TSMC Dismisses Terafab Rumors as Texas Factory Talks Surface

Taiwan Semiconductor Manufacturing Co. dismissed market reports on Oct. 2, 2026, that linked the contract chipmaker to Elon Musk's planned Terafab chipmaking venture in Texas.

The company said in a written statement that it does not comment on market rumors. The response followed reports that TSMC is evaluating a new Texas foundry campus costing at least $20 billion per fab.

Any Texas buildout would stand separate from the $265 billion TSMC committed to its Arizona site. North American customers accounted for more than 75% of TSMC wafer revenue in the first half of the year.

Musk announced the Terafab project on March 21, 2026, as a joint venture between Tesla and SpaceX. The venture targets more than one terawatt of annual computing capacity for autonomous vehicles and artificial intelligence models.

Filings with the U.S. Securities and Exchange Commission confirm that Intel joined as Terafab's primary foundry partner in April 2026. Intel committed its 18A and 14A manufacturing nodes to supply the facility.

The partnership positioned Intel to anchor chip fabrication for Musk's hardware initiatives. Tesla and SpaceX filed registration statements on Form S-1 outlining the compute roadmap in April and August 2026.

Public records in Grimes County, Texas, detail an initial $16.8 billion capital outlay for the first phase of the Terafab campus. Total planned spending across all phases could reach $119 billion.

Terafab aims to operate a prototype wafer fabrication plant in Austin by late 2027. Full production at the permanent Grimes County complex is scheduled for completion before the end of 2028.

Rumors of TSMC involvement gathered momentum after reports indicated company scouts had reviewed prospective sites near Austin. The proximity to Tesla's central operations led market observers to suggest a foundry tie-up.

TSMC leadership previously expressed skepticism regarding Musk's independent semiconductor plans. Chairman C.C. Wei told investors at the annual shareholder meeting on June 4, 2026, that building a greenfield foundry takes three to five years.

Wei wished Musk luck during that meeting but noted that wafer manufacturing involves operational discipline that outsiders consistently underestimate. TSMC had not engaged in formal technical discussions with the project team.

Modern semiconductor manufacturing requires intricate supply chains and thousands of specialized suppliers. TSMC operates high-volume foundries that depend on decades of yield optimization and proprietary packaging techniques.

Equipment procurement across the foundry sector has tightened as chipmakers race to expand packaging lines. TSMC Deputy Co-Chief Operating Officer Cliff Hou said last month that tool orders doubled over the prior year.

Packaging bottlenecks center on chip-on-wafer-on-substrate capacity, known as CoWoS. TSMC allocates nearly all advanced packaging capacity to existing high-volume accelerator clients including Nvidia, Advanced Micro Devices and Broadcom.

Diverting leading-edge packaging lines or 2-nanometer wafer capacity to an unproven external initiative would introduce operational risks. TSMC prefers multiyear customer commitments backed by advance prepayments and joint capacity reservations.

Texas already hosts large semiconductor manufacturing complexes run by Samsung Electronics and Texas Instruments. Samsung operates a logic foundry in Taylor, while Texas Instruments expands mature-node analog capacity in Sherman.

TSMC currently maintains design service centers in Austin and San Jose, alongside a mature fab in Camas, Washington. A full fabrication campus in Texas would mark its second major manufacturing cluster in the United States.

High utility costs, clean water requirements and local power availability pose logistical hurdles for new Texas fabs. Terafab itself intends to draw heavy electrical loads from dedicated substation infrastructure at the Grimes County site.

Federal incentives also dictate the pace of foundry investments across the United States. TSMC used the 2022 CHIPS and Science Act to support three advanced fabrication plants at its complex in Phoenix.

The U.S. advanced-manufacturing investment tax credit, which provides a 35% tax benefit for qualifying semiconductor tools and facilities, expires Dec. 31, 2026. Foundry operators are conditioning new U.S. campuses on legislative renewal.

Congressional lawmakers have debated extending the 35% tax credit into 2027, but no formal tax package has cleared committee votes. A lapse in the tax incentive would alter internal rate-of-return models for foreign foundries.

The company has not filed regulatory disclosures regarding Texas property acquisitions, and public records show no commercial agreement between TSMC and Terafab.

For now, Intel retains exclusive manufacturing rights under the registered Terafab disclosures. TSMC plans to review fourth-quarter capital expenditure guidance during its third-quarter earnings conference on Oct. 15, 2026.