🧠 Food for thought

Implications, context, and why it matters.

The AI memory boom is concentrated in a small group

• High Bandwidth Memory (HBM) chips for AI drive much of the growth. Samsung Electronics and SK hynix together control about 90% of the global HBM market, according to Mordor Intelligence 1.
• SK hynix has locked up about two-thirds of Nvidia’s initial orders for next-generation HBM4, based on industry sources cited by Korea Economic Daily Global 2.
• Prices have surged. TrendForce data cited by Reuters puts one DDR5 DRAM (Double Data Rate 5 Dynamic Random-Access Memory) chip up 314% in the fourth quarter (October-December) from a year earlier 3.
• South Korea’s government has raised concerns about “K polarization.” It plans a 50 trillion won financial package for high-tech strategic industries, including semiconductors, bio and batteries, as part of a wider push to ease polarization 4.

This export concentration can shake the wider economy

• One analysis says South Korea is starting to resemble a resource exporter, with the currency and household incomes moving with boom-and-bust cycles in a single high-tech industry 5.
• The same pattern creates tension inside Samsung. Reuters writes that higher memory prices lift its semiconductor division while squeezing margins in its smartphone business 3.
• The chip upcycle can obscure weakness elsewhere. Exports to the U.S. have fallen amid trade uncertainty, while reliance on a few large exporters keeps rising 6.
• The boom also brings geopolitical pressure. Digitimes writes that memory chipmakers could face 100% U.S. tariffs unless they expand production in the U.S. 7.