IMF Managing Director Christine Lagarde did, however, warn against protectionism in a barely veiled reference to US tariff threats, and said the World Trade Organization's rules were in danger of being torn up, threatening global economic growth.
The decision by Europe's largest power utility to not do business with energy-hungry miners comes as concerns grow over the sustainability of cryptocurrencies.
The World Economic Forum begins in an environment of robust global growth but facing warnings that the world's have-nots are missing out more than ever.
Lagarde says the strength of the global economic recovery has taken the IMF by surprise.
British Prime Minister Theresa May says she would delay Brexit only in "exceptional circumstances."
7.7 billion euros will come in early July to cover the repayment of 6.9 billion euros worth of maturing Greek debt and 0.8 billion of arrears. A further 0.8 billion euros would be disbursed after the summer.
Pressure is on creditors to reach a deal so that Greece can make a payment of around 7.5 billion euros due in July.
The summit, which is under the motto "Inspiring women: scaling up women's entrepreneurship", had guests such as German Chancellor Angela Merkel and IMF Managing Director Christine Lagarde.
Le Pen has pledged to take France out of the eurozone and stage a referendum on exiting the European Union, as Britain voted to do last year.
French judges say Lagarde failed to challenge a 400 million euro state arbitration payout to a business tycoon during her term as finance minister, but did not hand down a punishment citing her "good reputation and international standing."
Largarde is accused of being negligent over a 400 million euro payout to a controversial businessman during her time as France's finance minister.
Christine Lagarde's trial is only the fifth to be held before the Cour de Justice de la Republique, a special tribunal created in 1993 to try cabinet ministers.
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