Yuyao Kary Co., Ltd (arjextools) ali pafupifupi zaka 20 zinachitikira mu ndime ngolo ndi galimoto Chalk munda chikhazikitsireni maziko mu 1998. kampani yathu ili mu nyanja mumzinda wa Yuyao, Province Zhejiang, amene ali ndi traffics yabwino kwambiri: yekha zimatenga ola limodzi kwa dalaivala kuti Ningbo ndi Xiaoshan Airport, maola awiri ndege Shanghai PVG.
Tili fakitale imodzi inali ku Zone Yangming mafakitale ndi ofesi imodzi yomwe ili mu mzinda. fakitale athu akupeza zinthu ngolo ndi zina galimoto ndi njinga Chalk.