Stock polyphenylene oxide (PPO) 
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 Name Type Level Origin / Manufacturer Price (yuan / ton) 
 PPO 731-701 General Purpose U.S. GE 28500 yuan / ton 
 PPO 731 General Purpose U.S. GE 30600 yuan / ton 
 PPO GFN1720 General Purpose U.S. GE 40700 yuan / ton 
 PPO 540Z injection level of Asahi Kasei 20,800 yuan / ton 
 PPO G702V injection level of Asahi Kasei 21,600 yuan / ton 
 PPO GFN1720-780 injection-level U.S. GE 28000 yuan / ton 
 PPO GFN2-701 injection-level U.S. GE 20800 yuan / ton 
 PPO GFN2-801 injection-level U.S. GE 31600 yuan / ton 
 PPO PX1005X injection level U.S. GE 23200 yuan / ton 
 PPO PX1180-701 injection-level U.S. GE 23600 yuan / ton 
 PPO PX9406 GE 23600 U.S. Injection Grade yuan / ton 
 PPO SE100X injection level U.S. GE 24300 yuan / ton 
 PPO SE1X injection level U.S. GE 24300 yuan / ton 
 PPO GFN2-N780S glass fiber reinforced grade U.S. GE 23600 yuan / ton 
 PPO GFN3-701 glass fiber reinforced grade U.S. GE 31600 yuan / ton 
 PPO GFN3-780 glass fiber reinforced grade U.S. GE 31600 yuan / ton 
 PPO GFN3-801 glass fiber reinforced grade U.S. GE 31600 yuan / ton 
 PPO SE1GFN1 glass fiber reinforced grade U.S. GE 30600 yuan / ton 
 PPO SE1GFN1-701 glass fiber reinforced grade U.S. GE 30600 yuan / ton 
 PPO SE1GFN2 glass fiber reinforced grade U.S. GE 28500 yuan / ton 
 PPO PX9406-701 Flame Retardant U.S.