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TSMC adds a 3nm plant in Taiwan, Chosunbiz reports

Chosunbiz reports a new 3-nanometer plant in Taiwan aimed at a 2028 ramp; it follows a September revenue rise TSMC tied to advanced-process demand and a three-week slide in the shares.

Published Last updated Data as of Oct 16, 2026 close KST By

Chosunbiz reported on Oct 19 that TSMC is adding a new chip plant in Taiwan for its 3-nanometer process, one of the company’s most advanced production technologies. According to Chosunbiz, TSMC aims to ramp production at the site in 2028.

TSMC has not confirmed the plant, and no filing on it has been made with the Taiwan Stock Exchange. The company has not said what the plant will cost or where in Taiwan it will stand.

Advanced chips lifted September revenue 54.65%

Chosunbiz linked the plan to quickly growing demand for AI chips. TSMC reported September 2026 revenue of NT$511.86 billion (about US$15.81 billion), up 54.65% from NT$330.98 billion a year earlier. In its report to the exchange, the company said the rise was “due to increased demand for advanced-process products.” A new 3-nanometer plant would add capacity in that part of the business.

September revenue was 0.57% lower than August’s NT$514.81 billion. For January through September, revenue reached about NT$3.9 trillion, a 41.11% increase from the same period of 2025.

Shares slid for three weeks before the report

The report came after the Taiwan market had closed for the week. On Friday, Oct 16, the shares ended at NT$2,420 (about US$74.77 at 32.368 NT dollars per US dollar), down 0.82%. From Sept 23 to Oct 16 the stock fell 3.2% in NT dollar terms and 5.21% in US dollar terms, while the New Taiwan dollar weakened 2.13%, from 31.693 to 32.368 per US dollar.

Line chart of TSMC’s TWSE closing price in New Taiwan dollars and in US dollars around 2026-10-19
Data: Taiwan Stock Exchange (TWSE OpenAPI); New Taiwan dollars per US dollar (Bank of Korea ECOS); as of the Oct 16 session (2026-10-16)

Information only, not investment advice.

For information only. Not financial advice, and not a recommendation to buy or sell any security. See the Disclaimer.

Sources

  1. TSMC adds Taiwan 3nm plant as AI chip demand surges, targets 2028 ramp — Chosunbiz, Oct 19, 2026, 17:08 KST
  2. TWSE closing prices (TSMC) — Taiwan Stock Exchange (TWSE OpenAPI), as of the Oct 16, 2026 session
  3. New Taiwan dollars per US dollar (statistic 731Y002) — Bank of Korea ECOS, as of the Oct 16, 2026 session
  4. TSMC: monthly revenue, September 2026 — Taiwan Stock Exchange (TWSE OpenAPI), table of Oct 17, 2026
  5. TSMC: consolidated income statement, 2026 January to June (year to date, 2 quarters) — Taiwan Stock Exchange (TWSE OpenAPI), table of Oct 19, 2026
  6. TSMC: dividend distribution — Taiwan Stock Exchange (TWSE OpenAPI), table of Oct 18, 2026

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