Chinese smartphone maker Xiaomi Corp said on Saturday there is no time frame for a mainland share offering, casting doubt on Beijing's efforts to lure foreign-listed Chinese tech giants back home.

ZTE Corp is expected to deposit $400 million (£301.6 million) in an escrow account in a U.S. bank in the "next couple of days," the last step the Chinese company must take before a ban on U.S. suppliers can be lifted, a U.S. Department of Commerce official told Reuters on Friday.

After long insisting he would only wear a neck tie when Greece's debt problem was settled, Prime Minister Alexis Tsipras duly did so on Friday, after euro zone peers offered debt relief that marks a turn away from the country's long crisis.

Bitcoin dropped to a more than four-month low on Friday, continuing a downtrend after more negative headlines such as Japan's financial regulator ordering six digital currency exchanges to make improvements on their anti-money laundering systems.

Netflix Inc Chief Communications Officer Jonathan Friedland is leaving the video streaming company, a company spokesperson said on Friday without giving more details.

World shares rose on Friday but still registered their biggest weekly decline in three months on continuing global trade tensions, while oil prices surged after OPEC decided on only modest increases in crude production.