Korea's two memory giants have agreed to pay more for ASML parts and maintenance services, a decision that leaves TSMC as the last major holdout in the Dutch supplier's push to reprice after-sales support across the chipmaking industry.

According to DigiTimes, Samsung Electronics and SK Hynix — the world's two largest DRAM and NAND producers — have accepted ASML's price increase for spare components and service contracts on the lithography equipment that sits at the heart of their fabs. Neither memory maker publicly confirmed terms. But the acceptance itself matters. It signals that foundries and memory houses now have less leverage over their most critical tool vendor than they did two years ago.

ASML doesn't just sell machines. It sells the ability to keep them running.

EUV and deep-ultraviolet scanners can cost well into nine figures per unit, and their uptime depends on proprietary parts, calibrated service engineers and software support that only the Veldhoven-based vendor can provide. That dependency gives ASML unusual pricing power once a tool is installed — a dynamic the industry calls the razor-and-blades model, and one that ASML has leaned on as its new-system shipments have grown more selective.

Why did the Korean makers fold first?

Memory producers run fabs at brutal utilization rates. A downed scanner at Samsung's Pyeongtaek campus or SK Hynix's M14 line in Cheongju bleeds revenue by the hour, and with HBM demand pulling DRAM capacity tight, neither company could afford a prolonged standoff over service pricing. Accepting the hike was, in effect, an insurance payment on supply commitments to customers including Nvidia and other AI-accelerator makers.

The calculus differs at TSMC. The foundry operates the industry's largest installed base of EUV tools and buys in volumes that no other customer matches, which historically has earned it preferential commercial terms. TSMC has not publicly accepted the increase, DigiTimes reports, and its negotiations remain the open question in this story. A public concession from Hsinchu would effectively reset after-sales pricing for the entire equipment ecosystem — from Applied Materials and Lam Research to Tokyo Electron — since vendors watch each other's service margins closely.

What does this mean for costs downstream?

Service and parts are not a rounding error. Across the industry, after-sales support and field operations represent a steadily growing share of toolmakers' revenue and an even larger share of margin, because spares carry higher profitability than new systems. When the biggest vendor raises parts prices and its largest customers absorb them, those costs migrate downstream — into wafer pricing, into foundry quotes, and ultimately into the bill of materials for every chip that passes through an advanced fab.

For memory buyers, the timing is uncomfortable. DRAM contract prices have already been climbing on AI-driven demand, and a higher service-cost base gives suppliers one more reason to hold the line on pricing when negotiations reopen.

The standoff between ASML and TSMC now sets the pace. If TSMC blinks, expect every tool vendor with a captive installed base to test the same playbook within the year.