Recasts, updates prices

BEIJING, Sept 2 (Reuters) -Most base metals begun September on a weaker note on Monday, as the market trimmed bets about an aggressive policy easing in the U.S., and China's manufacturing data increased demand concerns.

Three-month copper on the London Metal Exchange CMCU3 was down 0.4% at $9,199.50 per metric ton by 0411 GMT, after posting a slight gain in August, with rising prospect of a September rate cut.

The most-traded October copper contract on the Shanghai Futures Exchange SCFcv1 slid 0.5% to 73,620 yuan ($10,364.05) a ton.

Trading and sentiment are largely dominated by U.S. data, said Guangzhou Futures analysts.

Data showed on Friday upbeat spending figures in the world's top economy, leading markets to trim the chance of a half-point easing from the Federal Reserve.

That boosted the dollar, which was hovering around a two-week top on Monday.

A strong dollar makes it more expensive to buy the greenback-priced commodity and hence weighs down metals prices.

Crucial for the Fed will be the payrolls report later this week.

Also weighing on the market was demand from China. Copper stocks have declined in recent weeks after lowered prices encouraged buying, also with a traditional good autumn season.

An official manufacturing survey on Saturday showed China's manufacturing activity sink to a six-month low in August as factory gate prices tumbled and owners struggled for orders.

Meanwhile, a private sector survey which mostly covers smaller, export-oriented firm, showed the country's manufacturing activity swung back to growth in August as new orders drove production.

LME aluminium CMAL3 shed 0.8% to $2,427.50 a ton, nickel CMNI3 slid 0.8% to $16,625, zinc CMZN3 moved 1.5% lower to $2,853.50, tin CMSN3 lost 1.9% at $31,740, while lead CMPB3 increased 0.1% to $2,055.

SHFE aluminium SAFcv1 slipped 0.9% to 19,560 yuan a ton, lead SPBc1 slipped 0.4% to 17,220 yuan, while nickel SNIcv1 fell 2.5% to 128,290 yuan, zinc SZNcv1 trimmed 1.3% lower to 23,720 yuan and tin SSNcv1 lost 2.1% to 257,390 yuan.

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($1 = 7.1034 Chinese yuan renminbi)

Reporting by Siyi Liu and Mei Mei Chu; Editing by Rashmi Aich

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