The European Union recorded the largest increase in slavery of any world region in 2017, [...] analysts said... "The migrant crisis has increased the risk of slavery incidents appearing in company supply chains across Europe," said [...] senior human rights analyst at Verisk Maplecroft. Globally there are 21 million people in forced labour, including children, in a business worth $150 billion a year, according to the International Labour Organization (ILO)... Romania, Greece, Italy, Cyprus and Bulgaria [ranked] as the countries with the most slave labour within the EU... Globally, North Korea retained the top spot as having the worst record of slave labour, while, outside the EU, Turkey lost the most ground in the ranking, slipping into the "high risk" category. India improved the most, jumping from 15 to 49, while Thailand also made significant gains in the fight against slavery, moving up 21 places... [T]he index aim[s] at helping businesses identify countries most at risk of slave labour.