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  • May of 2000, Puyang Greenoil Petroleum Engineering Technology Co Ltd established

  • May of 2001, Greenoil Petroleum Technology Servicing Co Ltd established

  • October of 2014, New R&D Center and Production facility Launched in Puyang, and, Greenoil awarded as New & High-tech enterprise in Beijing

  • December of 2015, Greenoil stocks officially launched and traded in the National Equities Exchange and Quotations

  • May of 2016, Henan Greenoil Environmental Technology Co Ltd established

  • December of 2016, Puyang Greenoil awarded as New & High-tech enterprise in Henan