Group 1 - Tianai Technology experienced a 5% decline, trading at 57.54 CNY per share, with a transaction volume of 609 million CNY and a turnover rate of 2.95%, resulting in a total market capitalization of 21.084 billion CNY [1] - Jiangsu Tianai Technology Co., Ltd. specializes in the research, production, and sales of nano-scale carbon materials and related products, with 98.04% of its main business revenue coming from carbon nanotube conductive pastes [1] - The company was established on January 6, 2011, and went public on September 25, 2019 [1] Group 2 - Bosera Fund has a significant holding in Tianai Technology, with its Bosera SSE Sci-Tech Innovation Board New Materials ETF (588010) reducing its stake by 89,500 shares in the second quarter, now holding 253,300 shares, which accounts for 4.54% of the fund's net value [2] - The Bosera SSE Sci-Tech Innovation Board New Materials ETF has a current size of 256 million CNY and has achieved a year-to-date return of 57.22%, ranking 323 out of 4220 in its category [2] - The fund manager, Tang Yibing, has been in charge for 3 years and 86 days, with the fund's total assets amounting to 9.874 billion CNY, achieving a best return of 74.71% and a worst return of -41.93% during his tenure [2]