2026-09-24 — Dutch prime minister says he expects a deal with Washington on the MATCH Act

• Dutch Prime Minister Rob Jetten said on 2026-09-24 he has spoken with President Trump and US lawmakers about the MATCH Act and is “pretty confident we will come to some agreement that is workable for each and every one.” Speaking to Bloomberg Television in New York, Jetten described the Act as stopping all sales to China of ASML’s immersion DUV machines, on top of existing EUV controls; Bloomberg noted China was 14% of ASML’s net system sales in the second quarter, down from 19% in the first. No agreement has been announced. (Bloomberg via Livemint, Bloomberg)

2026-09-22 — ASML’s own public-affairs chief says the EUV monopoly is selling nothing at all in its home region

• ASML Executive Vice President Frank Heemskerk said at an Amsterdam event Monday evening that ASML “is not selling anything at all in Europe,” and that the region risks being left behind as the US, China and India all build out domestic chip manufacturing that actually buys ASML’s tools. This doesn’t touch the thread’s core export-control/China-DUV fight directly, but it is a new, dated, on-the-record data point that sharpens the thread’s “structural chokepoint” framing from its own opening rationale — the sole global supplier of EUV lithography has zero commercial demand in the one region that hosts it, because that region isn’t building the fabs that would buy the tools. (Bloomberg)

2026-09-14 — ASML drops 6.2% as Amodei’s “pace the frontier” essay reads across into AI-capex fear, dragging the whole chip-equipment chain down with it

• ASML shares fell 6.2% (to $1,592.89) on 2026-09-14, its sharpest one-day drop since the July China-DUV mass-production scare this thread opened around, after Anthropic CEO Dario Amodei’s “We Must Pace the Frontier” essay (published 09-12, calling for coordinated slowdown of frontier AI capability growth) read by markets as a signal that AI capex — and with it demand for the EUV tools this thread exists to track — could soften. Nvidia fell in parallel (down roughly 3-3.7% premarket the same day) on the same read-across; the S&P 500 and Nasdaq each moved less than half a point, so this was a chip/AI-equipment-specific reaction, not a broad market move. This is a market-pricing event, not a change to ASML’s order book, capacity, or the China-DUV/export-control fight this thread otherwise tracks — but it is the first time this thread has recorded the market treating a safety-pacing call, rather than a China-substitution or export-control story, as a demand risk to the EUV monopoly itself. (Motley Fool, TradingKey on NVDA)

2026-09-10 — Correction: OpenAI Korea walks back its own executive’s “next-generation chips” comment on the Samsung partnership

• OpenAI Korea’s General Manager Harrison Kim told a Seoul press conference OpenAI and Samsung would do “joint production and research on the next-generation chips,” but OpenAI Korea subsequently clarified there was “nothing new to announce on this front.” This is a correction to this thread’s 09-09 entry below (Kim’s foundry/2nm comment) — the walk-back downgrades that disclosure from a substantive R&D-scope expansion to an unclarified remark the company itself pulled back from. Separately in the same coverage: Samsung and SK hynix have signed letters of intent to supply memory for OpenAI’s Stargate project. (KSL/AP)

2026-09-09 — OpenAI deepens its chip R&D partnership with Samsung, extending into foundry/2nm process work

• OpenAI is deepening its chip R&D partnership with Samsung, extending the collaboration into Samsung’s foundry and 2nm process work. Confirmed by OpenAI Korea GM Harrison Kim at a Seoul press conference; no technical, volume or timeline detail disclosed. Adjacent to this thread’s own entity list (Samsung already carries High-NA EUV adoption and the Mistral stake here) rather than a new node in the ASML story itself — routed here for lack of a dedicated Samsung-foundry thread. (sammyfans, Quartz)

2026-09-08 — TSMC, Samsung and Intel all commit to High-NA EUV; ASML and TSMC open a joint photomask initiative

• TSMC, Samsung and Intel all committed to ASML’s High-NA EUV tools, the clearest signal yet that the entire leading edge is converging on one toolmaker for the next node, extending ASML’s standard-EUV monopoly position into High-NA. ASML and TSMC also opened a joint initiative on large-format photomasks, with a pilot production line targeted for 2031 — the honest timescale of this transition. (CNBC, Intel Foundry, pr.tsmc.com)

2026-08-25 — Chinese state media urges Dutch retaliation over the threatened ASML export ban

• Global Times published an op-ed telling the Netherlands to answer any US-forced ban on ASML China sales with a Canada-style countermeasure, arguing the move would only accelerate China’s domestic DUV substitution rather than protect US leverage. The piece is a state-media signal on the third front of this fight — China’s own public response — rather than confirmation of any new US or Dutch policy action. (Global Times)

2026-08-21 — Correction: the MATCH Act’s vehicle stalled five weeks ago, over Iran

• ⚠️ This thread has been carrying “MATCH Act passed House committee” as if the bill were still moving. It is not. MATCH was riding as an amendment to the FY2027 NDAA, and on 2026-07-14 the Senate failed cloture on the underlying NDAA 50-46 (60 needed), with Democrats blocking it over the administration’s Iran war conduct and Israel-related provisions — nothing to do with the chip language. Majority Leader Thune switched his vote to “no” to preserve a motion to reconsider, so the bill is stalled rather than dead, and had not been revived as of today. The reading this changes: ASML’s near-term export-control exposure is currently gated by an unrelated legislative fight, not by chip-policy consensus holding or breaking. Surfaced by an analysis piece today; the vote itself was independently confirmed against wire coverage and the Senate roll call. (Bits&Chips · Al Jazeera · The Hill)
• ⚠️ Not logged, deliberately: several outlets ran 08-20/21 pieces headlined on the US “preparing to force the Netherlands to ban ASML from selling to China”. The originals 403’d on fetch, and near-identical framing exists as far back as 2024 plus a close SCMP match from 2026-05-13. Unverified as a new policy action; recorded here as a checked-and-rejected item rather than left invisible.

← Backstory

2026-08-04 — China lithography roadmap review; DUV pace confirmed, EUV prototype still chipless

• A same-day roadmap review confirms China’s domestic tool-maker Shanghai Aishengna is on pace for roughly 5 immersion DUV machines a year, and notes China’s separate Shenzhen-based EUV prototype effort has produced no usable chips yet. (Tom’s Hardware — headline-level, full body not retrievable)

2026-08-02 — CXMT’s LPDDR6 push shows a DUV performance ceiling (unverified)

• TechTimes reports CXMT nearing LPDDR6 memory production but flags a 12.8 Gbps vs. 14.4 Gbps performance gap attributed to China’s DUV-only (no EUV) manufacturing ceiling — thin: article body was blocked (403), headline only.

2026-07-30 — Domestic 7nm scanner forecast lands much later than the breaking story implied

• An AI Futures Project forecast (June 2026) puts a commercially viable Chinese domestic 7nm immersion scanner between 2032 and 2038 (median 2035) — far beyond the “delivered this year” framing of the 2026-07-28 breaking story below. (Tom’s Hardware — headline/snippet confirmed, full body not retrievable)

2026-07-29 — The reverse-engineering ceiling, explained

• A full-text policy piece (War on the Rocks) lays out why China’s EUV reverse-engineering push can’t just leapfrog ASML: ASML’s EUV machines have 100,000+ components (700,000 at subsystem level) from ~5,000 suppliers, cost ~$180M (standard) to ~$380M (High-NA), and depend on tacit, path-dependent systems-integration knowledge that component-level reverse engineering (reported use of former ASML engineers, per a Dec-2025 report) doesn’t capture — plus supply-chain chokepoints entirely outside China’s reach: Japanese photoresist makers JSR/TOK/Shin-Etsu, Tokyo Electron’s near-monopoly on EUV photoresist coaters/developers, Hoya/AGC on mask blanks, KLA on metrology, and Lasertec’s near-monopoly on actinic mask inspection. ASML also runs ~10,000 field-support engineers who need close to a year of training each — a services moat on top of the hardware one.

2026-07-28 — Shanghai Aishengna named as China’s first domestic immersion-DUV maker

• Shanghai Aishengna Electronic Technology Group (state-owned, founded 2023, 7B yuan/$1B registered capital, absorbing engineering teams from Huawei-affiliated startup Yuliangsheng and state scanner maker SMEE) is confirmed as the maker behind China’s first domestically-produced immersion DUV lithography tools — ~5 units targeted for 2026, ~20 for 2027, with first deliveries to SMIC, Hua Hong, and CXMT this year for production-line validation (SMIC reportedly testing a unit since 2025-09). The tool prints 28nm-class features in a single exposure (7nm-class only via multi-patterning) — consistently described as “a generation behind” ASML, which still holds an estimated ~98.7% of the global immersion-lithography market. This is the same story this repo’s Homegrown DUV thread already tracks; the identity and detail here are fresher. (TrendForce, corroborated by Tom’s Hardware/TechPowerUp/TechTimes)

2026-06-24 — Dutch government still irritated over MATCH Act’s reach

• Dutch government reported “irritated” by new US ASML restriction plans, continuing pushback that began with April’s royal visit to Washington below. (NL Times)

2026-06-19/21 — ASML denies an EUV tool ever reached China

• ASML publicly denied allegations behind the Lutnick inquiry (below): the company states none of its 314 operational EUV machines worldwide (plus 26 decommissioned) are located in China, calling the allegations “false and reputation-damaging.” A confirmed violation would breach the multilateral Wassenaar Arrangement. No source found confirms a resolution either way as of this crawl (2026-08-04) — the matter appears to remain open. (TechTimes, Asia Times)

2026-07-15 — Q2 2026 earnings: guidance raised again, and Intel ships the first High-NA logic chips

• ASML’s Q2 2026 results: €9.3B net sales, €2.9B net income (31.3% margin), 54.0% gross margin, €7.59 EPS, 86 new + 5 used systems sold, system mix Logic 51%/Memory 49%, free cash flow €1.3B. Full-year 2026 guidance raised to €43-45B net sales, 54-56% gross margin (up from April’s €36-40B/51-53%); Q3 2026 guided €11.0-12.0B revenue, 55-57% gross margin. Quarterly net-bookings disclosure appears to have quietly stopped — H1 order intake was only characterized as “very strong.” 2027 EUV order coverage called “close to being fully covered,” with a planned 30% capacity increase for both low-NA EUV and DUV immersion systems. (ASML press release / GlobeNewswire)
• Same day: Intel Foundry became the first company anywhere to ship high-volume commercial logic made with ASML’s High-NA EUV tool — select layers of Intel 18A-node Core Ultra Series 3 (“Panther Lake”) chips, with yields on those “dual-qualified” layers already matching the established (lower-NA) platform. This is a production-readiness milestone on select layers, not a full-chip High-NA process yet. (ASML press release, corroborated by SiliconANGLE/Tom’s Hardware/ TechTimes)
• CFO Roger Dassen, same call: “We still look at China as approximately 20% of our total net sales, so that percentage hasn’t changed” — attributed to domestic-led logic-chip demand moving in sync with global demand. This sits against a reported H1 2026 actual of 16% (down from 19% in Q1, 36% in Q4 2025) — the two figures aren’t reconciled by any source found; both are carried rather than picked. (ASML Q2 2026 earnings call transcript)

2026-04-15 — Q1 2026: guidance set with export-control risk already priced in

• CEO Christophe Fouquet, Q1 2026 results: full-year guidance set at €36-40B net sales, 51-53% gross margin, with Fouquet stating directly that “the bandwidth in our 2026 guidance accommodates potential outcomes of ongoing discussions around export controls” — guidance was built with the fight below already in mind. (ASML SEC 6-K)

2026-04-02/08 — The MATCH Act: a real legislative vehicle targeting DUV, not just EUV

• The MATCH Act (Multilateral Alignment of Technology Controls on Hardware Act) was introduced in both chambers — House sponsor Rep. Michael Baumgartner; Senate companion S. 4281 (Sens. Pete Ricketts, Andy Kim, co-sponsored by Senate Democratic Leader Chuck Schumer). It would classify all DUV immersion lithography tools (not just EUV) as “covered semiconductor manufacturing equipment,” give Commerce 150 days to certify the Netherlands and Japan have matched US-style country-wide controls, or else unilaterally extend US jurisdiction via the Foreign Direct Product Rule. It later passed the House Foreign Affairs Committee (a countrywide cryogenic-etch ban was stripped first; DUV restrictions survived), reported as the “largest export control markup in the history of Congress.” One analysis judges it will pass the House this year but not become law in the 119th Congress, with the Senate side possibly folded into the NDAA instead. ASML shares reportedly fell ~3.44% on the initial news. (Yahoo Finance, TechWireAsia, NBC News, ChinaTalk, Manufacturing Dive)
• Dutch PM Rob Jetten named ASML export controls as a primary reason for King Willem-Alexander and Queen Máxima’s April 2026 state visit to Washington, including a White House dinner with President Trump — talks described as “constructive but without consensus.” (NL Times, MarketScreener, MLQ News)
• Around the same period, Commerce Secretary Howard Lutnick began privately questioning senior ASML executives over a concern that an EUV lithography system may have reached China in violation of export controls — see ASML’s denial above (2026-06-19/21). (Implicator.ai, TechTimes, Techzine, Foreign Policy Journal)

2025-09-09 — ASML leads Mistral AI’s Series C, becomes its largest shareholder

• ASML invested €1.3B (~$1.5B) as lead investor in Mistral AI’s Series C, taking an ~11% fully-diluted stake and valuing Mistral at ~$13.8-14B — ASML’s largest single shareholder. ASML CFO Roger Dassen holds the company’s seat on Mistral’s Strategic Committee, confirmed still active into 2026. As of this crawl (2026-08-04): Mistral is reportedly “in talks” for a new round at $23B valuation ($3.5B raise), but no source confirms whether ASML is participating — status unresolved. (CNBC, ASML press release, ASML governance page, Yahoo Finance)

2024-12-05 — The standing US legal mechanism (background)

• BIS’s Foreign-Produced Direct Product Rule update set a 0% de-minimis threshold for certain lithography equipment, giving the US jurisdiction leverage over ASML indirectly via Cymer, its San Diego-based excimer-laser subsidiary — the active legal mechanism underneath the 2026 fight above, unchanged this crawl window. (Federal Register, doc 2024-28270)