History

current location: HOME > ABOUT US > History
2017,Obtained the Certificate of ISO 14001:2015 Environmental Management System and the Certificate of OHSAS 18001:2007 Health and Safety Management System.  

2015, HTS-2 Deep Purification Fine Desulfurizer was exported to Taiwan for the first time.

2016,Awarded “Outstanding New Materials Company of Hunan Province” by Hunan Economic and Information Technology Commission.

2013, Co-developed, manufactured and began sales of HTS-2 Deep Purification Fine Desulfurizer.


2009, Obtained the Certificate of ISO 9001:2008 Quality Management System. Awarded “High-Tech & Innovative Company” by the Ministry of Sci-Tech in China.


2007, Co-developed, manufactured and began sales of EH-2 Sulfur-Tolerant Hydrolysis Catalyst and DJ-1 Multi-Purposes Purification Catalyst.

2006, Moved to Liuyang High-Tech Industrial Development Park.

2003, Changed company name to Hunan Huanda Environmental Protection Co.,Ltd.

2001, T703 Ferric Oxide Fine Desulfurizer was exported to the U.S for the first time, EZ-2 Wide-Temperature Zinc Oxide Fine Desulfurizer was exported to the U.K. for the first time.

2000, EAC-6 RSH & RSSR-Removal Fine Desulfurizer was exported to the U.S. and the U.K. for the first time.

1996, Co-developed, manufactured and began sales of EZ-2 Wide-Temperature Zinc Oxide Fine Desulfurizer.

1994, Co-developed, manufactured and began sales of EAC-6 RSH & RSSR-Removal Fine Desulfurizer.

1993, Co-developed, manufactured and began sales of T703 Ferric Oxide Fine Desulfurizer ,DS-1 Composite Oxides Fine Desulfurizer and T504 COS Hydrolysis Catalyst.

1991, Co-developed, manufactured and began sales of T102 Activated Carbon Fine Desulfurizer and T104 Activated Carbon Fine Desulfurizer.

1989, Began collaboration with Hubei Research Institute of Chemistry(HRIC) , which remains as our key partner ever since.

1979, Established as Changsha Wangyue Chemicals Factory, which manufactured, sold and distributed cobalt acetate, cobalt sulfate and ammonium molybdate.


Please note we only show the first time export of our products here.