ChipMOS TECHNOLOGIES INC. filed a Form 6-K with the U.S. Securities and Exchange Commission on November 10, 2026, disclosing the acquisition of machinery equipment and related accessories from ADVANTEST TAIWAN INC. for a total transaction price of NT$805,498 thousand.

Key Highlights

  • Total transaction price: NT$805,498 thousand for machinery equipment and related accessories.
  • Counterparty: ADVANTEST TAIWAN INC., disclosed as having no relationship with the Company.
  • Event period: The date of occurrence spans 2026/04/08 through 2026/11/10, according to the filing.
  • Approval authority: Approved at the President of the Company level on November 10, 2026; no board resolution was required.
  • Purpose: The filing states the acquisition is "for manufacturing purpose."
  • Disclosure trigger: The transaction exceeds NT$500 million, meeting the threshold under Article 4, Paragraph 1, Item 20 of the Taiwan Stock Exchange Corporation Procedures for Verification and Disclosure of Material Information of Companies with Listed Securities.

ChipMOS Equipment Purchase from Advantest Taiwan: Filing Details

ChipMOS TECHNOLOGIES INC. (NASDAQ:IMOS), a Taiwan-based semiconductor testing and assembly company headquartered in Hsinchu Science Park, submitted a Form 6-K report of foreign private issuer for the month of November 2026. The filing reproduces an announcement made at the Market Observation Post System (MOPS) of the Taiwan Stock Exchange Corporation on November 10, 2026, disclosing a significant asset acquisition.

According to the filing, the Company acquired machinery equipment and related accessories from ADVANTEST TAIWAN INC. at a total transaction price of NT$805,498 thousand. The filing states the counterparty has no relationship with the Company, and the transaction was not conducted with a related party. The event date range is listed as 2026/04/08 through 2026/11/10. The Company disclosed that pricing was determined by reference to market value and through mutual negotiation, and that the acquisition was "handled in accordance with the internal authorization." Payment and delivery terms are to be performed "pursuant to the terms and conditions set forth in the purchase orders agreed by both parties," according to the filing.

The filing notes that no board of directors resolution was required, and that approval was granted at the President level on November 10, 2026. No professional appraisal firm, appraiser, or CPA was engaged in connection with the transaction. No broker was involved and no broker's fee was incurred. The filing was signed by S. J. Cheng, Chairman and President of ChipMOS TECHNOLOGIES INC.

What Was Disclosed

ChipMOS TECHNOLOGIES INC. disclosed the acquisition of machinery equipment and related accessories from ADVANTEST TAIWAN INC. for NT$805,498 thousand, intended for manufacturing purposes, with the transaction approved at the President level on November 10, 2026.