China says US should provide 'concrete proof' of espionage

China's foreign ministry on Friday said the United States "should provide concrete proof" to back up its charges of alleged Chinese espionage on US companies. The World is One News, WION examines global issues with in-depth analysis. We provide much more than the news of the day. Our aim is to empower people to explore their world. Please keep discussions on this channel clean and respectful and refrain from using racist or sexist slurs as well as personal insults. Subscribe to our channel at Check out our website: Connect with us on our social media handles: Facebook: Twitter: Google Plus: