Asia to dominate global caustic soda capacity additions by 2025 GlobalData Energy 8 April 2021 (Last Updated April 8th, 2021 14:57) Global caustic soda capacity is poised to see considerable growth over the next five years, potentially increasing from 98.54 million tonnes per annum (Mtpa) in 2020 to 105.50Mtpa in 2025, registering total growth of 7%. Global caustic soda capacity is poised to see considerable growth over the next five years. Credit: BlackstarRedbuff / Shutterstock. Share Article Global caustic soda capacity is poised to see considerable growth over the next five years, potentially increasing from 98.54 million tonnes per annum (Mtpa) in 2020 to 105.50Mtpa in 2025, registering total growth of 7%. GlobalData’s latest report ‘Global Caustic Soda Industry Outlook to 2025 – Capacity and Capital Expenditure Forecasts with Details of All Active and Planned Plants’ states that around 47 planned and announced plants are scheduled to come online primarily in Asia and Africa.