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Countdown to disclosure: Epstein deadline tests US transparency
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Desperate England looking for Ashes miracle in Adelaide
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Far-right Kast wins Chile election in landslide
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What we know about Australia's Bondi Beach attack
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Witnesses tell of courage, panic in wake of Bondi Beach shootings
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Chiefs out of playoffs after decade as Mahomes hurts knee
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Chilean hard right victory stirs memories of dictatorship
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Volunteers patrol Thai villages as artillery rains at Cambodia border
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Far-right candidate Kast wins Chile presidential election
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Father and son gunmen kill 15 at Jewish festival on Australia's Bondi Beach
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Rodrygo scrapes Real Madrid win at Alaves
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Jimmy Lai, the Hong Kong media 'troublemaker' in Beijing's crosshairs
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Hong Kong court to deliver verdicts on media mogul Jimmy Lai
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Bills rein in Patriots as Chiefs eliminated
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Chiefs eliminated from NFL playoff hunt after dominant decade
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Far right eyes comeback as Chile presidential polls close
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Freed Belarus dissident Bialiatski vows to keep resisting regime from exile
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Americans Novak and Coughlin win PGA-LPGA pairs event
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Zelensky, US envoys to push on with Ukraine talks in Berlin on Monday
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Toulon edge out Bath as Saints, Bears and Quins run riot
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Inter Milan go top in Italy as champions Napoli stumble
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ECOWAS threatens 'targeted sanctions' over Guinea Bissau coup
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World leaders express horror at Bondi beach shooting
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Joyous Sunderland celebrate Newcastle scalp
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Guardiola hails Man City's 'big statement' in win at Palace
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Lens reclaim top spot in Ligue 1 with Nice win
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No 'quick fix' at Spurs, says angry Frank
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Toulon edge to victory over Bath, Saints and Quins run riot
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Freed Belarus protest leader Kolesnikova doesn't 'regret anything'
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Man City smash Palace to fire title warning, Villa extend streak
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Arshdeep helps India beat South Africa to take T20 series lead
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Zelensky meets US envoys in Berlin for talks on ending Ukraine war
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'Outstanding' Haaland stars in win over Palace to fire Man City title charge
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Man City smash Palace to fire title warning, Villa extend winning run
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Napoli stumble at Udinese to leave AC Milan top in Serie A
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No contact with Iran Nobel winner since arrest: supporters
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Haaland stars in win over Palace to fire Man City title charge
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French PM urged to intervene over cow slaughter protests
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'Golden moment' as Messi meets Tendulkar, Chhetri on India tour
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World leaders express horror, revulsion at Bondi beach shooting
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Far right eyes comeback as Chile presidential vote begins
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Marcus Smith shines as Quins thrash Bayonne
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Devastation at Sydney's Bondi beach after deadly shooting
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AC Milan held by Sassuolo in Serie A
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Person of interest in custody after deadly shooting at US university
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Van Dijk wants 'leader' Salah to stay at Liverpool
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Zelensky in Berlin for high-stakes talks with US envoys, Europeans
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Norway's Haugan powers to Val d'Isere slalom win
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Hong Kong's oldest pro-democracy party announces dissolution
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Gunmen kill 11 at Jewish festival on Australia's Bondi Beach
Stocks retreat as US hits Nvidia chip export to China
European and Asian stock markets mostly retreated Wednesday after the US government imposed restrictions on exports of a key Nvidia chip to China, the latest trade war salvo between the world's biggest economies.
Nvidia late Tuesday notified regulators that it expects a $5.5 billion hit this quarter owing to a new US licensing requirement on the chip it can legally sell in the Asian country.
The company at the heart of helping to power artificial intelligence said it must obtain licenses to export its H20 chips to China because of concerns they may be used in supercomputers there.
President Donald Trump's decision over Nvidia is "signalling a tech-led decline for US equities" when Wall Street opens, noted Joshua Mahony, analyst at trading group Scope Markets.
After a relatively peaceful couple of days on markets following last week's tariff-fuelled ructions, investors were once again on the defensive, sending safe haven gold above $3,300 an ounce for the first time.
Nvidia shares tumbled around six percent in after-market trade, and its Asian suppliers were also hit.
Trump has also kicked off an investigation that could see tariffs imposed on critical minerals such as rare earths, which are used in a wide range of products including smartphones, wind turbines and electric vehicle motors.
"Nvidia dropped the mic, revealing fresh export curbs on AI gear headed to China," said Stephen Innes at SPI Asset Management.
"Then came the other shoe: Trump ordering a new probe into tariffs on critical minerals. Boom -- just like that, we're back in whiplash mode.
"Welcome to the new normal: one step forward, two tariff probes back," added Innes.
In Europe, London's benchmark FTSE 100 stocks index was down about 0.5 percent around midday, even as official data showed UK inflation slowed more than expected in March.
Paris and Frankfurt shed a similar amount.
The dollar slid once more against main rivals, helping gold to reach yet another fresh record high, this time at $3,317.75.
Oil prices rose nearly one percent after recent sharp falls on fears that the tariffs will dampen global economic growth.
However, cheaper oil could help put on lid on inflation, analysts said.
Trump's most recent moves mark the latest salvo in an increasingly nasty row that has seen Washington and Beijing hit each other with eye-watering tariffs.
China did little to soothe worries Wednesday by saying US levies were putting pressure on its economy, even if official data showed it expanded more than expected in the first quarter.
Beijing told Washington to "stop threatening and blackmailing".
A decision by Hong Kong's postal service to stop shipping US-bound goods in response to "bullying" levies added to the unease.
- Key figures around 1035 GMT -
London - FTSE 100: DOWN 0.4 percent at 8,220.27 points
Paris - CAC 40: DOWN 0.5 percent at 7,295.34
Frankfurt - DAX: DOWN 0.5 percent at 21,150.31
Tokyo - Nikkei 225: DOWN 1.0 percent at 33,920.40 (close)
Hong Kong - Hang Seng Index: DOWN 1.9 percent at 21,056.98 (close)
Shanghai - Composite: UP 0.3 percent at 3,276.00 (close)
New York - Dow: UP 0.4 percent at 40,368.96 (close)
Euro/dollar: UP at $1.1369 from $1.1291 on Tuesday
Pound/dollar: UP at $1.3272 from $1.3232
Dollar/yen: DOWN at 142.66 yen from 143.18 yen
Euro/pound: UP at 85.69 pence from 85.30 pence
Brent North Sea Crude: UP 0.9 percent at $65.23 per barrel
West Texas Intermediate: UP 0.9 percent at $61.87 per barrel
burs-bcp/lth
J.Bergmann--BTB