TSMC has confirmed for the first time that talks connected to Elon Musk's "Terafab" concept are underway, and has drawn one hard line: the chipmaker will not hand over control of any fab. The statement, reported by DigiTimes, breaks a silence the company had maintained since Musk began floating the idea of ultra-large semiconductor plants.

The confirmation matters because TSMC almost never comments on customer or partner discussions. Acknowledging that conversations exist signals the Terafab proposal has reached a level the world's largest contract chipmaker could no longer ignore.

What did TSMC actually say?

The company's position rests on two points:

• Talks linked to the Terafab concept are taking place.
• Control of fabrication facilities is non-negotiable — TSMC will not cede operational authority over any plant it runs.

The second point is the operative one. Musk's Terafab vision, as he has described it publicly, calls for semiconductor plants at a scale far beyond current industry norms, paired with the kind of vertical integration he has applied at Tesla and SpaceX. TSMC's answer draws the boundary precisely where that model collides with foundry practice: the customer can define demand, but the operator runs the fab.

That boundary is not rhetorical. TSMC's entire business depends on it. The company manufactures for hundreds of clients simultaneously, and its neutrality — never competing with customers, never favoring one — is the foundation of the foundry model it invented in 1987. Surrendering control of a plant to a single client, however large, would break that structure.

Why is the answer coming now?

TSMC had not previously addressed the Terafab concept at all. Musk's public statements about massive, highly automated semiconductor plants have circulated for months, and speculation about possible partners — TSMC among them — followed. Until now, the company declined to engage.

The shift to confirmation, with an explicit condition attached, reads as a deliberate move. TSMC has said, in effect: the discussion is real, and its terms are known before it advances further.

Who holds the leverage?

The control question frames the negotiation. Musk's companies buy silicon at scale — Tesla's training and inference compute requirements sit among the largest of any single corporate consumer. A plant sized to serve that demand would represent one of the largest capacity commitments in the industry.

TSMC, for its part, is the only manufacturer operating at the leading edge at volume. That asymmetry — one buyer of that size, one supplier of that capability — is what makes the talks significant and the control clause decisive.

What happens next?

Neither TSMC nor Musk's companies have disclosed the talks' scope, timeline, or participants. No figures for investment, capacity, or location have appeared. What exists today is a confirmed channel of discussion and a fixed condition on one side of it.

Fab control stays with TSMC. Everything else, apparently, is on the table.