Tesla's robotics team has been auditing component suppliers in China ahead of mass production of Optimus, according to the South China Morning Post, which attributes the account to two corporate executives with business ties to the manufacturers. Tesla has not commented, and none of the three companies has announced a contract.
Who is being looked at
| Supplier | Component area | Already supplies Tesla's cars |
|---|---|---|
| Tuopu Group | Chassis parts, actuators | Yes |
| Ningbo Joyson Electronic | Sensors, automotive electronics | Yes |
| Zhejiang Sanhua Intelligent Controls | Thermal management | Yes |
The pattern matters more than the names. Not one of the three is a robotics specialist that Tesla went looking for. All three are existing suppliers to Tesla's vehicle business being assessed for a second product line, and all three sit in Zhejiang province in eastern China. Secondary accounts place the visit in Ningbo on 16 September with the audit the day after; the SCMP report itself does not date it.
What is confirmed, and what is only circulating
Bloomberg reported on 18 September that shares in Chinese robotics suppliers rose on news of the audit. That much is consistent across outlets. The precise moves are not — one account has Tuopu up 2.8% with the other two above 1%, another has Joyson limit-up, Tuopu at 4.36% and Sanhua at 2.70%. Those are probably different snapshots of the same session, which is a reason to quote the direction rather than the decimal.
Several harder numbers are being repeated that do not trace back to either SCMP or Bloomberg: an initial order of roughly 5,000 units, a rate of about 1,000 robots a week rising to 2,000–2,500 by the end of the year, and roughly 50,000 Optimus units built in 2026. Those come from supply-chain accounts relayed through Teslarati. They also do not reconcile with each other — 2,000 to 2,500 a week for the rest of this year is on the order of 30,000 robots, against an initial batch supposedly six times smaller. Treat them as chatter until somebody puts a name to them.
Texas assembly, Zhejiang parts
The audit lands a week after TeslAnt covered the Optimus factory at Giga Texas reaching its steel-frame stage, with production meant to begin next summer. Put the two together and the shape of the programme is the same one Tesla already runs for cars: final assembly in Texas, a large share of the components from China.
That shape carries the exposure that goes with it. Tariffs apply to robot parts as readily as to car parts, and a supply base concentrated in one province is a single point of failure in a way a diversified one is not.
Why a European reader should care
The line to Tesla is indirect but not small. Optimus is a substantial part of how Tesla argues its own valuation, and the competitive clock is visible: XPeng has already built a humanoid production line while Tesla is still installing one. An audit is the step that comes before orders. It is not the orders.