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Yihang Smart rose more than 1% before the market. Shenzhen built the world's leading low-altitude economic industrial ecology, and EH.US rose 1.42% to US$ 15.71 before the market. In the news, the key low-altitude new infrastructure project in Nanshan District, Shenzhen, Guangdong Province was officially launched recently. The project will deploy low-altitude new infrastructure to build a world-leading low-altitude economic and industrial ecology. According to industry insiders, the development prospect of low-altitude economy is broad, and the construction of low-altitude infrastructure will be accelerated. At present, China's low-altitude smart network and low-altitude airspace management need to be improved, related infrastructure and technology need to be broken, and business models still need to be explored.The Houthi armed forces in Yemen said that they attacked two American destroyers and three accompanying ships in the Gulf of Aden.African stock market | South Africa's stock index closed down more than 0.4%, led by basic metal mining stocks Glencore, Anglo-American and BHP Billiton. On Tuesday (December 10th), South Africa's FTSE /JSE Africa Leading 40 Tradeable Index closed down 0.44% to 78,703.60 points. Glencore, a constituent stock, closed down 2.56%, Anglo-American Company fell 1.99%, BHP Billiton Group fell 1.74%, ranking third from the bottom, Jintian Company rose 0.75%, ranking sixth, and harmony Gold rose 0.81%, ranking fifth. The South African rand is currently down 0.56% against the US dollar, temporarily reporting 17.8720 rand, which is the highest level since November 11, which was set on Monday.

U.S. Department of Agriculture (USDA): It is estimated that the ending inventory of corn in the United States is 1.738 billion bushels, and analysts expect 1.90192 billion bushels. USDA had previously expected 1.938 billion bushels.United Nations report: Three quarters of the earth's land is gradually dry due to climate change. The 16th Conference of the Parties to the United Nations Convention to Combat Desertification (COP 16) was held in Riyadh, Saudi Arabia, from December 2 to 13. On the 9th, the United Nations released a report during the meeting, saying that about three-quarters of the world's land has gradually become dry due to climate change. The report found that in the 30 years before 2020, about 77.6% of the world's land became drier than before. At present, except Antarctica, the dry land area accounts for about 40% of the global land area. Between 1990 and 2020 alone, the global dry land area increased by 4.3 million square kilometers.Israel Defense Forces: Since the collapse of the Assad regime, we have attacked 320 targets in Syria and destroyed more than 70% of the military capabilities of the Syrian army.

White House: We are discussing with Turkey the current situation of detention facilities in Syria and our concerns about the possibility of opening these facilities.Nanshan aluminum: It is planned to buy back shares at a price of 300-600 million yuan and use it for cancellation. nanshan aluminum announced that the company plans to buy back shares by centralized bidding, and the amount of repurchase is not less than 300 million yuan (inclusive) and not more than 600 million yuan (inclusive), and the source of funds is the company's own funds. The repurchased shares will be used to cancel and reduce the registered capital of the company. The maximum price of repurchased shares shall not exceed 6.24 yuan/share.Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization: It is estimated that about 10,000 people have been displaced in Syria since the Syrian opposition began to attack. We have delivered trauma and surgical supplies to Damascus Hospital and made efforts to provide more material support.