* STOXX 600, Germany's DAX near 3-week lows
* Royal Mail slumps 17% as turnaround plan delayed
* Thyssenkrupp scraps dividend, shares eye worst day in 3 years (For a live blog on European stocks, type LIVE/ in an Eikon news window)
Nov 21 (Reuters) - European shares slid to near three-week lows on Thursday after U.S. legislation on Hong Kong added to concerns that a "phase one" trade deal between Washington and Beijing would not be sealed anytime soon.
Trade-sensitive sectors such as miners, technology and industrials were particularly hit hard, with negative updates from Thyssenkrupp and Fiat Chrysler adding to the downbeat mood.
The German conglomerate scrapped its dividend for the first time in six years and reported a full-year net loss that widened five-fold after failed attempts to turnaround its business. Thyssenkrupp's shares fell 10%, on track for their biggest percentage loss in over three years.
Fiat Chrysler dropped 2.7% after General Motors filed a lawsuit, alleging that its rival bribed United Auto Workers union officials over many years to corrupt the bargaining process and gain advantages.
A Reuters report that completion of a "phase one" trade deal could slide into next year raised fears that a fresh round of U.S. tariffs on Chinese goods in December could trigger a global slowdown.
Further adding to woes, U.S President Donald Trump is expected to sign two bills passed by Congress intended to support protesters in Hong Kong.
"Recently, we've seen optimism that at one point there will be a trade deal, but the news overnight shows that there is not much certainty to that," said Elwin de Groot, head of macro strategy at Rabobank.
"These moves are a reflection of some investors increasingly questioning whether there will now be a trade deal at all."
Hopes that the two sides will be reaching a deal soon and somewhat better-than-expected earnings reports had driven European stocks to a four-year peak earlier this week.
However, the pan-European STOXX 600 index slid 0.7% to its fourth day of losses, while trade-sensitive shares of Germany and France dropped 0.5% and 0.6%, respectively.
British postal company Royal Mail slumped 17% to the bottom of the STOXX 600, after saying its plan to expand its parcels business internationally was behind schedule even as it posted a first-half operating profit.
French luxury group LVMH slipped 1.1% after Reuters reported it had persuaded U.S. jewelry chain Tiffany to provide access to its books after it raised its bid to close to $16 billion.
Among a few bright spots was British American Tobacco , up 5.5% after the U.S. regulator dropped plans to sharply cut nicotine in cigarettes.
British utility Centrica gained about 8% after saying it was on track to meet its full-year cash flow and earnings targets and raised its expected efficiency savings by 50 million pounds ($65 million). (Reporting by Sruthi Shankar and Shreyashi Sanyal in Bengaluru; Editing by Bernard Orr and Shounak Dasgupta)