Iron-ore futures ticked up on Tuesday for a second straight session, buoyed by stronger global steel production, although US President-elect Donald Trump's pledge to implement new tariffs when he takes office limited gains.

The most-traded January iron-ore contract on China's Dalian Commodity Exchange (DCE) DCIOcv1 traded 0.77% higher at 786.5 yuan ($108.41) a metric ton, as of 0240 GMT.

The benchmark December iron-ore SZZFZ4 on the Singap-ore Exchange was 0.19% higher at $102.8 a ton.

The World Steel Association revised its production data upwards on Monday to show global crude steel output in October rose 1% from a year earlier, compared with a 0.4% gain reported last Friday.

In China, the world's top producer and consumer of the metal, crude steel production climbed 2.9% last month, latest data showed.

Meanwhile, Trump pledged an additional 10% tariff on all Chinese goods until Beijing stops the flow of illegal drugs into the United States.

China, the world's second-largest economy, is now in a much m-ore vulnerable position given the country's prolonged property downturn, debt risks and weak domestic demand.

Neither the United States nor China would win a trade war sparked by Trump's tariffs, the Chinese Embassy in Washington said on Monday.

Iron -ore markets remain very focused on upcoming Chinese meetings, including the Politburo meeting scheduled for early December and the Central Economic Work Conference scheduled for mid-December, Westpac analysts said in a note.

"China still faces very severe structural headwinds to growth, but at the very least, fiscal and monetary policy settings are now m-ore obviously injecting meaningful support," Westpac said in a separate note.

Other steelmaking ingredients on the DCE were mixed, with coking coal DJMcv1 down 0.7% and coke DCJcv1 up 0.44%.

Most steel benchmarks on the Shanghai Futures Exchange edged higher. Rebar SRBcv1 gained about 0.4%, hot-rolled coil SHHCcv1 rose almost 0.3%, wire rod SWRcv1 strengthened about 1.2%, while stainless steel SHSScv1 lost nearly 0.7%.