Our History 2002 As the predecessor of Tengyu Huangxing factory was established, Providing door hardwares’ machining service for local trading company. 2008 Ningbo Tengyu was formally established, Open committed to R&D, manufacturing, sales of our own door system products. 2009 Passed ISO9001 quality system. Cooperation with Kingfisher. 2010 Obtain the 1st Utility. Patent Certificate. 2011 Move to a new plant. Obtained FSC certificate. 2012 Passed BSCI audit. 2013 Developed and produced barn door hardware, Cooperation with The Home Depot. 2014 Cooperation With OBI. 2016 Move to a new plant. 2018 Passed ISO14001:2015 & OHSAS18001. Rated as a National High-Tech Enterprise. 2019 Start to design and produce metal frame glass door & window. 2020 The new factory is under construction.