Polystyrene price falls in 2025. There are two factors that lead to the result.
The following chart is GPPS 525 price in China. Red line is the price of 2025, and the blue one is that of 2024.

GPPS 525 recent price is ¥6900, about 28% lower than the same time of 2024.
The first reason that impacts the price is WTI price.
The following chart is WTI price. Red line is the price of 2025, and the blue one is that of 2024.

WTI recent price is $56, about 20% lower than the same time of 2024.
The second reason is China exports more than before.
China's Polystyrene export amount in 2025 is 64,891 ton/month, about 43% higher than 2024.

