SK Hynix will each construct two memory fabs in the Gwangju and South Jeolla region, for a combined 800 trillion won (~$519 billion), with roughly 81 trillion won going into a high-bandwidth memory (HBM) packaging hub centered on Cheonan and Onyang in South Chungcheong.</cite>
<cite index="11-23,11-24">The government will pull the new fabs forward by up to 12 years, from the late 2040s to the mid-2030s, and will fast-track permits while building out power and water supply.</cite> <cite index="12-3">The government said it would help Samsung and SK Hynix speed up construction of their existing capital-region clusters, with SK Group pulling forward the ramp of its Yongin memory site from 2045 to 2033, as part of a stated goal to double the country's memory output within five years.</cite>
<cite index="14-5">Samsung and SK Hynix together produce about two-thirds of the world's memory chips.</cite> <cite index="12-4">SK Hynix supplies the bulk of the HBM that Nvidia depends on for its AI accelerators — the very strain this expansion is meant to relieve.</cite>
Pillar 2: AI Datacenters
<cite index="11-37,11-38">SK Group, GS Group, and internet leader Naver will invest 550 trillion won in AI datacenters, aiming to build 8.4 gigawatts by 2029 and add 10 more by 2035.</cite> <cite index="4-10">That level of expansion would enable the country to handle large-scale AI workloads domestically rather than relying on overseas providers.</cite>
Pillar 3: Physical AI and Robotics
<cite index="11-39">Science Minister Bae Kyung-hoon called the next three years the "golden time" to lead physical AI, and said Seoul would name it a national strategic industry.</cite>
Geopolitical and Competitive Context
<cite index="7-5">The plan comes as regional rivals like Taiwan, China, and Japan are investing heavily in chip factories and other technologies as the AI boom pushes up demand for semiconductors.</cite> <cite index="12-13">At roughly $520 billion, the semiconductor portion of South Korea's plan dwarfs the United States' CHIPS Act, which provided about $52 billion in direct subsidies, by a factor of ten.</cite>
<cite index="15-19">South Korea's industry ministry stated that the move aims to double the country's memory chip production capacity within five years and to secure its lead in chip production amid competition from China and Taiwan.</cite>
Infrastructure Challenges
<cite index="5-12">Samsung and SK Hynix have pulled fab completion dates forward by as much as 12 years, while the transmission lines and water pipelines that those fabs depend on remain years behind.</cite> <cite index="5-7">A large memory fab consumes upwards of 100,000 tons of water per day, and the Yongin national complex is projected to need around 800,000 tons per day once fully built.</cite> <cite index="5-6">Both Samsung and SK Hynix hold RE100 commitments to reach 100% renewable electricity by 2050, and the ruling Democratic Party's own carbon-neutrality committee has demanded a planned liquefied natural gas (LNG) bridging plan be cancelled.</cite>
Financial Backdrop
<cite index="5-2">Samsung reported preliminary second-quarter 2026 operating profit of ₩89.4 trillion ($58.4 billion) on ₩171 trillion in revenue — a roughly 19-fold year-on-year jump and a record for any tech company.</cite> <cite index="12-11">SK Hynix overtook Samsung in June to become South Korea's most valuable listed company for the first time in more than 25 years, lifted by its commanding lead in HBM, while Samsung's chip division alone booked 53.7 trillion won in first-quarter operating profit as AI-driven memory shortages are expected to strain the companies' capacity past 2027.</cite>