---
title: "300721.SZ (300721.SZ) — Related News"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/300721.SZ/news.md"
symbol: "300721.SZ"
name: "300721.SZ"
parent: "https://longbridge.com/en/quote/300721.SZ.md"
datetime: "2026-05-19T17:36:25.659Z"
locales:
  - [en](https://longbridge.com/en/quote/300721.SZ/news.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/300721.SZ/news.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/300721.SZ/news.md)
---

# 300721.SZ (300721.SZ) — Related News

### [YIDA: Stock trading has experienced abnormal fluctuations for two consecutive days, and there are no undisclosed matters that should be disclosed](https://longbridge.com/en/news/286536456.md)
*2026-05-15T09:07:18.000Z*
> YIDA announced that the closing price of the company's stock on May 14 and May 15, 2026, deviated by more than 30% over 

### [YIDA released its first-quarter performance, turning a loss into a profit of 4.3096 million yuan](https://longbridge.com/en/news/284204523.md)
*2026-04-27T11:24:06.000Z*
> YIDA released its first quarter performance report for 2026, with operating revenue of 548 million yuan, a year-on-year 

### [YIDA: Net profit in the first quarter was RMB 2.2273 million, turning a profit compared to a loss in the same period last year](https://longbridge.com/en/news/284178113.md)
*2026-04-27T08:38:57.000Z*
> YIDA announced that its revenue for the first quarter of 2026 was 548 million yuan, a year-on-year increase of 64.92%; n

### [YIDA: Net loss of 109 million yuan in 2025](https://longbridge.com/en/news/284178107.md)
*2026-04-27T08:38:56.000Z*
> YIDA announced that the operating revenue in 2025 is expected to be 1.596 billion yuan, a year-on-year decrease of 9.74%

### [YIDA: The revenue share of electronic-grade propylene glycol methyl ether and electronic-grade propylene glycol methyl ether acetate is relatively small](https://longbridge.com/en/news/283977195.md)
*2026-04-24T10:04:28.000Z*
> YIDA announced that due to the stock price increasing by more than 30% for two consecutive days on April 23 and 24, it c

### [April 24, 2026 Lithium Battery Concept Limit-Up Summary](https://longbridge.com/en/news/283969312.md)
*2026-04-24T09:16:41.000Z*
> On April 24, 2026, the lithium battery concept sector experienced a surge in limit-up stocks due to positive news, with 

### [The demand for AI infrastructure ignites the storage market, and the global semiconductor industry surges](https://longbridge.com/en/news/283762076.md)
*2026-04-23T01:44:12.000Z*
> On April 23rd, the A-share semiconductor materials concept was active, with YIDA and BCC hitting the daily limit. The US

### [The semiconductor materials concept opened actively, with YIDA and BCC both hitting the daily limit](https://longbridge.com/en/news/283746743.md)
*2026-04-23T01:34:04.000Z*
> The semiconductor materials concept opened actively, YIDA hit the 20% limit up, BCC reached the limit up, and Glinda, To

### [](https://longbridge.com/en/news/283746537.md)
*2026-04-23T01:31:25.000Z*
> Lithography machine and lithographic resist concept stocks showed active trading at the open. YIDA and BCC hit the limit