"Coverage is extended to all migrant workers in Shanghai, " Mr. Han told a press briefing.

WSJ: China's Population Shifts to Cities

They used a local Shanghai designer to direct workers, though they ignored most of his advice.

WSJ: Luxury Real Estate: Embracing Old Shanghai in a French Concession Lilong

Ever since China opened its doors for business in 1978, there have been foreign workers in Beijing, Shanghai, Shenzhen and other large Eastern coastal cities.

FORBES: China Invests In Foreign Talent

It also provides lifelong learning support to four million Shanghai residents and to an equal number of migrant workers.

UNESCO: MEDIA SERVICES

The church in Shanghai is barely two years old but already has two offspring, one for workers in a multinational company, the other for migrant labourers.

ECONOMIST: Christianity in China

Now it is mainly flowing into Shanghai and other parts of the Yangtze river delta, where technology-savvy workers are easier to find and transport to foreign and domestic markets is convenient.

ECONOMIST: China and Taiwan

China has an estimated 250 million migrant workers, most of them in Guangzhou, Beijing, Hong Kong and Shanghai.

FORBES: Chinese Migrant Workers Enticed To Stay Home