Sept 28 (Reuters) -

Copper prices rebounded on Thursday after traders squared positions ahead of a long public holiday in China, but a firm dollar weighed on the rally.

Three-month copper on the LME rose 0.6% to $8,160.50 per metric ton by 0719 GMT, while the most-traded November copper contract on the Shanghai Futures Exchange increased 0.1% to 67,240 yuan ($9,206.17) a ton.

Both contracts were falling earlier in the session when traders in China squared positions before the country went on holiday during Sept. 29-Oct. 8, said a trader.

The U.S. dollar index hovered around the highest level since Nov. 30, making the greenback-priced metal more expensive to holders of other currencies.

Copper stockpiles in LME-registered warehouses have nearly tripled since July to 167,850 tons, the highest since May 2022.

LME nickel rose 0.5% to $19,100 a ton, having hit the lowest since July 2022 of $18,555 a ton in the previous session.

Inventories in LME warehouses jumped to 41,628 tons, the highest since April 19.

LME aluminium rose 0.6% to $2,250.50 a ton, lead increased 0.3% to $2,159, tin edged down 0.2% to $25,600, while zinc advanced 1.5% to $2,514.50.

SHFE zinc fell 0.1% to 21,570 yuan, lead declined 1.3% to 16,490 yuan, tin shed 1.3% to 217,200 yuan, while aluminium rose 0.3% to 19,445 yuan and nickel was almost flat at 151,910 yuan.

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($1 = 7.3038 yuan) (Reporting by Mai Nguyen in Hanoi; Editing by Subhranshu Sahu and Sohini Goswami)