Slowdown in Polyester operation is expected to remain in place during the summer season as most polyester producers are facing not only inventory pressure, but also cash flow issues.“Now we can only pin our last hopes on September and October as these two months are the peak season for the textile industry,” a Chinese polyester producer said. The slowing demand also resulted in rising port inventories. China’s port inventories have increased to close to 1.5m tonnes, the highest level since 2014.