On July 18, the spot market for polyester bottles and chips in East China was weak. The market price for July goods was around 6,900 - 7,050 yuan/ton, which was stable compared with the previous working day. The price for August goods was 6,850 - 6,950 yuan/ton. The PTA period of raw materials is weakening and the cost support is weakening. The price of bottle and chip manufacturers is lowered by 50 yuan/ton, and dealer prices tend to be low-end.