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The Hang Seng Index and Hang Seng Technology Index both fell more than 1%.Guosheng Securities: AEC heavy-duty computing industry chain has entered the era of Lian Heng. Guosheng Securities Research Report pointed out that AEC(Active Electrical Cable) is an active cable interconnection scheme, which is mainly used in short-distance high-speed data transmission scenarios in data centers. 1)AEC is expected to become the first step for optical module manufacturers to penetrate downwards. Optical modules need to master photoelectric conversion and high-speed data communication, and DAC/AEC/AOC products have relatively mature technical requirements compared with single-mode/multimode optical module products with longer transmission distance. 2) Copper interconnection is widely used by large CSP not only in NVIDIA. NVIDIA used a large number of high-density copper interconnects in B series products, which made the industry re-recognize the reliability and price advantage of copper interconnects in short-distance scenes. 3) In the era of Lian Heng, domestic manufacturers still have obvious advantages. Chip manufacturers, represented by NVIDIA, have been hoping to conduct a comprehensive industry consolidation and provide customers with a complete set of solutions. What CSP manufacturers want more is the decoupling of the industrial chain, and every link such as GPU, copper connection, optical module and switch can find corresponding suppliers. The heavy volume of AEC and the rise of CSP manufacturer's independent scheme indicate that the computing power industry chain has entered the era of Lian Heng, and we are firmly optimistic about the domestic related computing power industry chain.Maotai Group had an exchange discussion with Huawei. Kweichow Moutai official news on December 13th. On December 12th, Zhang Pingan, managing director of Huawei Technologies Co., Ltd. and CEO of Huawei Cloud, visited Maotai and held an exchange discussion with Zhang Deqin, Party Secretary and Chairman of Maotai Group.

China, with the largest plantation area in the world, has become the country with the greatest contribution to greening in the world. In the past 30 years since the signing of the United Nations Convention to Combat Desertification, China has made remarkable achievements in combating desertification, especially since last June, China has launched the "Three North" project. At present, the forest coverage rate in the "Three North" project area has increased from 5% in the 1970s to 13.84%. By the end of 2023, the forest coverage rate in China exceeded 25%, the forest stock exceeded 20 billion cubic meters, and the plantation area ranked first in the world, making it the most green country in the world. (CCTV News)The game and media sectors moved up three boards in vision china, three boards in vision china, Fuchun, Reader Media, Zhewen Internet and Guangdong Media, and Kaiying Network, Shengguang Group and Tianlong Group followed suit.Shanxi Securities: Sora officially launched the AI video generation tool, which continued to iterate. Shanxi Securities Research Report pointed out that 1) On December 10th, OpenAI officially launched Sora. Compared with the version released by OpenAI in February, the new Sora launched this time added Storyboard, Remix, Re-cut and other functions, which greatly improved the video re-creation ability and optimized the video generation speed and generation method. 2) Since the beginning of this year, domestic enterprises have begun to accelerate the research and development and iteration of AI video generation products, and the product capabilities have been continuously improved and the application scenarios have been continuously broadened. Sora was officially launched, and the video creation ability was significantly improved, and it began to change from a creative tool to a productivity tool. With the continuous iteration of AI video generation tools represented by Sora, its penetration into various application scenarios is expected to accelerate in the future. On the one hand, the application layer suggests focusing on creative, design, education and other multi-modal fields, especially video generation. On the other hand, the demand for computing power in video generation model is significantly higher than that in text, focusing on AI computing power related targets.

List of stock repurchases of Hong Kong stocks: 43 stocks were repurchased by the company. On December 12, a total of 43 Hong Kong stocks were repurchased by the company, and the repurchase amount of 8 stocks exceeded HK$ 10 million. Among them, Tencent Holdings, AIA and Samsonite have the largest repurchase amounts, with the company repurchasing HK$ 704 million, HK$ 61,711,300 and HK$ 34,247,500 respectively. As of December 12, 274 Hong Kong stocks have been repurchased by the company this year, and the cumulative repurchase amount of 62 stocks during the year exceeded HK$ 100 million. Among them, Tencent Holdings, HSBC Holdings and AIA have the largest cumulative repurchase amount during the year, with the company repurchasing HK$ 104.602 billion, HK$ 40.706 billion and HK$ 31.059 billion respectively.Most gold stocks in Hong Kong stocks fell, and Lingbao Gold fell by nearly 5%. As of press time, Lingbao Gold (03330.HK) fell by 4.75%, Zijin Mining (02899.HK) fell by 2.82% and Zhaojin Mining (01818.HK) fell by 2.75%.Pacific Securities: The reversal of photovoltaic industry is about to focus on three directions. The Pacific Securities Research Report pointed out that with the continuous breakthrough of new markets and technologies, the new cycle of photovoltaic parity is accelerating, and the reversal of photovoltaic industry is about to begin. It is suggested to focus on three directions: 1) The new cycle of supply and demand is expected to start in 2025, the industry quotation and profit are expected to be restored, and the leading advantages will be gradually highlighted. In 2025, it is expected to usher in a new round of growth, including Longji Green Energy and Jingke Energy. 2) New technology fields with large cost reduction space and continuous technology iteration, such as GCL Technology and Perovskite, are expected to fully benefit; 3) The advantages of supporting facilities and leading enterprises are prominent, and emerging markets are expected to promote the rapid improvement of shipments and profits, and the advantages of leading enterprises will be further enhanced, and enterprises such as Sunshine Power and Foster are expected to fully benefit.