[CME Halts Metals and Natural Gas Futures and Options Trading Due to 'Technical Issues'] According to a report by Jinse Finance, CME (Chicago Mercantile Exchange) announced on Wednesday that trading in the CME Globex metals and natural gas futures and options markets has been suspended due to technical issues. The exchange operator stated that its support team is investigating the matter. Earlier this month, CME Group had reported delays in the publication of metals settlement prices.