The supply of sodium metabisulfite depends on the availability of raw materials, mainly sulphur dioxide, and production capabilities in key regions like China and India, where manufacturing costs are lower. China is a major producer and exporter, while India is also expanding its supply base. Demand for this chemical comes from industries such as food preservation, water treatment, and textiles, so any changes in these sectors can impact supply. Factors like transportation issues, regulatory shifts, and trade conditions also play a role in how sodium metabisulfite is supplied and distributed globally.
