FSC:Ningbo Yawen International Trading Co., Ltd e lumellana le litlhoko tsa FSC tsa ketane ea tlhokomelo mabapi le ho reka le ho rekisa lihlahisoa tsa patsi, bamboo le pampiri (FSC 100%, FSC e tsoakiloeng, FSC Recycled).Tlhahlobo e ne e itšetlehile ka maemo a tloaelehileng: FSC-STD-40-004 v. 3.0 FSC Standard for Chain of custody Certification.
GRS:Ningbo Yawen International Trading Co.,Ltd e lumellana le Global Recycled Standard(GRS) Version 4.0 e hlahlobiloeng ke ECOCERT GREENLIFE SAS.Likarolo tsa lihlahisoa joalo ka ha li boletsoe ka tlase (le tse boletsoeng hape sehlomathisong sa sehlahisoa) li lumellana le maemo a: Dyed Fabrics(PC0025).Likarolo tsa ts'ebetso li nkile boikarabello ba mokhatlo o boletsoeng ka holimo bakeng sa lihlahisoa tse netefalitsoeng tse koahelang Khoebo (PR0030).
TUV e netefalitsoe:Ningbo Yawen International Trading Co., Ltd e netefalitsoe ke TUV Rheinland e le Mofani oa Khauta ho Alibaba.
