重磅发布会，今日上午10时；上海发布楼市新政……盘前重要消息还有这些

Group 1 - The article highlights the issuance of new shares by Sanxie Electric with a subscription code of 920100 and an issue price of 8.83 yuan per share, with a subscription limit of 855,000 shares [1] - The article discusses the release of important policies aimed at promoting green and low-carbon transformation, including the establishment of a national carbon market by 2030 [4] - Shanghai's new housing policy allows for unlimited home purchases for eligible buyers outside the outer ring, treats single adults as families, and removes distinctions in mortgage rates for first and second homes [4] Group 2 - Pinduoduo's Q2 financial report shows a revenue growth slowdown to 7% year-on-year, totaling 104 billion yuan, with a net profit of 30.75 billion yuan, down 4% year-on-year [8] - Several companies reported significant profit increases, including Zhengyu Industrial with a net profit of 119 million yuan, up 420.67% year-on-year, and Nengte Technology with a net profit of 339 million yuan, up 496.36% year-on-year [9][11] - Tianfeng Securities expresses optimism about the long-term investment opportunities in China's AI sector, citing substantial returns from AI investments by internet companies [13]