Guangtong Group Shandong Guangtongbao PharmaceuticalsCo.,Ltd  is the largestmanufacturer of chlorophyll series products and vitamink1 series products.       Shandong GuangtongbaoPharmaceuticals Co.,Ltd. started to makeresearch on chlorophyll series products from the 70s. After nearlyforty years efforts, we now have developedseveral series and more than a dozen varieties, i.e. chlorophyllpaste, oil-soluble chlorophyll, sodium copper chlorophyllin,sodium magnesium chlorophyllin, sodium ferrous chlorophyllin,sodium zinc chlorophyllin, vitamin k1oil,vitamin k1 powder, vitamink1 oxide, vitamin D3, natural phytol and 2,6-diphenyl phenol, etc.,all the products possess drugs or food production qualification.Our company became a leading enterprise with the most corecompetitiveness which lead the development direction of globalchlorophyll and vitamin K1 industry.