Mumbai, July 24 -- Silver prices retreated toward $39 per ounce on Thursday, pulling back from a 14-year high as improving US-EU trade negotiations reduced safe-haven demand. Market sentiment brightened after reports of a proposed 15% baseline tariff on EU goods, with similar agreements already reached with Japan, cutting previous threats of 25% levies. MCX silver futures for September delivery slipped Rs.654 to Rs.114980 per kg, after hitting a lifetime high of Rs.116641 yesterday. Weakness in the US dollar, with the dollar index dipping below 97 to a three-week low, provided some support to bullion. Investors now await next week's Federal Reserve meeting, where rates are expected to remain unchanged amid inflation concerns tied to tariffs...