Lower import and anti-dumping duty (ADD) on imported soda ash helped Indian producers to improve their net profit margins in 2015-16. While domestic production rose, imports declined by 16 per cent. According to Alkali Manufacturers' Association of India (AMAI) data, India had imported 705,600 tonnes in 2014-15, down to 591,990 tonnes in 2015-16."Indian manufacturers were able to satisfy the demand in the domestic market and China volumes were low, owing to availability issues there. As a…