TSMC would consider working on Elon Musk's proposed "Terafab," but only on one condition: TSMC itself must operate the facility. That is the reported position of the chipmaker's chief executive, according to a Yahoo Finance account of remarks made after Musk publicly floated the idea.

The statement matters because TSMC rarely comments on hypothetical customer projects. Its chief executive reportedly framed openness and control as inseparable. The company will not lend its process expertise to a plant it does not run.

Musk has pushed the notion of a "Terafab" — a hypothetical ultra-gigantic semiconductor plant named for tera-scale ambitions — and extended an invitation to TSMC to participate. The invitation was public. The response, as reported, was conditional rather than dismissive.

What did the TSMC CEO actually say?

According to the report, the CEO said TSMC is open to working on the Terafab concept, but that TSMC must run it. That single condition carries most of the weight in this story. It rules out a consultancy model, a licensing deal, or a joint operation under another party's command.

No dollar figure, capacity target, process node, or timeline appears in the reported remarks. Readers should treat this as a positioning statement, not a project announcement. Nothing in the source indicates a signed agreement, a site selection, or even preliminary engineering work.

Why does the operating condition matter?

TSMC's business model rests on process control. The company runs its own fabs in Taiwan and, increasingly, abroad, including its Arizona complex in the United States. It does not build fabs for others to operate. Asking TSMC to contribute while ceding operational authority would invert that model.

The condition also protects yield. Advanced logic manufacturing lives or dies on process discipline, and TSMC's pricing power depends on yields competitors cannot match. A Terafab run by a customer or partner would put that record at risk, and the CEO's reported stance reads as a refusal to gamble with it.

What is not said?

The report contains no confirmation from Tesla. It offers no capacity figure for the Terafab, no wafer size, no node, and no location. The word "reportedly" in the original headline signals that the CEO's comments have not been verified through an official transcript or press release.

Musk's invitation likewise remains a concept. Public product roadmaps from Tesla's silicon team, including its in-house AI accelerators, have so far relied on TSMC as a foundry customer rather than as a co-operator of capacity. Whether Musk envisions the Terafab as Tesla-owned capacity or something else is not stated.

What comes next?

Nothing binding has been announced. If talks progress, the first concrete signal would be a capacity or investment figure attached to a named site, and TSMC's condition — that it must run the fab — will define whether Musk's Terafab idea becomes a TSMC project or stays a slogan.