A CRRC worker walks past an unfinished metro train car in the company's Kunming factory, Yunnan province, April 11, 2016. REUTERS/Brenda Goh

A CRRC worker walks past an unfinished metro train car in the company’s Kunming factory, Yunnan province, April 11, 2016. REUTERS/Brenda Goh

A CRRC worker walks past an unfinished metro train car in the company's Kunming factory, Yunnan province, April 11, 2016. REUTERS/Brenda Goh

June 14, 2016 2:35 PM (UTC+8)