(Updates prices)

LONDON, Aug 6 (Reuters) - Copper prices drifted lower onThursday as investors questioned whether demand would improveenough to extend a rally beyond two-year highs reached lastmonth.

The metal used in power and construction rebounded from alow of $4,371 a tonne in March to a high of $6,633 in July asChina, the biggest consumer, unwound coronavirus lockdowns.

But since then prices have moved sideways. Benchmark copper CMCU3 on the London Metal Exchange (LME) was at $6,482 a tonneat 1600 GMT, down 0.2%.

"The market doesn't know where to go given that outsideChina you have negative demand growth," said Julius Baer analystCarsten Menke.

The coronavirus was not disrupting supply as much as fearedand the market will be in surplus through the rest of the year,he said.

"My target is $6,250. Current levels are basically fairvalue."

FACTORIES: Orders for German-made goods rose sharply in Junebut remained far below pre-pandemic levels, according to datathat fits into a wider rebound in global manufacturing activity. urn:newsml:reuters.com:*:nL8N2F8204 urn:newsml:reuters.com:*:nL1N2F50TL

VIRUS: But the number of coronavirus cases is still risingin a number of countries. urn:newsml:reuters.com:*:nL8N2F82KK urn:newsml:reuters.com:*:nL1N2F71NI

MARKETS: Stocks slipped on deadlock over a U.S. coronavirusaid package, U.S. unemployment data and disappointing corporateearnings reports. MKTS/GLOB urn:newsml:reuters.com:*:nL1N2F71R8

WEAKNESS: "We see continued strength in Chinese copperdemand failing to offset the weakness in the rest of the worldfor a while yet," said analysts at ANZ.

"Demand will fall 4% in 2020, with growth remaining subduedin 2021," they said, forecasting prices at $6,000 in threemonths.

CHINA DEMAND: Researchers Antaike said China would import3.5 million tonnes of copper this year, down from 3.55 milliontonnes in 2019. urn:newsml:reuters.com:*:nL4N2F82OG

PNG: Papua New Guinea's Ok Tedi mine suspended operationsfor at least 14 days, cutting its copper output by about 4,000tonnes. urn:newsml:reuters.com:*:nL4N2F822L

CHILE/PERU: Copper output in Chile and Peru, the biggestproducers, had bounced back from coronavirus disruption by June,government data showed. urn:newsml:reuters.com:*:nL1N2F70ZR urn:newsml:reuters.com:*:nL1N2F61CN

OTHER METALS: LME aluminium CMAL3 was up 0.7% at $1,779 atonne, zinc CMZN3 fell 0.1% to $2,406, nickel CMNI3 rose0.4% to $14,480, lead CMPB3 gained 1.1% to $1,954.50 and tin CMSN3 was down 0.1% at $17,860.

(Reporting by Peter Hobson; Additional reporting by Tom Daly;Editing by Jane Merriman and David Evans) ((Peter.Hobson@thomsonreuters.com; +44 207 542 0083;))

(( For related news and prices, click on the codes in brackets: LME price overview RING= COMEX copper futures 0#HG: All metals news MTL All commodities news C Foreign exchange rates FX= SPEED GUIDES LME/INDEX ))