Shaanxi chenyu Biological Engineering Co.,Ltd. was established in 2009, is the oldest in Northwest China plant extract manufacturers. Have their own professional R & D team.Main products are nicotine and tobacco flavors. We produce nicotine through the national ISO9001 quality certification pharmaceutical grade product can be achieved.Our Products are exported around the world, occupying 47% of the Russian market.we have high-quality products and good reputation, look forward to your cooperation.