---
title: "GCS tech: Tianan Chemical phosgene and phosgenation device safety and environmental upgrade and transformation project trial production"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/243078415.md"
description: "According to the announcement from GCS tech, the company's controlling subsidiary Tianan Chemical has completed the connection work between the new and existing facilities. The construction of the 20,000 tons/year phosgene and phosgenation facility's safety and environmental upgrade project has been completed and has entered the trial production stage, while other production facilities have resumed normal production operations"
datetime: "2025-06-04T10:20:03.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/243078415.md)
  - [en](https://longbridge.com/en/news/243078415.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/243078415.md)
---

> Supported Languages: [简体中文](https://longbridge.com/zh-CN/news/243078415.md) | [繁體中文](https://longbridge.com/zh-HK/news/243078415.md)


# GCS tech: Tianan Chemical phosgene and phosgenation device safety and environmental upgrade and transformation project trial production

According to the Zhitong Finance APP, GCS tech (002453.SZ) announced that its holding subsidiary Tianan Chemical has completed the connection work between the new and existing facilities. The construction of the 20,000 tons/year phosgene and phosgenation facility safety and environmental upgrade project has been completed and has entered the trial production stage, while other production facilities have resumed normal production operations

### Related Stocks

- [GCS tech (002453.CN)](https://longbridge.com/en/quote/002453.CN.md)
- [Environment Protection (20030.HK)](https://longbridge.com/en/quote/20030.HK.md)

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