---
title: "300252.SZ (300252.SZ) — Related News"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/300252.SZ/news.md"
symbol: "300252.SZ"
name: "300252.SZ"
parent: "https://longbridge.com/en/quote/300252.SZ.md"
datetime: "2026-05-21T06:25:16.979Z"
locales:
  - [en](https://longbridge.com/en/quote/300252.SZ/news.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/300252.SZ/news.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/300252.SZ/news.md)
---

# 300252.SZ (300252.SZ) — Related News

### [Kingsignal: In 2025, the gross profit margin of the PCB business will turn to -5.9%, and the operating conditions continue to improve](https://longbridge.com/en/news/287142323.md)
*2026-05-21T01:48:44.000Z*
> Kingsignal stated at the performance briefing that the gross margin of its PCB business will improve from -22.82% in 202

### [Kingsignal: The company currently has no optical fiber preform business](https://longbridge.com/en/news/284154200.md)
*2026-04-27T04:56:40.000Z*
> On April 27th, Kingsignal stated on the interactive platform that the company currently has no optical fiber preform bus

### [Market Update - Shenzhen Index rose by 270.21 points to 13806.7644 points, an increase of 2%](https://longbridge.com/en/news/280417550.md)
*2026-03-25T05:37:26.000Z*
> As of 01:22 Taipei time on the 25th, the Shenzhen Index rose by 270.21 points (or 2%), currently reported at 13,806.76 p

### [](https://longbridge.com/en/news/277570481.md)
*2026-03-03T06:21:44.000Z*
> The A-share 6G sector fluctuated and weakened, with Sunwave hitting the limit down, SUNWAY COMM and CICT MOBILE falling 

### [Kingsignal: The company's satellite-based UPF product development project is to develop a satellite communication-based UPF product](https://longbridge.com/en/news/275562605.md)
*2026-02-11T06:41:15.000Z*
> On February 11th, Kingsignal stated on the interactive platform that the company's "Satellite-based UPF Product R&D" pro

### [The 6G sector underwent significant adjustments, with Sunwave falling to its limit](https://longbridge.com/en/news/273019726.md)
*2026-01-20T02:24:55.000Z*
> The 6G sector underwent significant adjustments, with Sunwave hitting the limit down, and Haige Communications, Shenglu 

### [PCB concept sector experiences a short-term surge](https://longbridge.com/en/news/272502853.md)
*2026-01-14T05:34:30.000Z*
> The PCB concept sector saw a short-term surge, with Han's CNC, Cube Holdings, and ALLFAVOR rising over 10%. DingTai GaoK

### [](https://longbridge.com/en/news/272348993.md)
*2026-01-13T02:34:41.000Z*
> The A-share F5G concept has weakened during the pullback, Kingsignal has fallen over 10%, SDGI has dropped over 7%, and 

### [Kingsignal: Ganzhou Development's shareholding ratio has decreased to 4.999999%](https://longbridge.com/en/news/270987928.md)
*2025-12-29T11:25:10.000Z*
> Kingsignal announced that Ganzhou Development Investment Holding Group has reduced its shareholding in the company, with

### [Kingsignal: Plans to engage in hedging business for Shanghai copper and Shanghai tin futures not exceeding 200 million yuan](https://longbridge.com/en/news/268424635.md)
*2025-12-03T12:11:41.000Z*
> Kingsignal announced that the company plans to carry out hedging business for Shanghai copper and Shanghai tin futures t