Unimicron — Ownership & AI-Server Chain Position
Unimicron has 1 sourced relationship on EveryTie — backed by a verbatim quote from official company filings — and sits in the AI-server supply chain at Substrates & PCB.
Every relationship below is sourced to a verbatim quote from a public company filing that names the counterparty, with a one-click link to the original document.
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1 ownership tie1 source filing
Where it sits in the AI-server chain
The stages where a filing quote places this company on the AI-server chain.
Ownership & investments
Held by ←
UMC
Filed 2026-04-30 · 123 days ago
“On December 17, 2025, our board approved capital injection of up to NT$700 million in Unimicron Technology Corp. to participate in its capital increase.”— UMC 20-F, filed 2026-04-30 EDGAR · View source filing ↗
Filed activity
Filings by Unimicron itself, from our archive: US SEC earnings filings (Form 8-K Item 2.02 and Form 6-K results reports) since 2025-07-22, plus Taiwan Stock Exchange material announcements where covered. Not a complete filing history; subjects appear verbatim in their original language.
Showing the 8 most recent of 24 filed events; the full set stays in the underlying data archive.
2026-08-28Cooperation announcementThe Company is cooperating with investigative authorities in connection with an investigation regarding Offenses Against Agriculture, Industry, and Commerce
2.Cause of occurrence: Taiwan Taoyuan District Prosecutors Office instructed Taoyuan Investigation Bureau visited the Company today to conduct a search and investigation, primarily to examine matters relating to Offenses Against Agriculture, Industry, and Commerce.Show more from the filing
1.Date of occurrence of the event:2026/08/28 2.Cause of occurrence: Taiwan Taoyuan District Prosecutors Office instructed Taoyuan Investigation Bureau visited the Company today to conduct a search and investigation, primarily to examine matters relating to Offenses Against Agriculture, Industry, and Commerce. 3.Countermeasures: The Company will fully cooperate with the investigative authorities so as to clarify the facts of the case. 4.Effect on the Company's finances and business: There is no material impact on the Company’s financial condition or business operations. 5.Any other matters that need to be specified:None
— TWSE eMOPS material announcement (paragraph 19) · View announcement ↗
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch; total transaction price: NT$ 360,560,000Li Wey Technology Engineering Co., Ltd. ; non-related party transactionShow more from the filing
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities 2.Date of occurrence of the event:2026/07/24~2026/08/26 3.Date of the board of directors resolution:NA 4.Other approval date:2026/08/26 5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch; total transaction price: NT$ 360,560,000 6.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): Li Wey Technology Engineering Co., Ltd. ; non-related party transaction
— TWSE eMOPS material announcement (paragraph 20) · View announcement ↗
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch;total transaction price:NT$ 307,654,000GO FAR Engineering Co., Ltd ; non-related party transactionShow more from the filing
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities 2.Date of occurrence of the event:2026/01/23~2026/08/25 3.Date of the board of directors resolution:NA 4.Other approval date:2026/08/25 5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch;total transaction price:NT$ 307,654,000 6.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): GO FAR Engineering Co., Ltd ; non-related party transaction 7.Where the trading counterparty is a related party, announcement shall also
— TWSE eMOPS material announcement (paragraph 20) · View announcement ↗
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch; total transaction price: NT$ 307,229,822FU KUO ELECTRIC CO.,LTD ; non-related party transactionShow more from the filing
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities 2.Date of occurrence of the event:2025/09/08~2026/08/05 3.Date of the board of directors resolution:NA 4.Other approval date:2026/08/05 5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch; total transaction price: NT$ 307,229,822 6.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): FU KUO ELECTRIC CO.,LTD ; non-related party transaction 7.Where the trading counterparty is a related party, announcement shall also
— TWSE eMOPS material announcement (paragraph 20) · View announcement ↗
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch; total transaction price: NT$ 304,097,622CHENG DEH FIRE PROTECTION INDUSTRIAL CORP ; non-related party transactionShow more from the filing
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities 2.Date of occurrence of the event:2025/08/14~2026/07/31 3.Date of the board of directors resolution:NA 4.Other approval date:2026/07/31 5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch; total transaction price: NT$ 304,097,622 6.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): CHENG DEH FIRE PROTECTION INDUSTRIAL CORP ; non-related party transaction
— TWSE eMOPS material announcement (paragraph 20) · View announcement ↗
2026-07-21Transaction announcementTo announce related materials on acquisition of machinery and equipment
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Machinery and equipment5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch;total transaction price:NT$ 1,056,690,000MIRLE Automation Corporation ; non-related party transactionShow more from the filing
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Machinery and equipment 2.Date of occurrence of the event:2026/05/27~2026/07/21 3.Date of the board of directors resolution:NA 4.Other approval date:2026/07/21 5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch;total transaction price:NT$ 1,056,690,000 6.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): MIRLE Automation Corporation ; non-related party transaction
— TWSE eMOPS material announcement (paragraph 20) · View announcement ↗
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch; total transaction price: NT$ 442,550,000Li Wey Technology Engineering Co., Ltd. ; non-related party transactionShow more from the filing
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities 2.Date of occurrence of the event:2026/05/29~2026/07/13 3.Date of the board of directors resolution:NA 4.Other approval date:2026/07/13 5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch; total transaction price: NT$ 442,550,000 6.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): Li Wey Technology Engineering Co., Ltd. ; non-related party transaction
— TWSE eMOPS material announcement (paragraph 20) · View announcement ↗
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch;total transaction price:NT$378,440,000MEGA UNION TECHNOLOGY INC.; non-related party transactionShow more from the filing
1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): Facilities 2.Date of occurrence of the event:2025/07/08~2026/07/07 3.Date of the board of directors resolution:NA 4.Other approval date:2026/07/07 5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction volume:one batch;total transaction price:NT$378,440,000 6.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): MEGA UNION TECHNOLOGY INC.; non-related party transaction 7.Where the trading counterparty is a related party, announcement shall also
— TWSE eMOPS material announcement (paragraph 20) · View announcement ↗