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METALS-London copper slips, stays on course for weekly gain

(Updates prices, adds analyst comment) BEIJING, Dec 22 (Reuters) - London copper prices edged lower on Friday to reverse gains made the session before, as the dollar strengthened slightly and wage agreements at mines in Chile eased concerns about disruptions to supply from the world's top producer of the metal. A rising U.S. currency makes dollar-denominated commodities more expensive for non-U.S. firms but copper remains on course for a weekly gain of more than 2 percent and a close above $7,000 per tonne on the London Metal Exchange (LME) before the two-day Christmas holiday next week. "Heading into next year, a case can be made for a relatively higher trading range for copper compared to what we saw in 2017," INTL FCStone said in its 2018 outlook, noting that key labor negotiations "could potentially impact a substantial amount of metal."

FUNDAMENTALS

* LME COPPER: Three-month copper on the London Metal Exchange (LME) had slipped 0.6 percent to $7,042.50 a tonne by 0506 GMT. It gained 0.6 percent in Thursday's session, during which it touched its highest in nearly two months.

* SHFE COPPER: The most-traded February copper contract on the Shanghai Futures Exchange (ShFE) was flat at 54,250 yuan ($8,254.72) a tonne at the mid-session interval. ALUMINIUM: LME aluminum was down 0.4 percent at $2,142 a tonne on end-of-year profit-taking after a week-long rally triggered by lower production in China. ShFE aluminum was down 0.4 percent.

* OTHER METALS: Zinc, nickel and lead were all down by around half a percent in London as traders closed books for the year.

* TECK: Canadian miner Teck Resources and the union representing 105 workers at its Quebrada Blanca copper mine in Chile said on Thursday they had reached a new wage agreement, ending an eight-day strike.

* ANTOFAGASTA: Chilean miner Antofagasta Plc said on Wednesday it had reached a new wage agreement with unionized workers at its Centinela mine, defusing the risk of a strike amid a volatile labor landscape.

* USD: The dollar was steady at 113.305 yen, with its index against a basket of six major currencies 0.1 percent higher at 93.395.

* ALASKA: The would-be developer of the widely opposed Pebble Mine copper and gold project in salmon-rich southwestern Alaska announced on Thursday it will file its first application for a permit.

* AFRICA: With some mining companies increasingly reluctant to own outright the infrastructure that keeps their projects going, an African development institution is linking up with investment funds to help fill the gap.

* UNITED STATES: U.S. Interior Secretary Ryan Zinke on Thursday launched an effort to reduce U.S. dependence on foreign supplies of critical minerals used in smartphones, computers and military equipment, which he said poses a national security and economic risk.

* COLUMN: Blue skies, green cars and a year of revolution for industrial metals: Andy Home.

* For the top stories in metals and other news, click or

MARKETS NEWS

* The euro dipped on Friday after Catalan separatists wanting to break away from Spain won a regional election, while Asian stocks edged up on new data pointing to steady growth in the U.S. economy.

DATA AHEAD (GMT)

0930 U.K. GDP Q3

PRICES

BASE METALS PRICES 0506 GMT Three month LME copper 7042.5 Most active ShFE copper 54240 Three month LME aluminum 2141.5 Most active ShFE aluminum 14620 Three month LME zinc 3230 Most active ShFE zinc 25455 Three month LME lead 2493.5 Most active ShFE lead 19065 Three month LME nickel 11990 Most active ShFE nickel 95590 Three month LME tin 19400 Most active ShFE tin 137410

BASE METALS ARBITRAGE

LME/SHFE COPPER LMESHFCUc3 264.39 LME/SHFE ALUMINIUM LMESHFALc3 -1725.04 LME/SHFE ZINC LMESHFZNc3 311.34 LME/SHFE LEAD LMESHFPBc3 -813.6 LME/SHFE NICKEL LMESHFNIc3 2118.9

($1 = 6.5720 Chinese yuan)

(Reporting by Tom Daly; Editing by Joseph Radford and Subhranshu Sahu)