---
title: "The robotics concept fluctuates and falls back, Zhejiang Rongtai hits the limit down"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/255875110.md"
description: "The robotics concept fluctuated and fell during the trading session, with Zhejiang Rongtai hitting the limit down, Lingyun Optics and Swancor Advanced Materials dropping over 10%, and multiple stocks such as Ningbo Huaxiang, Zhejiang Haideman, Sunny Optical, and Leaderdrive falling over 5%"
datetime: "2025-09-04T02:33:30.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/255875110.md)
  - [en](https://longbridge.com/en/news/255875110.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/255875110.md)
---

# The robotics concept fluctuates and falls back, Zhejiang Rongtai hits the limit down

The robotics concept fluctuated and fell during the trading session, with Zhejiang Rongtai hitting the limit down, Lingyun Guang and Swancor Advanced Materials dropping over 10%, and multiple stocks including Ningbo Huaxiang, Zhejiang Haideman, SUNNY OPTICAL, and Leaderdrive falling over 5%

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- [02382.HK](https://longbridge.com/en/quote/02382.HK.md)

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