FSC:Ningbo Yawen International Trading Co., Ltd ni ibamu pẹlu awọn ibeere FSC ti pq atimọ ni ọwọ ti rira ati tita igi, oparun ati awọn ọja iwe (FSC 100%, FSC adalu, FSC Tunlo).Idiyele naa da lori boṣewa: FSC-STD-40-004 v. 3.0 FSC Standard fun Ẹwọn Ijẹrisi Itọju.
GRS:Ningbo Yawen International Trading Co., Ltd ni ibamu pẹlu Agbaye Tunlo Standard(GRS) Ẹya 4.0 ti a ṣe ayẹwo nipasẹ ECOCERT GREENLIFE SAS.Awọn ẹka ọja gẹgẹbi a ti mẹnuba ni isalẹ (ati siwaju sii ni pato ninu afikun ọja) ni ibamu pẹlu awọn iṣedede: Awọn aṣọ Didi(PC0025).Awọn ẹka ilana gbe wa labẹ ojuse ti agbari ti a mẹnuba loke fun Iṣowo ọja ti a fọwọsi (PR0030).
Ifọwọsi TUV:Ningbo Yawen International Trading Co., Ltd jẹ idaniloju nipasẹ TUV Rheinland gẹgẹbi Olupese Gold lori Alibaba.
