| Company name | Group | Parent | Subsidiary | Customer | Supplier | Alliance | Bank | Shareholder |
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| 和艦芯片製造(蘇州) (股)公司 | ||||||||
| 聯芯集成電路製造(廈門)有限公司 | ||||||||
| 凌陽華芯科技(廈門)(股)有限公司 | ||||||||
| 華矽半導體股份有限公司 | ||||||||
| Ahead Rise Co., Ltd. | ||||||||
| E-Realm Holding Limited | ||||||||
| Mars Investments Limited | ||||||||
| SiS Investments Limited | ||||||||
| SiS Investments Ltd. | ||||||||
| Ucomm Enterprise Corp. | ||||||||
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| 中國農業銀行 | ||||||||
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| 佳思捷(杭州)電子有限公司 | ||||||||
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| 宏康伊科技(深圳)有限公司 | ||||||||
| 廈門凌陽華芯科技股份有限公司 | ||||||||
| 廈門國際信託有限公司 | ||||||||
| 慧通智聯公司 | ||||||||
| 慧通智聯股份有限公司 | ||||||||
| 海寧憬麒科技公司 | ||||||||
| 海寧憬麒科技股份有限公司 | ||||||||
| 深圳市邦統科技有限公司 | ||||||||
| 矽統半導體(山東)有限公司 | ||||||||
| 科駿康電子(深圳)有限公司 | ||||||||
| 聯暻半導體(山東)有限公司 | ||||||||
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| 蘇州明兆光電科技有限公司 | ||||||||
| 高爾科技公司 | ||||||||
| 高爾科技股份有限公司 |
Company founded, headquartered in Hsinchu Science Park, Taiwan, focusing on PC-related IC design.
Invested in establishing HTI HuiTong Intelligence Co., Ltd., entering IoT chip design and development.
Invested in establishing MLight Technology Co., Ltd. in Suzhou.
Established subsidiary XGI Technology.
UMC Chairman Jia-Cong Hong assumes chairmanship of XITONG.
Completed full acquisition of UnitedDS Semiconductor, entering ASIC design services and IP.
Completed a stock-for-stock acquisition with Hycon Technology, expanding product line to BMS and mixed-signal IC.
Under multiple merger synergies and capital restructuring, the company announced successful turnaround to profitability.
Merger revenue reached 420 million NTD, with an annual growth rate of 171.58%, setting a new record since the transformation.
Xitong Technology, in order to integrate group resources and improve operational efficiency, has decided to merge with its wholly‑owned subsidiary Hongkang Technology. The merger effective date is scheduled for April 1, 2026; if adjustments are required due to regulatory authority requirements, laws, merger agreements, or actual execution, the chairpersons of both parties are authorized to handle it.
SiS’s board approved a short-form merger with its wholly owned subsidiary Hycon to integrate group resources and enhance operational efficiency. The merger record date is tentatively set for April 1, 2026, and the chairmen of both companies are authorized to adjust it if necessary.
The board of directors of Silicon Technology Co. has decided to merge with its wholly-owned subsidiary Hong Kang Technology, in order to integrate group resources and improve operational efficiency. The effective date of the merger is scheduled for April 1, 2026; if adjustments are required due to regulatory authority requirements, laws, merger agreements, or practical implementation needs, the chairpersons of both parties are authorized to handle them.
Xitong Technology Mainland China subsidiary Lianjing Semiconductor (Shandong) Co., Ltd. intends to acquire shares of Xiamen Lingyang Huaxin Technology Co., Ltd. After approval by relevant authorities, Lianjing will acquire part of the shares in cash, and the remaining publicly traded shares will be bought back and cancelled by Lingyang Huaxin using its own funds, at which point Lianjing will hold all shares of Lingyang Huaxin.
UnitedDS Semiconductor (Shandong), a second-tier subsidiary of Silicon Integrated Systems Corp. in mainland China, plans to acquire a portion of Xiamen Sunplus Huaxin Technology’s shares in cash, subject to regulatory approval. Sunplus Huaxin will repurchase and cancel its remaining outstanding shares using its own capital.
Xitong Technology Mainland subsidiary LianJing Semiconductor (Shandong) Co., Ltd. intends to acquire shares of Xiamen Lingyang Huaxin Technology Co., Ltd., pending approval from relevant authorities. LianJing will acquire a portion of the shares in cash, while the remaining publicly traded shares will be bought back and cancelled by Lingyang Huaxin using its own funds; upon completion, LianJing will hold all shares of Lingyang Huaxin.
Xitong Technology acquires Hangkang Technology equity and issues 27,755,080 ordinary shares with a par value of NT$10 per share, which has been approved by the Taiwan Stock Exchange. After the capital increase, the paid‑in capital will rise to NT$5,149,881,610. The new shares are expected to be allocated and listed for trading on January 1, 2025, but due to the weekend, the listing is postponed to January 2, 2025.
SiS received HYCON equity and issued 27,755,080 ordinary shares at NT$10 each, totaling NT$277,550,800, with the plan approved by the TWSE. The increase raised paid-in capital from NT$4,872,330,810 to NT$5,149,881,610. The new shares were expected to be transferred to designated securities depository accounts and listed for trading on January 1, 2025.
Xitong Technology acquires Hongkang Technology's equity increase shares, issuing 27,755,080 common shares with a par value of NT$10 each, totaling NT$277,550,800, which has been declared effective by the Taiwan Stock Exchange. After the capital increase, the paid‑in capital will rise from NT$4,872,330,810 to NT$5,149,881,610. The new share certificates are expected to be credited into Hongkang Technology shareholders' designated securities custodial account on January 1, 2025, and due to a holiday, the listing will be postponed to January 2.
Hongan Technology held a special shareholders' meeting on October 9, 2024, approving a share conversion with Xitong Technology. Xitong Technology will issue new shares as consideration to acquire 100% equity of Hongan Technology.