Exemption exclusion for refined gold and silver production limits exemptions for new or expanded units commencing after March 1, 2016. Amendments to notifications 56/2002, 57/2002, 20/2007 and 01/2010 insert that the exemption shall not apply to (a) new industrial units producing refined gold or silver commencing commercial production on or after 1 March 2016, and (b) existing units as on 1 March 2016 that substantially expand or install fresh plant, machinery or capital goods for such production and commence commercial production from the expanded capacity or new assets on or after 1 March 2016.