Hongyuan Growth process Concentric gather low consumption of environmental protection and high quality and win-win cooperation The construction started in May 2011 with a registered capital of 20 million yuan; In 2012, it passed ISO9001-2008 quality management assurance system and ISO14001 environmental management system certification; In April 2013, it was approved by Binzhou Environmental Protection Bureau of Shandong Province; In December 2013, it was approved by Binzhou Safety Supervision Bureau of Shandong Province for completion acceptance of safety facilities; In January 2014, the company obtained the work safety license |