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On Tuesday, China's benchmark Shanghai Composite Index declined by 0.69 percent to 2883.61 points. The Hong Kong's Hang Seng Index fell by 1.50 percent to 28,122.02 points.

On display was “Scan, Bag, Go,” a system built by QFC and Fred Meyer parent company Kroger that lets customers scan items with a handheld device as they shop. The same device is used at the self-checkout kiosks to pay for everything at once; you can also use a smartphone app instead.

On Wednesday, the FAA gave Amazon the green light to test its newer drone with a specific exemption. It certainly expedited this particular request after Amazon complained that the FAA was too slow with its previous approval. Separately, the FAA?announced this week that it working to help speed up regulatory approval for drone use.

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On Tuesday, the FDA released its evaluation of the safety and effectiveness data for the vaccine, on which Pfizer partnered with BioNTech. The agency said the data was in line with its guidance on emergency use authorization, according to Reuters.

On Wednesday, Russian President Vladimir Putin and Japanese Prime Minister Shinzo Abe held talks on this issue in Singapore.

On Wednesday, the ChiNext index rose 0.78 percent to close at 2140.68 points.

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On some occasions, trucks loaded with raw materials on the way to the factory were suddenly unable to proceed. The procurement team worked via 10 WeChat groups and numerous phone calls, closely coordinating material production and shipments round the clock.

On Thursday, the US Commerce Department said it will not enforce an order to ban TikTok "pending further legal developments," citing a recent ruling by the US District Court for the Eastern District of Pennsylvania.

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On the financial front, the internet-based MYBank, under the auspices of Ant Financial Services Group, pledged 10 billion yuan worth of special loans dedicated to Taobao (a customer-to-customer site) and Tmall merchants.

On Tuesday, Jinmai Lift Technology Co., organizer of the activity, was awarded a Guinness World Records certificate for "most lambs spit-roasted simultaneously."