April synthetic rubber prices fell after the first rise, the overall look is still down. Butadiene rubber prices by 16374 yuan / month at the beginning of 14083 yuan / ton fell to the month after month tons, rebounded to 14501 yuan / ton, the overall decline in 11.44%; styrene butadiene rubber prices by 14214 yuan / month at the beginning of 12514 yuan / ton fell to the second half of the month tons, gradually rebounded at the end of 13742 yuan / ton, the overall decline in 3.32%.