---
title: "002491.SZ (002491.SZ) — Related News"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/002491.SZ/news.md"
symbol: "002491.SZ"
name: "002491.SZ"
parent: "https://longbridge.com/en/quote/002491.SZ.md"
datetime: "2026-03-03T15:18:55.918Z"
locales:
  - [en](https://longbridge.com/en/quote/002491.SZ/news.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/002491.SZ/news.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/002491.SZ/news.md)
---

> Supported Languages: [简体中文](https://longbridge.com/zh-CN/quote/002491.SZ/news.md) | [繁體中文](https://longbridge.com/zh-HK/quote/002491.SZ/news.md)


# 002491.SZ (002491.SZ) — Related News

### [TDii: The proportion of optical fiber products used for data centers is relatively small, and currently, it does not engage in CPO-related businesses](https://longbridge.com/en/news/277602382.md)
*2026-03-03T10:16:07.000Z*
> TDii released a notice of unusual movement, stating that the company has noticed a high level of market attention on the

### [Optical fiber concept stocks are repeatedly active, TDii hits the limit up](https://longbridge.com/en/news/277545789.md)
*2026-03-03T01:44:19.000Z*
> Optical fiber concept stocks are repeatedly active, RoboTechnik, JPT, YUANJIE SEMICONDUCTOR, and Hangzhou Cables hit new

### [TDii rose 5.00% today, with 4 institutional special seats net selling 186 million yuan](https://longbridge.com/en/news/277428881.md)
*2026-03-02T08:25:25.000Z*
> TDii rose 5.00% today, with a transaction amount of 3.004 billion yuan and a turnover rate of 22.95%. According to the a

### [Jingding's EPS last year was 21.44 yuan, with a dividend of 11 yuan. Chen Weiming took over as chairman](https://longbridge.com/en/news/277015259.md)
*2026-02-26T09:30:44.000Z*
> JingDing (3413) announced its financial report for last year, with a net profit of NT$ 21.44 per share, a year-on-year d

### [The optical fiber concept is repeatedly active, Zhongtian Technology hits the limit up and creates a historical new high](https://longbridge.com/en/news/276968046.md)
*2026-02-26T01:48:18.000Z*
> The optical fiber concept has been repeatedly active recently, with ZTT hitting the daily limit and reaching a historic 

### [Optical fiber concept stocks continue to strengthen, YOFC hits the limit up and reaches a new high](https://longbridge.com/en/news/276671867.md)
*2026-02-24T02:16:42.000Z*
> Optical fiber concept stocks continue to strengthen, YOFC hits the limit up and sets a new high, YCIG previously hit the

### [High-level AI applications and new production capacity injection accelerate ZhenDing's growth in 2026](https://longbridge.com/en/news/275879435.md)
*2026-02-13T09:36:46.000Z*
> Global PCB leader ZhenDing (4958) held its year-end gratitude party on the 13th, and Chairman Shen Qingfang stated that 

### [Intraday News - Qian Ding (4908) surged 3.12% to report 76.0 yuan, with a transaction of 323 shares](https://longbridge.com/en/news/274903659.md)
*2026-02-05T02:37:42.000Z*
> The stock price of QianDing (4908-TW) rose by 3.12% at 10:37 on the 5th, reporting at NT$76.0, with a trading volume of 

### [Guotai Haitong: The price increase trend in the optical fiber industry is clear, focusing on the change opportunities from 0-1 in CPO/OIO](https://longbridge.com/en/news/274724405.md)
*2026-02-03T22:51:57.000Z*
> Guotai Haitong released a research report indicating that the price increase trend in the optical fiber industry is evid

### [TDii and others establish a materials technology company](https://longbridge.com/en/news/274616073.md)
*2026-02-03T07:38:33.000Z*
> According to the Qichacha APP, Jiangsu Dingchun Material Technology Co., Ltd. has been established, with Li Xiangyu as t