On May 5, the market price of phthalic anhydride in Jiangsu Province was temporarily stable. Downstream factories maintained the purchase on demand. The main trend of the source negotiation of ortho benzene method was 8000-8100 RMB/ton, and the main trend of the source negotiation of naphthalene method was 7500-7600 RMB/ton. Recently, the spot supply in the domestic phthalic anhydride market was normal, and downstream factories mainly purchased on demand. In the later period, the market price of phthalic anhydride mainly declined.

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