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China has adopted new measures to ensure the quality of medical supply exports such as COVID-19 test kits and surgical masks, which are expected to offer more robust guarantees on these products, experts said on Wednesday.

China has become the lone ray of hope for foreign automakers including Volkswagen and GM, as the global automotive industry has been badly hit by the coronavirus pandemic.

China has defined extreme poverty as earning less than 2,300 yuan a year, which was set a decade ago and has been adjusted annually against purchasing power parity. The amount is about 4,000 yuan this year.

China feels it is only polite to reciprocate. Hours later, China said it will "fight till the end at any cost" and take "comprehensive countermeasures."

China has also consolidated its role as one of the world leaders in chemistry and material science, with many basic research projects in graphene, alloys and nanomaterials winning second prizes in the natural science category this year.