MANILA, Aug 1 (Reuters) - London copper edged lower on Wednesday, after losing nearly 5 percent last month, with risk appetite curbed by news that the Trump administration may propose a higher 25 percent tariff on $200 billion of Chinese imports.
President Donald Trump's government had initially announced it would seek to impose a tariff of 10 percent, and raising the level to 25 percent would escalate the dispute over trade between the world's two biggest economies.
A source familiar with the plan said the administration could announce the tougher proposal as early as Wednesday.
Three-month copper on the London Metal Exchange was down 0.5 percent at $6,271 a tonne by 0145 GMT, after falling 4.9 percent in July. The most-traded copper contract on the Shanghai Futures Exchange gained 0.4 percent to 49,980 yuan ($7,337) per tonne.
* ESCONDIDA: Union members at BHP's Escondida mine in Chile, the world's largest copper mine, have until Wednesday to finish voting on the company's final contract offer. A union leader on Monday said the group is expected to overwhelmingly reject BHP's offer, increasing the likelihood of a strike.
* CASERONES: The main union at Chile's Caserones mine has rejected operator Lumina Copper's final contract offer and workers have approved strike action, the union's president said.
* VEDANTA: Vedanta Resources Plc Chairman Anil Agarwal's family trust on Tuesday offered about $1 billion in cash to take the London-listed miner private.
* GLENCORE: Glencore cut full-year guidance for its lead and coal output, while first-half copper production rose 8 percent from a year earlier and cobalt increased 31 percent as operations ramped up in Democratic Republic of Congo.
* CURRENCIES: The Chinese yuan dropped in offshore trade and the Australian dollar slipped on a report the U.S. administration will propose raising its planned tariffs on $200 billion of Chinese imports to 25 percent.
0145 China Caixin manufacturing PMI final Jul
0750 France Markit manufacturing PMI Jul
0750 Germany Markit/BME manufacturing PMI Jul
0800 Euro zone Markit manufacturing PMI Jul
1215 U.S. ADP national employment Jul
1400 U.S. Construction spending Jun
1400 U.S. ISM manufacturing PMI Jul
1800 U.S. Federal Reserve releases policy statement after
Three month LME copper
Most active ShFE copper
Three month LME aluminium
Most active ShFE aluminium
Three month LME zinc
Most active ShFE zinc
Three month LME lead
Most active ShFE lead
Three month LME nickel
Most active ShFE nickel
Three month LME tin
Most active ShFE tin
ARBS ($1 = 6.8119 Chinese yuan)
Reporting by Manolo Serapio Jr.; editing by Richard Pullin