Elon Musk has confirmed talks with Taiwan Semiconductor Manufacturing Co (TSMC) to build a dedicated chip factory under the Terafab initiative, a plant that would supply custom silicon for Tesla, SpaceX and xAI across AI, automotive and spacecraft applications.

The project's stated goal is supply security, not foundry competition. Musk's companies want a steady flow of custom chips for AI compute, vehicles and spacecraft rather than entering the contract-manufacturing market themselves. The scope spans three distinct demand profiles — datacenter AI accelerators for xAI, automotive controllers for Tesla and radiation-hardened parts for SpaceX hardware.

As of Oct 05, 2026, 22:14 WIB, markets had already priced in the speculation. TSMC shares traded at USD 483.00 on Pluang, up 2.16% on the day. Tesla gained 2.11% to USD 378.42. SpaceX posted the largest move of the three, rising 5.08% to USD 167.02.

What deal structures are on the table?

Two ownership models are under discussion, according to the confirmed talks:

• TSMC owns and operates the plant, with SpaceX investing as a strategic partner.
• SpaceX holds majority ownership, with TSMC contributing process technology and manufacturing expertise.

The choice between the two structures determines who carries capital expenditure and who controls allocation of fab capacity — a decision with direct consequences for how Tesla and xAI secure their wafer supply.

What does the deal mean for Intel?

The shift may exclude Intel's 14A process node, which had previously been considered for Terafab. Intel is currently the sole manufacturing partner in the Texas-based chip venture, and Musk's confirmation of TSMC discussions triggered a 4% drop in Intel shares as investors reassessed the incumbent's position.

Losing the 14A slot would mark a significant reversal for Intel's foundry ambitions, removing a high-profile anchor customer from its leading-edge roadmap. It would also concentrate more of Musk's advanced-node demand at TSMC, already the dominant supplier of leading-edge logic worldwide.

How are investors positioning ahead of TSMC's earnings?

The Terafab talks add a strategic overlay to an already busy reporting cycle. TSMC reports earnings on October 15, 2026, and management commentary on AI chip demand, capacity and advanced packaging for 2027 will be closely watched by investors in Broadcom and NVIDIA, both of which depend on TSMC wafer supply.

Recent figures frame the setup:

• TSMC stock is up 51% year-to-date in 2026 on AI chip demand.
• Q2 revenue rose 36% year-over-year to USD 40.20 billion.
• The company expects over 40% revenue growth for full-year 2026.
• Analysts forecast Q3 EPS of USD 4.46 on revenue of USD 45.55 billion.
• Broadcom, which relies heavily on TSMC wafers, expects its AI semiconductor revenue to double.

Why does a captive fab matter for Musk's companies?

Chip shortages and long lead times have hit automotive and space manufacturers hardest, and Musk's operations span both. A dedicated plant would insulate Tesla, SpaceX and xAI from competing for allocation on merchant foundry capacity, where AI accelerator customers routinely bid up limited advanced-node supply.

For xAI specifically, guaranteed access to custom AI silicon could shorten the gap between chip design and deployment. For SpaceX, majority ownership in a fab would extend the vertical integration the company already applies to launch hardware and, more recently, consumer devices through its direct-to-cell satellite program.

What comes next?

No agreement has been finalized. The two parties must settle the ownership structure, the technology transfer terms and the capacity split among Tesla, SpaceX and xAI before any construction commitment. The October 15 earnings call offers TSMC management a public venue to address the speculation — or decline to.

Until then, the market's read is unambiguous: TSMC gained on the news, Intel lost 4%, and SpaceX — the least chip-exposed of the three Musk entities — delivered the session's strongest move at 5.08%.