BEIJING, Feb 20 (Reuters) - London copper prices rose for a sixth consecutive session on Wednesday, striking a fresh two-month high on hopes of a trade deal between China and the United States. U.S. President Donald Trump said on Tuesday talks with China, currently taking place in Washington, were going well and suggested he was open to pushing off the deadline to complete negotiations, saying March 1 was not a "magical" date. Tariffs on $200 billion worth of Chinese imports are scheduled to rise to 25 percent from 10 percent by March 1 if there is no deal, which analysts expect would weigh on copper demand and prices. "Optimism around the trade deal has been a key reason behind the price recovery, so any trade talks could again spook negative sentiment across the metals," ANZ said in a note. FUNDAMENTALS * SHFE COPPER: The most-traded April copper contract on the Shanghai Futures Exchange gained as much as 0.9 percent to 49,790 yuan ($7,404.16) a tonne, the highest since Dec. 5 and stood at 49,650 yuan a tonne by the end of the morning session. * COPPER SPREADS: The premium of cash copper over the three-month LME contract CMCU0-3 was at $25 a tonne on Tuesday, versus a discount of $14.25 a week earlier, indicating tighter near-term supply. * OTHER METALS: The entire LME complex made modest gains, with aluminium adding 0.5 percent. Shanghai lead was the sole laggard, slipping 0.1 percent. * LEAD: The global lead market narrowed its annual deficit to 98,000 tonnes in 2018 compared to a shortfall of 148,000 in the previous year, data from the International Lead and Zinc Study Group showed. * ALUMINIUM: South32 could cut about 500 jobs at its Hillside aluminium smelter in South Africa, a trade union said.