SINGAPORE (ICIS)--Chinese Hengli Petrochemical settled on Thursday its April purified terephthalic acid (PTA) contract prices in east China at yuan (CNY) 6,890/tonne ($1,025/tonne) ex-warehouse,a company source said.The contract prices rose by CNY20/tonne from March,the source added.Hengli Petrochemical operates three PTA plants,which have a combined capacity of 6.6 million tonnes/year.
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