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ABOUT
History
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关于公司为子公司提供担保的进展公告
2025-04-08
2022
2022-03-15
In March 2022, Yichang Electronic Special Gas and Functional Materials Industrial Park was built with an investment of 5 billion yuan in Yichang Chemical Industry Park.
关于公司取得发明专利证书的公告
2025-04-09
Hubei Heya Environmental Technology Co., Ltd.
2023-03-10
关于宜昌电子特气及功能性材料产业园项目的进展公告
2025-04-09
Hubei Heyuan Gas Transportation Co., Ltd.
2023-03-10
关于公司为子公司提供担保的进展公告
2025-04-22
Hubei Heyuan Gas Sales Co., Ltd.
2023-03-10
关于股东减持股份的预披露公告
2025-04-22
Yichang Lantian Gas Co., Ltd.
2023-03-10
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