UMC Raises 2026 Capex to $2 Billion for AI-Driven Fab Expansions

United Microelectronics Corp. (UMC) announced Wednesday it is raising its 2026 capital expenditure budget to $2 billion to fund an expansion of its chip manufacturing facilities in Singapore and Taiwan. The Taiwanese foundry cited growing, AI-driven customer demand as the primary driver for the increased investment.

Expansion and Financials

The company's board approved a plan that includes adding cleanroom capacity at its Singapore facility and constructing a new fab building at its flagship campus in Tainan, Taiwan. In a statement, CEO Jason Wang said the plan will be executed in phases, allowing UMC to "remain focused on capital discipline while flexibly deploying capacity to fulfill customer demand."

The announcement was made alongside a strong second-quarter earnings report:

• Q2 Revenue: T$68.73 billion ($2.12 billion), up 17% from a year earlier.
• Q2 Net Income: T$42.26 billion, a year-over-year increase of 374.7%.

Market Context and Strategy

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UMC's strategy focuses on producing chips on more mature process nodes. This approach differs from industry leader Taiwan Semiconductor Manufacturing Co. (TSMC), which is heavily investing in the most advanced 1- and 2-nanometer technologies for high-performance AI processors.

The investment highlights that the AI boom is fueling demand across the entire semiconductor ecosystem. Mature-node chips are essential for supporting components such as power management ICs, sensors, and connectivity solutions that are critical for AI hardware and infrastructure.

Investor Reaction

The expansion news follows a period of significant stock appreciation for the chipmaker. UMC shares have risen 120% so far this year, substantially outperforming the broader market's 38.24% gain, according to the source material.

Despite the positive outlook and strong earnings, UMC's stock closed down 9.69% on Wednesday ahead of the official release, a move that can sometimes occur as investors take profits after a strong run-up.