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South Korea's exports increased by 12.4% and imports increased by 11.6% from December 1 to 10. South Korea's chip exports increased by 43% year-on-year from December 1 to 10.AI can solve partial differential equations thousands of times faster than before, and partial differential equations play an important role in engineering and science. In a recent study, scientists from Johns Hopkins University in the United States have developed a new artificial intelligence (AI) model called "Differential Mapping Operator Learning" (DIMON), which can solve complex partial differential equations on personal computers, thousands of times faster than before, and is expected to "show its talents" in the fields of aerospace, automobiles and medicine. Related papers were published in the journal Nature Computational Science published on the 9th.The chief operating officer of BlackRock seeks to improve its technical and artificial intelligence capabilities. The chief operating officer of BlackRock, the world's largest asset management company, said on Tuesday that the company is looking for opportunities to expand its technical capabilities, including in the field of artificial intelligence. Rob Goldstein, chief operating officer of BlackRock, said in an interview at a conference in new york: "There are always some capabilities that can be improved."

More than 700 listed companies have announced the replacement of the audit institutions in 2024. According to incomplete statistics, since the beginning of this year, the number of listed companies planning to replace the accounting firms in 2024 has exceeded 700. Among them, the number of listed companies that intend to change accounting firms in October and November is 248 and 200 respectively. Looking back at the "exchange tide", three phenomena stand out: First, in order to improve the quality and ability of capital market intermediaries, the supervision of accounting firms by the regulatory authorities has been significantly enhanced. Based on the principle of prudence, listed companies collectively cancel the contract with the "problem institute"; Second, under the heavy penalty, more and more accountants choose to change their firms to practice, while listed companies choose to change their firms instead of accountants; Third, listed companies employ audit institutions through competitive negotiation, public bidding, invitation bidding, etc. In the bidding process, in order to attract more customers and increase the signing rate, the phenomenon of audit institutions reducing prices has increased. (Securities Daily)Sarah Friar, CFO of OpenAI: Corporate customers will pay (at least) thousands of dollars for using artificial intelligence (AI) tools. In the end, it will be reasonable.Galaxy Securities: Pay attention to investment opportunities in the fields of cement, consumer building materials, glass fiber, etc. The Galaxy Securities Research Report pointed out that 1) Cement: the price continues to push up, and the northern region has entered the winter peak-shifting stage. In November, the weather gradually turned cold, and the downstream market demand dropped slightly. Most provinces in the north have entered the stage of winter peak-shifting and kiln-stopping, and the kiln-stopping rate is above 80%. Under the background of improving supply and demand in the industry, cement enterprises continue to push up cement prices. 2) Consumer building materials: The retail end continued to improve month on month. In October, the retail sales of building and decoration materials decreased by 5.8% year-on-year and increased by 4.9% quarter-on-quarter. Recently, with the stabilization of commercial housing sales, the demand for consumer building materials has improved. 3) Glass fiber: the price of roving rose slightly at the end of the month, and the price of electronic yarn was temporarily stable. In November, the demand for wind power yarn and thermoplastic yarn was stable, but the demand for traditional building materials was still under pressure, which led to the general demand for roving. There are resumption of production and new ignition production lines within the month, and the annual production capacity has increased; Near the end of the month, glass fiber enterprises issued a notice of re-pricing roving and products. It will take some time for the new price to land, but it will have a certain driving effect on demand and price in the short term. 4) Float glass: at the end of the year, work will continue to support the market demand and the inventory of enterprises will be improved. In November, work was rushed to support the demand of float glass terminal, but the middle and lower reaches mainly digested the previous inventory, and the purchasing enthusiasm declined. In the context of the contradiction between supply and demand in the industry, the production capacity has been significantly reduced, and the inventory pressure of float glass enterprises has improved. Suggested attention: Beixin Building Materials, CONCH, China Jushi, etc.

CITIC Securities: The logic of "grabbing exports" is expected to support the short-term performance of China's exports. According to the CITIC Securities Research Report, in November, China's exports maintained a certain growth rate, exports to emerging markets maintained a high growth rate, and exports of mechanical and electrical products performed brilliantly. In the short term, both CCFI index and SCFI index are on the rise, and the logic of "grabbing exports" is expected to support the short-term performance of China's exports. In the long run, if the United States imposes tariffs on China, China's export performance may be dragged down. However, based on the analysis of the import share structure of the United States, the European Union, Vietnam, Mexico and other economies, we can see that the current pattern of China's trade diversification has improved compared with the last round of Sino-US trade friction, and the trade between emerging markets and China has become closer and closer. The imposition of tariffs by the United States on China may affect the bilateral trade between China and the United States more, and domestic enterprises going to sea and re-exporting trade may still be effective ways to hedge the impact of US tariffs on China.CITIC Securities: The logic of "grabbing exports" is expected to support the short-term performance of China's exports. According to the CITIC Securities Research Report, in November, China's exports maintained a certain growth rate, exports to emerging markets maintained a high growth rate, and exports of mechanical and electrical products performed brilliantly. In the short term, both CCFI index and SCFI index are on the rise, and the logic of "grabbing exports" is expected to support the short-term performance of China's exports. In the long run, if the United States imposes tariffs on China, China's export performance may be dragged down. However, based on the analysis of the import share structure of the United States, the European Union, Vietnam, Mexico and other economies, we can see that the current pattern of China's trade diversification has improved compared with the last round of Sino-US trade friction, and the trade between emerging markets and China has become closer and closer. The imposition of tariffs by the United States on China may affect the bilateral trade between China and the United States more, and domestic enterprises going to sea and re-exporting trade may still be effective ways to hedge the impact of US tariffs on China.Trump said that individuals or companies that invest more than $1 billion in the United States will get accelerated approval. US President-elect Trump wrote in a post on his social media Truth Social on Tuesday: "Any individual or company that invests more than $1 billion in the United States will get comprehensive and accelerated approval and permission, including but not limited to all environmental approvals." This is the latest sign that Trump intends to relax the supervision of federal agencies and attract more foreign investment during his second term.