The import and export volumes of a single month have been kept at a high level of more than 2.7 trillion yuan for four straight months, customs data showed.
The institute, which grew the virus at the end of January, has confirmed that the work can also help an antibody screen test to identify the infection in patients who have yet to develop symptoms.
The incident caused panic among the people and all the shops were closed down following the attack in the main business hub of the city.
The institute said fine, dense ash drifted in many areas in provinces south and north of Manila.
The incident contaminated 60 hectares of water and 20 hectares of aquaculture farms owned by 152 fishing families. As of Thursday afternoon, the local authorities had dispatched more than 400 vessels and 2,500 personnel to clean up the water, and the work had been mostly completed, the statement said.
The institute launched an investigation after screenshots of the comments went viral on Sina Weibo and question-and-answer website Zhihu. Chinese netizens were furious and demanded Kolars, who claimed to hold a foreign expert green card and to have lived in China for two decades, be fired and banned from entering the country again.
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The income tax will be about 800 yuan, nearly 75 percent lower than the amount of over 3,100 yuan before October.
The international community should give play to the spirit of the world anti-Fascist war, step up coordination and solidarity and implement the vision of a community with a shared future for mankind to jointly win the battle that concerns the life, safety and health of people of all nations, he said.
The incident, apparently the worst of its kind in the country's history, also left thousands of people homeless across the city of Freetown.
The increasing imports are expanding a window of opportunities for many foreign firms, including Ewbank Products Ltd, a British producer of carpet sweepers.