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The growth enterprise market index fell to 1%, the Shanghai Composite Index fell by 0.65% and the Shenzhen Composite Index fell by 0.93%. Securities, real estate and food consumption were among the top losers, with nearly 4,300 stocks falling in Shanghai, Shenzhen and Beijing.Southern Power Grid: In November, the installed capacity of industrial and commercial distributed photovoltaic projects was newly put into operation, with more than 500 MW. Southern Power Grid (003035) said at the institutional investor strategy meeting on December 12 that in 2024, the company will continue to give full play to the advantages of distributed photovoltaic energy-saving track, focusing on key industries with good industry prospects, strong sustainable operation ability and large electricity consumption, and increase development efforts. According to preliminary statistics, from January to November 2024, the installed capacity of industrial and commercial distributed photovoltaic projects was newly put into operation with more than 500 MW.The central bank's open market today launched a 7-day reverse repurchase operation of 205.1 billion yuan, and the operating interest rate was flat at 1.50%. Today, 190.9 billion yuan of 7-day reverse repurchase expired, and the net investment on that day was 14.2 billion yuan.

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.The Ministry of National Defense responded to the question of whether to engage in exercises: the situation is unpredictable, and the leader of the Taiwan Province region, Lai Qingde, recently "transited" Hawaii and Guam. On the morning of December 13th, Senior Colonel Wu Qian, Director of the Information Bureau of the Ministry of National Defense and spokesman of the Ministry of National Defense, answered a reporter's question on whether the PLA would conduct exercises. A: It is the sacred duty of the People's Liberation Army to safeguard national sovereignty and territorial integrity, the fundamental interests of the Chinese nation and the common interests of compatriots on both sides of the strait. Soldiers have no constant potential and water is impermanent. Whether and when to hold the exercise is up to us to decide independently according to our own needs and the struggle situation. No matter whether the exercise is held or not, the PLA will not be absent or soft in fighting for "independence" and promoting reunification. Any act of "seeking independence by relying on foreign countries" and "seeking independence by force" will be severely punished and doomed to failure.Solar energy and other new companies have set up photovoltaic power generation equipment business. The enterprise search APP shows that recently, China Energy Saving Ledebao Solar Technology (Delingha) Co., Ltd. was established, with Du Hu as the legal representative and a registered capital of 1 million yuan. Its business scope includes: sales of solar thermal utilization equipment; Lease of photovoltaic power generation equipment; Ecological restoration and ecological protection services, etc. Enterprise investigation shows that the company is jointly owned by China Energy Saving Solar Technology Co., Ltd. and Qinghai Laidebao New Materials Co., Ltd., a wholly-owned subsidiary of solar energy.

Beijing Torch Science and Technology Innovation Fusion Incubation Center was established. Yesterday afternoon, the establishment of Beijing Torch Science and Technology Innovation Fusion Incubation Center and the "IQ Talk" lighting ceremony were held. Shan Zhongde, Vice Minister of the Ministry of Industry and Information Technology, and You Jun, Member of the Standing Committee of Beijing Municipal Committee and Minister of Organization Department, attended the event and delivered speeches. Shan Zhongde said that the Ministry of Industry and Information Technology and Beijing supported the establishment of an innovative center for intelligent robots, and promoted the creation of innovative sources and application demonstration highlands for intelligent robots. With the joint support of Beijing Talent Bureau and Torch Center of the Ministry of Industry and Information Technology, the construction of Torch Science and Technology College has achieved positive results. The Ministry of Industry and Information Technology and Beijing will continue to work together to forge ahead and create a new mechanism, new model and new benchmark for the integrated development of science and technology, talents and industry.The three major stock indexes opened lower and went lower. The Shenzhen Stock Exchange Index and the Growth Enterprise Market Index all fell more than 1%, and the Shanghai Composite Index fell 0.88%.Tik Tok bean bag concept stocks opened lower and went higher, three-dimensional communication rose daily, Zhejiang-Wenzhou Internet, Zhangyue Technology and Guangbo shares rose sharply.