Group 1 - The stock price of Yangzi New Materials experienced fluctuations on August 4, opening at 4.18 yuan, reaching a high of 4.25 yuan, a low of 4.00 yuan, and closing at 4.12 yuan, down 1.90% from the previous trading day [1] - The company specializes in the research, production, and sales of new building decoration materials, including various types of decorative boards and rolls [1] - The company is registered in Suzhou, Jiangsu Province, and belongs to the renovation and building materials industry sector [1] Group 2 - On that day, the net inflow of main funds was 16.58 million yuan, with a cumulative net inflow of 30.99 million yuan over the past five trading days [1] - There was a rapid rebound in stock price, with a reported price of 4.17 yuan at 13:04, showing an increase of over 2% within five minutes [1]