South Korean tech giants pledge over $550B to ease RAMageddon

The two largest memory chip companies in the world are planning to invest $518 billion (approximately 800 trillion won) to build four new memory fabrication plants in southwestern South Korea, a region that has historically seen very little semiconductor investment.

This announcement is part of the country's broad national investment plan covering semiconductors, AI data centers, and physical AI, revealed during a presidential briefing on Monday, with Samsung and SK Hynix chairmen in attendance. The plan is divided into three categories. For memory chips, $518 billion will fund four new fabs in the southwest, plus $52 billion for an HBM (high-bandwidth memory) packaging hub in the central region. Another $356 billion (550 trillion won) is allocated for AI data centers to be built by Korean tech and energy giants such as SK, GS, and Naver through 2035.

In total, South Korean tech companies have committed to spending over $900 billion on AI and the chip demand it generates. With this, the nation hopes to elevate itself into an even greater AI power player. Currently, Samsung and SK Hynix (along with U.S. memory maker Micron) are enjoying record demand driven by what's been called RAMageddon—a global memory chip shortage caused by the AI buildout.

"Semiconductors, physical AI, and AI data centers are the triple pillars for South Korea's next industrial era," President Jae Myung Lee said in a televised address on Monday, calling 2026 the year South Korea must establish itself as an "irreplaceable" industrial power.

Lee noted that existing chip facilities in Yongin and Pyeongtaek, the heart of South Korea's semiconductor belt just south of Seoul, have "already reached their limits," and urged companies to accelerate investment in the southwest, hoping to spread AI-related economic benefits beyond the capital. "We must secure overwhelming production capacity in advance," he said.

However, Lee pushed back against media reports that the government had pressured companies into these investments, reportedly stating that the decisions reflected the companies' own judgment. "The government's role is to invest its capabilities so that companies can invest without losses and with better prospects," he was quoted as saying.

Samsung separately issued a press release on Monday, announcing plans to invest 2,655 trillion won (~$1.7 trillion) over the next decade, with 425 trillion won earmarked for the Honam region, the southwestern corner of the Korean peninsula. The company cited expected incentives around power, water, workforce, and living conditions as key factors in selecting Gwangju, roughly 300 kilometers south of Seoul, for a new semiconductor fab, alongside an AI data center in Haenam, at the southern tip of the peninsula.

That sum is not outlandish compared to U.S. tech giants Alphabet, Amazon, Meta, and Microsoft, who will collectively spend $650 billion on AI infrastructure this year alone, according to Reuters.

Meanwhile, SK Group announced a 2,100 trillion won (~$1.4 trillion) medium-to-long-term investment roadmap, with 1,100 trillion won allocated to expanding semiconductor production capacity and 1,000 trillion won for AI data centers nationwide. SK Hynix, the group's core semiconductor affiliate, is central to the chip expansion push, while SK Telecom will lead the buildout of 15 gigawatts of AI data center capacity across the country.

Whether this ambition translates into execution remains uncertain. Deep tech industries like semiconductors and AI don't operate on political or even customer demand timelines. Fabs take years to build, and the risk is that by the time they are ready, the demand that drove them may have subsided, leaving companies with oversupply and crashing prices. For now, the world's AI chip supply chain—especially those hungry for all things memory—will be watching to see if South Korea can pull it off.