Ka maikaʻi
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2020's
2023, Nā mea hoʻoheheʻe wahie PEM ua hoʻomohala maikaʻi ʻia a hana ʻia ma ka nui.
2021, Haawiia ka "Ke kikowaena ʻenehana kūloko o ka ʻoihana" e ke Keena Hana Hana a me ka ʻIke ʻIke ʻOihana o Hunan.
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2010's
2019, Haawi mai i ka "Ke kikowaena noiʻi ʻenehana ʻenehana o ka ʻoihana ʻenehana" e ka Bureau of Sci-Tech o ke kūlanakauhale ʻo Changsha.
2017, Loaʻa ka palapala hōʻoia o ISO 14001: 2015 Pūnaehana hoʻokele kaiapuni a me ka palapala hōʻoia o OHSAS 18001: 2007 Pūnaehana hoʻokele olakino a palekana.
2016, Hāʻawi ʻia “Ka Hui Mea Hou Hou o ka Panalaau o Hunan” na Hunan Economic and Information Technology Commission.
2015, HTS-2 Deep Purification Fine Desulfurization Catalyst i lawe ʻia i Taiwan no ka manawa mua.
2013, Hoʻokumu pū, hana a hoʻomaka i ke kūʻai aku o HTS-2 Deep Purification Fine Desulfurization Catalyst.
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2000's
2009, Loaʻa ka palapala hōʻoia o ISO 9001: 2008 Pūnaehana hoʻokele maikaʻi. Hāʻawi ʻia "Ka Hui ʻenehana kiʻekiʻe a me nā mea hou" e ke Kuhina o Sci-Tech ma Kina.
2007, Hoʻomohala pū, hana a hoʻomaka i ke kūʻai aku o EH-2 Sulfur-Tolerant Hydrolysis Catalyst a me DJ-1 Multi-Purposes Purification Catalyst.
2006, Neʻe i Liuyang High-Tech Industrial Development Park.
2003, Hoʻololi i ka inoa hui i Hunan Huanda Environmental Protection Co., Ltd.
2001, T703 Ferric Oxide Fine Desulfurization Catalyst i lawe ʻia aku i ka US no ka manawa mua, EZ-2 Wide-Temperature Zinc Oxide Fine Desulfurization Catalyst i lawe ʻia i UK no ka manawa mua.
2000, EAC-6 RSH & RSSR-Removal Fine Desulfurization Catalyst i lawe ʻia aku i U.S. a me UK no ka manawa mua.
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1990's
1996, Hoʻomohala pū, hana a hoʻomaka i ke kūʻai aku o EZ-2 Wide-Temperature Zinc Oxide Fine Desulfurization Catalyst.
1994, Hoʻomohala pū, hana a hoʻomaka i ke kūʻai aku o EAC-6 RSH & RSSR-Removal Fine Desulfurization Catalyst.
1993, Hoʻomohala pū, hana a hoʻomaka i ke kūʻai aku o T703 Ferric Oxide Fine Desulfurization Catalyst, DS-1 Composite Oxides Fine Desulfurization Catalyst a me T504 COS Hydrolysis Catalyst.
1991, Hoʻomohala pū, hana a hoʻomaka i ke kūʻai aku o T102 Activated Carbon Fine Desulfurization Catalyst a me T104 Activated Carbon Fine Desulfurization Catalyst.
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1980's
1989, Hoʻomaka i ka hui pū ʻana me Hubei Research Institute of Chemistry(HRIC) , ka mea e mau nei ma ke ʻano he hoa kī nui mai ia manawa mai.
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1970's
1979, Hoʻokumu ʻia ʻo Changsha Wangyue Chemicals Factory, nāna i hana, kūʻai aku a hāʻawi i ka cobalt acetate, cobalt sulfate a me ka ammonium molybdate.
E ʻoluʻolu e hoʻomaopopo: Ua hōʻike wale mākou i ka lawe mua ʻana i kā mākou huahana ma aneʻi.
palapala
ʻO ka palapala hōʻoia o OHSAS 18001: 2007 Health and Safety Management System, Certificate No.: 05317S20003R0M.
ʻO ka palapala hōʻoia o ISO 14001: 2015 Environmental Management System, Palapala No.: NGV17E30001R0M.
ʻO ka palapala hōʻoia o ISO 9001: 2008 Quality Management System, Palapala No.: 05315Q20769R1M.