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2016 in March to become China Datang Group procurement platform for qualified suppliers
2016 in February to become the National Electric Investment Group Southern Limited (morning-sourcing procurement platform) qualified suppliers
January 2016 won the Huadian Group Corporation tender and procurement network approved the "group members"
August 2015 and the Yangtze River power electronic business system cooperation
January 2015 won the Huadian Corporation of the tender and procurement network approved the "power plant level 1 +6 supplier membership certificate"
December 2014 passed the ISO9001: 2008 quality system certification
May 2014 and Huaneng electricity business platform, Huadian Tendering and procurement network to win cooperation
May 2013 Germany SOROTHURN incorporated in Kunming, China