Group 1 - The top five Chinese concept stocks that experienced the largest declines in closing prices are: SOS Ltd down 54.5%, Feitian Zhaoye down 33.33%, Shangao Life Sciences down 22.93%, Youlan International down 16.88%, and Luda Technology down 14% [1][1][1] - SOS Ltd's latest price is 2.730 with a decrease of 3.270, resulting in a trading volume of 4.4103 million [1][1][1] - Feitian Zhaoye's latest price is 1.100 with a decrease of 0.550, resulting in a trading volume of 16.9591 million [1][1][1] - Shangao Life Sciences' latest price is 0.1684 with a decrease of 0.0501, resulting in a trading volume of 1.2677 million [1][1][1] - Youlan International's latest price is 1.920 with a decrease of 0.390, resulting in a trading volume of 0.4144 million [1][1][1] - Luda Technology's latest price is 4.300 with a decrease of 0.700, resulting in a trading volume of 0.3086 million [1][1][1]