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China's "big three" State-run carriers - Air China Ltd, China Southern Airlines Co and China Eastern Airlines Corp - were considering joint action to seek compensation from Boeing for the disruption caused by the 737 Max groundings, Bloomberg reported last week, citing sources familiar with the matter.

China's auto market, hit by COVID-19, began to recover in April thanks to unleashed pent-up demand and supportive policies, with sales rising 4.4 percent year-on-year. This ended a contraction streak over the previous 21 months, according to CAAM.

China will keep making remarkable achievements on tackling pollution with a good understanding of the role that policy plays in incentivizing the private sector to respond to green finance, said a senior executive of the Asian Development Bank.

China's "new infrastructure" construction plan, particularly charging piles for new energy vehicles, 5G base stations, ultrahigh voltage power and intercity high-speed railways, may boost demand for metals like copper and cobalt, industry experts said.

China would be happy to see the two sides restart their talks as scheduled, he said.