Chennai-based TANFAC, a chemical company, has successfully commissioned its 5,000 tonnes per annum (TPA) Solar Grade Dilute Hydrofluoric Acid (DHF) plant. This chemical is used in the manufacturing process of wafers and solar cells. https://www.saurenergy.com/solar-energy-news/tanfac-operationalizes-5000-tpa-solar-grade-acid-plant