FSC:Ua kūlike ʻo Ningbo Yawen International Trading Co., Ltd me nā koi FSC o ke kaulahao o ka mālama ʻana e pili ana i ke kūʻai ʻana a me ke kūʻai aku ʻana i nā huahana lāʻau, ʻohe a me nā huahana pepa (FSC 100%, FSC i hui pū ʻia, FSC Recycled). Ua hoʻokumu ʻia ka loiloi ma ke kūlana: FSC-STD-40-004 v. 3.0 FSC Standard no ka Palapala Hōʻoia Kaulahao o ka Mālama.
GRS:Ua kūlike ʻo Ningbo Yawen International Trading Co., Ltd me ka Global Recycled Standard (GRS) Version 4.0 i loiloi ʻia e ECOCERT GREENLIFE SAS. Ua kūlike nā ʻano huahana e like me ka mea i ʻōlelo ʻia ma lalo nei (a ua kuhikuhi hou ʻia ma ka pākuʻi huahana) me nā kūlana: Nā lole i hoʻoluʻu ʻia (PC0025). Ua lawe ʻia nā ʻano hana ma lalo o ko mākou kuleana o ka hui i ʻōlelo ʻia ma luna no nā huahana i hōʻoia ʻia e uhi ana i ke kālepa ʻana (PR0030).
Ua hōʻoia ʻia ʻo TUV:Ua hōʻoia ʻia ʻo Ningbo Yawen International Trading Co., Ltd e TUV Rheinland ma ke ʻano he mea hoʻolako gula ma Alibaba.
