SINGAPORE, Jan 16 (Reuters) - London copper edged up on Thursday after the United States and China signed a preliminary trade deal, but gains were limited as investors doubted the pact would spur world economic growth.
Three-month copper on the London Metal Exchange (LME) rose 0.1% to $6,293.50 a tonne by 0231 GMT, hovering below an eight-month high of $6,321 hit on Tuesday.
The most-traded copper contract on the Shanghai Futures Exchange, however, fell 0.2% to 49,290 yuan ($7,162.27) a tonne, after hitting a two-week high in the previous session.
Washington and Beijing signed the Phase 1 trade deal on Wednesday that will roll back some tariffs and boost Chinese purchases of U.S. products, defusing an 18-month row that has hurt global economic growth and metals demand.
But investors are worried that the pact would not substantially boost metals demand as the deal left a number of sore spots unresolved.
* TECHNICALS: LME three-month copper is facing a resistance of $6,371.54 a tonne while its supporting level stands at $6,225.47 a tonne, Reuters commodities and energy technical analyst Wang Tao said.
* CHINA HOUSING: New home prices in China's 70 major cities rose 6.6% in December from a year earlier, the slowest since July 2018, and down from November's 7.1% on-year increase.
* COPPER: Copper inventories in LME-approved warehouses <MCUSTX-TOTAL> fell to a 10-month low of 128,050 tonnes on Tuesday, latest data showed.
However, the discount between LME cash and three-month contract <CMCU0-3> expanded to a more than three-month high of $34.50 a tonne, suggesting no nearby supply shortage.
* PRICES: LME nickel fell 0.4% to $14,265 a tonne, while tin rose to a four-month high of $17,600 a tonne. In Shanghai, aluminum gained 0.4% to 14,005 yuan a tonne, while nickel jumped 2% to 111,430 yuan a tonne and lead climbed 1.4% to 15,215 yuan a tonne.
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* World stocks inched to a record high after the United States and China signed a deal to defuse their 18-month trade war, which has weighed on global economic growth and hampered investments.
0700 Germany HICP Final YY Dec
1330 US Initial Jobless Claims Weekly
1330 US Philly Fed Business Indx Jan
1330 US Retail Sales MM Dec
n/a China Total Social Financing Dec
n/a China M2 Money Supply YY Dec
n/a China New Yuan Loans Dec
Three month LME copper
Most active ShFE copper
Three month LME aluminum
Most active ShFE aluminum
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
($1 = 6.8819 yuan) (Reporting by Mai Nguyen; Editing by Subhranshu Sahu)