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Maiwell Technology rose more than 11% to a record high, and announced a breakthrough in customized high-bandwidth memory. Maiwell Technology rose more than 11% in intraday trading to US$ 121.86, with its share price reaching a record high and its market value exceeding US$ 100 billion. Maywell Technology announced on Wednesday that the company has made a breakthrough in customized high-bandwidth memory (HBM) for artificial intelligence processors. It is reported that the new artificial intelligence accelerator architecture (XPU) will increase computing power by 25%, memory by 33%, and improve energy efficiency. The company is cooperating with Micron Technology, Samsung and SK Hynix to customize HBM processors for accelerators.Countering the price limit of Western countries, Putin extended the oil supply ban. On the 13th, Russian President Vladimir Putin signed a presidential decree, announcing the extension of the counter-measures to set price ceilings for Russian oil and oil products until June 30, 2025. Putin signed a presidential decree on December 27, 2022, demanding that the supply of Russian petroleum and petroleum products to foreign legal persons and individuals who directly or indirectly use the price ceiling mechanism in their contracts be prohibited. This presidential decree came into effect on February 1, 2023, and its validity period was extended several times. In early December, 2022, EU member states reached an agreement on setting a price ceiling of $60 per barrel for Russian seaborne oil exports. The Group of Seven and Australia announced that they would implement the same price limit policy as the EU. (Xinhua News Agency)Philadelphia SE Semiconductor Index reached its highest level in more than a week, rising by 3.1%.

According to HKEx documents, Ganyuan Weike Holdings Co., Ltd. submitted an application for listing to HKEx.Market News: Riot Blockchain(RIOT.O) acquired 5,117 bitcoins for $510 million. 

Russian Defense Ministry: In the past week, the Russian army launched 15 cluster strikes against Ukrainian military enterprises and facilities. The Russian Defense Ministry said that in the past week, the Russian army launched 15 cluster strikes against Ukrainian military enterprises, Ukrainian military security energy facilities and Ukrainian military infrastructure including foreign mercenaries assembly sites.Important figures of the South Korean police were detained, and Zhao Zhihao, director of the South Korean Police Department, and Kim Fung-sik, director of the Seoul Police Department, were detained on the evening of 13th. It is reported that the Seoul Central District Court said that Zhao Zhihao and Jin Fengzhi had the possibility of destroying evidence, so they issued detention orders. According to South Korean police investigation, the two men concealed the fact that they had met with President Yin Xiyue before martial law. South Korean police arrested Zhao Zhihao and Jin Fengzhi on suspicion of civil strife in the early morning of 11th. According to Korean law, after the police urgently arrest the suspect, if there is no detention order, they must release him within 48 hours.TSMC rose more than 4%, and its first factory in Kumamoto Prefecture, Japan, was close to mass production. TSM.US rose more than 4% at the beginning of the session to US$ 199.98. According to industry sources, TSMC is committed to integrating CoWoS and SiPh, and seeks to launch co-packaged optical devices (CPO) in 2026. In addition, Apple cooperates with Broadcom to develop AI chips, and TSMC's advanced process will welcome big orders again. It is also worth noting that it is reported that TSMC's first factory in Kumamoto Prefecture, Japan is close to mass production.