Paraxylene is a building block for polyester production and is used in plastic bottles and fibers. Prices fell 14% in December but are expected to rise again. An explosion occurred at a 800,000 metric ton per year paraxylene plant in China, just days after protests against another similar plant. Nearly 13 million metric tons per year of new purified terephthalic acid production capacity is being added in Asia this year, outpacing the addition of paraxylene capacity. Reliance Industries is one of the largest global producers of paraxylene with an annual capacity of 1.86 million tons across various plants.