Hydrogen is expected to play a much larger role in China's decarbonization, especially in industries like steelmaking and aviation, where there are few clean energy alternatives, analysts said.

Chen also outlined a series of goals to achieve in terms of green transformation across raw material industries by the end of 2025.

"Steel is a key foundation industry and it is absolutely essential that it receives practical support from the government," he said.

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China will be the main battlefield for massive technological innovation and application scenarios, said Zou Ji, CEO and president of Energy Foundation China.