Ua hoʻokumu ʻia ʻo Tiandeli Co., Ltd i ka makahiki 2007, ʻo Tianjin New Port ka mea nui loa i lawe mai a lawe aku i nā kikowaena huahana ma North China a me Northwest China.Hāʻawi nui ʻo Tiandeli Co., Ltd i ka sodium sulfide, sodium hydrosulfide a me nā huahana series.ʻO nā huahana i luna a mākou e manaʻo ai, ua hōʻoia ʻia e SGS, BV, FAMI-QS …… Me 16 mau makahiki e hoʻopuka ana i ka ʻike, e pili ana i ka hiki ke hoʻopuka ikaika, ua loaʻa iā Tiandeli kahi pilina paʻa me nā mea kūʻai aku o ka honua.
ʻO kā mākou nūhou, ka ʻike hou loa e pili ana i kā mākou huahana, nā nūhou a me nā makana kūikawā.
Kaomi no ka manualʻO kā mākou huahana a mākou e nānā ai, ua hōʻoia ʻia e SGS, BV, FAMI-QS ......
"ʻO ke kūlana kiʻekiʻe, ka lawelawe maikaʻi loa, ke kumu kūʻai kūpono" ʻo ia nā pono mākeke ʻekolu o kā mākou hui.
ʻAʻole kūʻai maikaʻi wale ʻia ma Kina, akā kūʻai ʻia aku i ka Hikina Hema ʻo Asia, ka Middle East, India a me Pakistan, ʻApelika, Australia, ʻAmelika Hema a pēlā aku.