▁The ▁ad ▁triggered ▁a ▁vir al ▁response ▁online , ▁causing ▁the ▁phrase ▁" when ▁e aten ▁it ▁has ▁a ▁bis c uit ▁flav our " ▁() ▁to ▁become ▁syn onymous ▁with ▁the ▁K oi ▁Ke i ▁brand . ▁ ▁Sp ons or ships ▁ ▁Since ▁ 2 0 1 0 , ▁K oi ▁Ke i ▁has ▁spons ored ▁many ▁TV B ▁produ ctions ▁such ▁as ▁Gun ▁Metal ▁Grey ▁and ▁Lord ▁of ▁Shang hai . ▁The ▁ 2 0 1 3 ▁TV B ▁drama ▁Bro ther ' s ▁K ee per ▁is ▁based ▁on ▁the ▁story ▁of ▁K oi ▁Ke i ▁b ak ery . ▁Ed win ▁S iu ▁was ▁cast ▁as ▁a ▁character ▁based ▁off ▁Le ong ▁Chan - K u ong , ▁the ▁company ' s ▁founder , ▁and ▁Krist al ▁T in ▁was ▁cast ▁as ▁K oi ▁Ke i ' s ▁general ▁manager . ▁Ed win ▁S iu ▁has ▁since ▁become ▁a ▁brand ▁amb assador ▁for ▁K oi ▁Ke i . ▁ ▁Main land ▁China ▁tra dem ark ▁issues ▁ ▁In ▁recent ▁years ▁there ▁have ▁been ▁many ▁cases ▁where ▁the ▁K oi ▁Ke i ▁tra dem ark ▁was ▁being ▁fra ud ul ently ▁used ▁in ▁Main land ▁China ▁and ▁other ▁places . ▁K oi ▁Ke i ▁has ▁since ▁brought ▁the ▁issue ▁to ▁the ▁Chinese ▁courts . ▁Although ▁the ▁company ▁has ▁been ▁to ▁China ▁for ▁many ▁exhib itions , ▁the ▁company ▁has ▁not ▁expanded ▁into ▁Main land ▁China . ▁These ▁issues ▁were ▁dep icted ▁in ▁the ▁ 2 8 th ▁episode ▁of