Three of the world’s largest gold refineries said on Monday they had suspended production in Switzerland for at least a week after local authorities ordered the closure of non-essential industry to curtail the spread of the coronavirus. The refineries – Valcambi, Argor-Heraeus and PAMP – are in the Swiss canton of Ticino bordering Italy, where the virus has killed more than 5,000 people in Europe’s worst outbreak.
