* Copper bounces off 2-week lows, Shanghai zinc up 2.7 pct * Euro jumps after German GDP data beats forecasts * LME tin in backwardation, first time since Nov * Coming Up: U.S. CPI, retail sales; 1230 GMT (Recasts, adds comment, updates prices) By Manolo Serapio Jr. SINGAPORE, Aug 13 (Reuters) - Copper rose on Friday after the U.S. dollar slipped against the euro on stronger than expected German economic growth numbers, although worries about the rest of the global economy kept gains in check. The euro EUR= climbed 0.5 percent against the dollar after data showed the German economy grew at its quickest pace in 23 years in the second quarter, boding well for a first estimate of euro zone GDP numbers due later on Friday. [ID:nLDE67C0AI] "The weak dollar is the main reason prices are up, thanks to the German data," said a metals trader in Shanghai. Three-month copper on the London Metal Exchange CMCU3 rose $40 to $7,300 a tonne at 0702 GMT, adding to a $69 gain in the previous session. The metal is still down nearly 1 percent for the week, after three consecutive weeks of rises. It slid to two-week lows on Thursday as doubts grew over the global recovery, fed by a spate of recent poor data from the United States and China. "There's ongoing uncertainty and weakness for the time being and that's being reflected in the price of metals at the moment. We're not out of the doldrums yet," said James Wilson, a resources analyst at DJ Carmichael in Perth. There was more bad economic news overnight, with the number of U.S. workers filing new claims for jobless benefits rising unexpectedly last week to the highest in nearly six months, the latest evidence of a faltering recovery. [ID:nN1274714] That followed the Federal Reserve's downgrade of its assessment of the U.S. economy, as well as China data earlier this week showing investment and factory output growth moderating along with imports. [ID:nN09275781] [ID:nTOE67A01A] Shanghai benchmark third-month copper SCFc3 rallied 1,000 yuan to close at 57,400 yuan a tonne. Despite the gain, Shanghai copper is down 0.7 percent this week. CLOSER ALIGNMENT Declining production could aid prices, with global output down sharply in the first half of 2010, signaling a tighter supply/demand balance in the months ahead. [ID:nN12119254] In terms of technicals, LME copper may consolidate between $7,150 and $7,294 before either resuming the bear trend or climbing towards $7,527, a three-month top hit last week, said Reuters market analyst Wang Tao. [TECH/C-MET] For a graphic of the 24-hour copper technical outlook: here Elsewhere in the complex, LME cash tin MSN0 moved to a premium over the three-month price MSNO-3, going into backwardation for the first time in more than eight months. [ID:nSGE67C01A] The backwardation suggests looming tightness in supply, although tin is a relatively illiquid market and is the smallest on the LME. Indonesia, the world's largest exporter of the metal, said on Thursday its refined tin output for 2010 may fall 20 percent from a government target of 105,000 tonnes as unseasonally long rains hamper mining. [ID:nJAK407383] Three-month LME tin CMSN3 rose 0.9 percent to $20,690 a tonne, extending a more than 3 percent jump on Thursday. Shanghai zinc SZNc3 climbed 2.7 percent to end at 16,985 yuan a tonne. Base metals prices at 0702 GMT Metal Last Change Pct Move End 2009 YTD pct chg LME Cu 7300.00 40.00 +0.55 7375.00 -1.02 SHFE Cu* 57400.00 1000.00 +1.77 59900.00 -4.17 LME Alum 2169.00 5.50 +0.25 2230.00 -2.74 SHFE Alum* 15415.00 175.00 +1.15 17160.00 -10.17 COMEX Cu** 330.05 1.80 +0.55 332.75 -0.81 LME Zinc 2077.25 21.25 +1.03 2560.00 -18.86 SHFE Zinc 16985.00 450.00 +2.72 21195.00 -19.86 LME Nickel 21847.00 347.00 +1.61 18525.00 17.93 LME Lead 2127.00 27.00 +1.29 2432.00 -12.54 LME Tin 20690.00 190.00 +0.93 16950.00 22.06 LME/Shanghai arb^ 595 Dollar/yuan 6.7902 \ 6.7911 ** 1st contract month for COMEX copper * 3rd contact month for SHFE aluminium, copper and zinc ^ LME 3-m copper in yuan, including 17 pct VAT, minus SHFE third month

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