The Vacated-Node Signal — Why Samsung's 42% MLC Walk-Away Handed Taiwan a 170% Pricing Window in One Quarter

What Taiwan actually drew this week was a map of empty chairs

The real story in Taiwan semiconductor news for the week of July 13–15 is not TSMC's record H1 revenue (NT$2.4T, +36% YoY), nor the TAIEX's remarkable +54.5% YTD. It is a single abandoned seat.

Last month Samsung Electronics quietly ceased MLC NAND production. Samsung had held over 42% global share in that niche category and was the sole large-scale third-party capacity seller. Kioxia scaled back SLC output in the same window; Macronix redirected fab resources to other lines. The moment three names walked off the mature-NAND floor, spot prices for industrial, automotive and networking flash jumped 2–3x (cnyes, 2026-07-15). TrendForce now forecasts H2 2026 SLC NAND contract prices will rise 120–170% versus H1 (TrendForce via cnyes, 2026-07-13).

This is not cyclical scarcity. This is abandonment.

Taiwan wrote the price sheet on the empty chair

What PSMC (5347-TW) disclosed at its July 14 analyst meeting priced that empty chair with unusual precision: a 40–45% DRAM foundry wafer price hike (the second July increase), 10–15% on 8-inch and mature nodes, 92%+ yield on 8-layer Wafer-on-Wafer, and validation with an international advanced-packaging customer (cnyes, 2026-07-14). Q2 revenue reached NT$17.3B (+53% YoY), gross margin hit a 3.5-year high of 28% (QoQ +18pp), and the chairman publicly committed to restoring dividends in 2027 (technews, 2026-07-14).

Nanya Technology's Q2 was even more extreme: revenue NT$82.5B (+68% QoQ), gross margin 79.5%, EPS NT$14.66, DRAM ASP up 60%+ sequentially. Three foreign brokers lifted their target price to NT$650 (technews, 2026-07-13). 79.5% is not a foundry margin. It is the margin a monopoly earns.

Taiwan's OTC semiconductor sector posted +72% YoY June revenue, with total TPEx-listed companies up 38% (). That number was not authored by logic. It was authored by .