Today, the three major A-share indices collectively declined. By market close, the Shanghai Composite Index fell 0.45% to 3,858.13 points; the Shenzhen Component Index dropped 2.14% to 12,553.84 points; and the ChiNext Index declined 2.85% to 2,872.22 points. Over 4,000 stocks fell across Shanghai and Shenzhen markets, with total trading volume reaching 2.875 trillion yuan. However, robot concept stocks surged against the trend in the afternoon session. Among them, local Zhejiang robot concept stock Zhejiang Rongtai hit the daily limit, closing at 86.27 yuan per share. Popular stocks including Swancor Advanced Materials, Siasun Robot & Automation, Wuzhou New Year, Juyuan Intelligent Equipment, Chunxing Precision Manufacturing, Borje & Co, and Topgroup also showed significant movements.
Zhejiang Rongtai's office is located in Nanhu District, Jiaxing City, Zhejiang Province. The company's main business involves research, development, production and sales of various high-temperature resistant insulating mica products. In June this year, the company stated on an investor interaction platform that "the company's humanoid robot business has begun to take shape," which led to it being labeled as a "robot concept" stock.
In July, Zhejiang Rongtai announced that through capital increase, it subscribed to 3.724 million yuan of new registered capital of Guangdong Jinli Intelligent Transmission Technology Co., Ltd. at 27.03 yuan per share, corresponding to a 5.03% stake in the target company after the capital increase. Additionally, through share transfer, it acquired a total of 7.373 million shares from existing shareholders of the target company.
Jinli Transmission's main business involves research, development, production and sales of micro intelligent transmission modules, micro geared motors, and micro motors, providing integrated solutions combining motion drive and control with micro transmission as the core. Reducers are precisely the core components in robot assemblies.
The significant surge in robot sector stocks this afternoon was closely related to two pieces of news: First, Unitree Robotics posted on social media platform X that it expects to submit listing application documents to securities exchanges between October and December 2025. Second, rumors circulated that a leading robot listed company held a meeting with Tesla Motors today, where Tesla Motors provided very optimistic guidance for next year's production capacity.
The rumor indicated that Tesla Motors requested the company to prepare for production capacity ramp-up in the first quarter of next year, with weekly production capacity potentially reaching 10,000 units by the third quarter of next year. Industry analysts pointed out that this guidance is "terrifying." Currently, these rumors have not been confirmed by relevant parties.
According to multiple sources, the "leading robot listed company" mentioned in the rumors may be Zhejiang Rongtai. Affected by this, Zhejiang Rongtai has surged 288.6% year-to-date.
This afternoon, reporters repeatedly attempted to contact Zhejiang Rongtai by phone, but the line remained busy. In the evening, Zhejiang Rongtai issued an announcement stating: "The company's stock closing price deviation has cumulatively exceeded 20% over three consecutive trading days. According to relevant provisions of the Shanghai Stock Exchange Trading Rules, this constitutes abnormal stock trading fluctuation. After verification, the company's production and operation activities remain normal, financial condition is stable, cash flow is healthy, and there have been no significant changes in internal or external operating environment. Neither the company nor its controlling shareholders and actual controllers have any material information that should be disclosed but has not been disclosed, including but not limited to major asset restructuring, share issuance, major transactions, business reorganization, share buyback, equity incentives, bankruptcy reorganization, major business cooperation, introduction of strategic investors and other major matters. We respectfully remind investors to pay attention to secondary market trading risks, make rational decisions, and invest prudently."
Additionally, when responding to today's "Tesla Motors rumors," Zhejiang Rongtai stated: "We are aware of the aforementioned rumors but cannot confirm their source and accuracy. The company is indeed a Tesla Motors supplier, and bilateral cooperation and communication are relatively close, but the company did not have any relevant meetings or news releases this morning."
Regarding Tesla Motors' robot production capacity data, Zhejiang Rongtai indicated that relevant cooperation data is confidential and inconvenient to disclose, and stakeholders should pay attention to company announcements for specific information.