The world's two largest economies are trying to hammer out a deal before a March 1 deadline.
Emerging market shares rebounded on Tuesday, after four sessions of losses, buoyed by hopes of a resolution of trade tensions between China and the United States.
US and Chinese officials expressed hopes on Monday that a new round of talks this week would bring them closer to easing their seven-month trade war, which has contributed to slowing global growth and roiled financial markets.
The world's two largest economies are trying to hammer out a deal before a March 1 deadline, after which US tariffs on $200 billion worth of Chinese imports are scheduled to increase to 25% from 10%.
Mainland China stocks extended gains to a fourth day, while Taiwan shares rose nearly 1%. Equities in Turkey, Russia and South Africa climbed by between 0.4% and 1.1%, helping the MSCI index of developing world shares rise 0.4%.
Emerging market currencies firmed against a steady dollar. Most Asian currencies gained ground, while South Africa's rand firmed 0.2%, cutting some of Monday's losses.
The rand lost more than 1% on Monday after state electricity firm Eskom stepped up controlled power cuts because of a shortage of generating capacity.
India's rupee was up 0.6% at a near one-month high ahead of January consumer inflation data due later in the day that could determine the central bank's next interest rate move.
Among emerging European currencies, the Hungarian forint strengthened after the country's core inflation jumped to a five-year high of 3.2% in January.