Employees work on electronic cigarettes at a production line in a factory in Shenzhen, southern Chinese province of Guangdong January 15, 2014. E-cigarettes were invented about a decade ago by a Chinese medical researcher and the country supplies nearly all global demand. Puffing on the devices, or vaping, is surging worldwide, but it forms only a tiny part of China’s 1.2 trillion yuan (about $200 billion) cigarette business. Now, rising public awareness about the hazards of smoking, coupled with China’s hardening stance on smoking in public, is opening up an opportunity for e-cigarettes to make inroads into the world’s biggest tobacco market. REUTERS/Tyrone Siu (CHINA – Tags: BUSINESS HEALTH)