---
title: "A-share Market Close: GEM Index Recovers from Lows to Rise 0.31%; Industrial Gas and Copper Foil Concepts Surge Collectively"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/283451734.md"
description: "The A-share market recovered from early lows to close higher, with all three major indices posting modest gains. Industrial gas and copper foil concept stocks performed strongly, with Huate Gas, JINHONG GAS, G-gas, Fangbang Co.,Ltd, and Enpack all hitting their daily limit up. Optical communication concept stocks also showed activity, as TKD and QSZY reached their limits. Despite the overall advance, computing power and liquid cooling concept stocks declined; the Shanghai Composite rose 0.07%, the Shenzhen Component gained 0.1%, and the GEM Index advanced 0.31%"
datetime: "2026-04-21T07:02:37.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/283451734.md)
  - [en](https://longbridge.com/en/news/283451734.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/283451734.md)
---

# A-share Market Close: GEM Index Recovers from Lows to Rise 0.31%; Industrial Gas and Copper Foil Concepts Surge Collectively

The market recovered from early lows to close higher throughout the day, with all three major indices posting modest gains. The industrial gas concept strengthened, with Huate Gas hitting its 20% limit up, while JINHONG GAS and G-gas surged over 10%. Copper foil concept stocks rallied, with Fangbang Co.,Ltd and Enpack reaching their daily limit up. The optical communication concept remained active intermittently, as TKD and QSZY hit their limits. On the downside, computing power and liquid cooling concept stocks declined, with Envicool and Shengyang Shares falling to their daily limit down. Individual stocks saw more declines than advances, with over 3,400 stocks trading lower across the Shanghai, Shenzhen, and Beijing exchanges. Today's total trading volume exceeded 2.42 trillion yuan. At market close, the Shanghai Composite rose 0.07%, the Shenzhen Component gained 0.1%, and the GEM Index advanced 0.31%.

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