---
title: "300421.SZ (300421.SZ) — Related News"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/300421.SZ/news.md"
symbol: "300421.SZ"
name: "300421.SZ"
parent: "https://longbridge.com/en/quote/300421.SZ.md"
datetime: "2026-05-20T11:50:42.134Z"
locales:
  - [en](https://longbridge.com/en/quote/300421.SZ/news.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/300421.SZ/news.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/300421.SZ/news.md)
---

# 300421.SZ (300421.SZ) — Related News

### [JGBR released its first-quarter performance, with a net profit attributable to the parent company of 7.0546 million yuan, a decrease of 58.82%](https://longbridge.com/en/news/284397483.md)
*2026-04-28T14:17:08.000Z*
> JGBR released its first quarter report for 2026, with operating revenue of 266 million yuan, a year-on-year increase of 

### [JGBR: Net profit of 69.2167 million yuan in 2025, a year-on-year increase of 25.32%](https://longbridge.com/en/news/284343527.md)
*2026-04-28T09:30:50.000Z*
> JGBR announced that the operating revenue in 2025 is expected to be 1.109 billion yuan, a year-on-year increase of 6.17%

### [The humanoid robot concept is partially active, BCDC hits the limit up](https://longbridge.com/en/news/278478817.md)
*2026-03-10T02:34:35.000Z*
> The humanoid robot concept is partially active, BCDC hits the limit up, Fenglong, WOLONG ELECTRIC, WXQC, and JGBR follow

### [JGBR: Silicon nitride ceramic ball-related products can be applied in high-end equipment and special fields](https://longbridge.com/en/news/277429496.md)
*2026-03-02T08:25:50.000Z*
> On March 2nd, JGBR stated on the interactive platform that silicon nitride ceramic ball-related products can be applied 

### [China National Chemical Corporation's subsidiary Bluestar strategically acquires Aiken's silicone business assets](https://longbridge.com/en/news/275895537.md)
*2026-02-13T12:01:37.000Z*
> On February 13th, China National Chemical Corporation's subsidiary China BlueStar Co., Ltd. announced the signing of an 

### [](https://longbridge.com/en/news/275406960.md)
*2026-02-10T05:45:04.000Z*
> The concept of humanoid robots in the A-share market continued to be active in the afternoon, with WXQC hitting the dail

### [A-share private placement overview: Today, 3 companies disclosed the progress of their private placements](https://longbridge.com/en/news/274060949.md)
*2026-01-28T23:54:07.000Z*
> On January 29th, a total of 3 companies in the A-share market announced private placement plans, of which 2 disclosed pr

### [JGBR: Plans to raise no more than 560 million yuan through a private placement](https://longbridge.com/en/news/273988435.md)
*2026-01-28T12:19:49.000Z*
> JGBR announced that the company plans to issue A shares to specific targets, with the number of shares not exceeding 88.