The main raw material used in our production is pet, which is used in the production of bottle body. In 2017, 2018 and<br>In 2019, the cost of pet is RMB 2228 million, RMB 3044 million and RMB 3382 million respectively,<br>Of our total cost of sales 29% , 31.9% and 31.6% 。 In addition to raw materials, we also need cartons<br>Label, shrink film and other packaging materials. In 2017, 2018 and 2019, packaging materials accounted for our sales respectively<br>Of total cost 31.4% , 31.1% and 31.5% 。<br>
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