The Terephthalic Acid Market is estimated to grow from USD 42.5 billion in 2021 to USD 61.38 billion by 2028 at a healthy CAGR of 5.29 % during the forecast period.Terephthalic acid is an organic compound, which is a white solid commodity chemical, used principally as a precursor to polyester PET, used to make clothing and plastic bottles. Terephthalic Acid formula C6H4(CO2H)2.