* Coming up: API's U.S. inventory data at 4:30 p.m. EDT (Updates prices, market activity, adds commentary; changes byline, dateline, previous LONDON)
* U.S. onshore oil paying more for steel than in other regions
* Morrisons, Sainsbury's, Ocado rise on strong sales (Updates prices, adds details, quotes)
LONDON, Aug 21 European shares closed slightly higher on Tuesday as investors on both sides of the Atlantic took a cautiously optimistic view of trade talks between the United States and China which are set to begin on Wednesday.
BERLIN, Aug 21 Europe needs to set up payment systems independent of the United States if it wants to save the nuclear deal between Iran and major powers that was abandoned by President Donald Trump, German Foreign Minister Heiko Maas said.
No related earnings announcements are currently scheduled within the next 7 days.