A lawsuit has been filed alleging Samsung Electronics, SK Hynix and Micron intentionally reduced supply of consumer memory to push up RAM prices.

According to IT outlet TechRadar on June 30, the suit claims the three memory makers induced shortages and price increases by shifting DRAM production capacity from mainstream products such as DDR3 and DDR4 to high-bandwidth memory (HBM) for artificial intelligence data centres.

The issue is not the production shift itself but whether the three companies coordinated it with one another. Companies moving production weight to more profitable products is a routine business decision. The lawsuit, however, claims Samsung Electronics, SK Hynix and Micron did not respond to market conditions independently, but acted together to restrict supply. If proven, the claim could lead to findings of illegal conduct such as price fixing.

According to the complaint, the three companies were cited for reducing production capacity for DDR3 and DDR4 used in phones, PCs and tablets, while increasing the share of HBM. HBM is used in AI data centres and is sold at higher prices than conventional DRAM. The plaintiffs argue that shrinking consumer-memory supply can increase upward pressure on prices.

Market power is also cited as a key backdrop. Based on Counterpoint Research figures, the three companies were presented as holding up to 89 percent of the DRAM market and 100 percent of the HBM market. If supply adjustments were in fact coordinated, the structure would make the market impact inevitably large. Samsung Electronics and SK Hynix also have a record of admitting guilt over allegations of DRAM price fixing in the 2000s, raising the possibility that past cases could be cited as additional grounds in the latest lawsuit.

Even so, proving collusion in court is not expected to be easy. The court must determine whether each company reached similar judgments in the same market environment or pre-arranged the move. Reactions among tech users are mixed. One Reddit user said HBM "brings in far more profit" than existing DRAM and viewed expanding HBM output as a reasonable business choice.

Another user said that the reduction in DDR3 should be seen not only as being due to HBM but also because it is nearly 20-year-old technology. The user argued that since DDR3 is an old technology that has already been replaced by successor generations, cuts in production are hard to view as direct evidence of collusion.

For these reasons, the filing of the lawsuit is unlikely to immediately stabilise memory prices. The lawsuit itself has not yet proven anything, and the trial could drag on with appeals. Even if the plaintiffs win, expectations are growing that it would be difficult to reverse the current sharp rise in memory prices in a short period.

Ultimately, the case is likely to become a legal dispute over who bears responsibility for the surge in memory prices. For consumers, the more pressing problem remains that, regardless of the courtroom battle, they continue to feel the burden of higher RAM prices.