[Bailun shares: net profit in the first quarter increased by 104.73% compared with the same period last year. It is proposed to invest 600 million yuan in the construction and production base expansion project]. According to the announcement of Bailun shares, the operating income in the first quarter was 760 million yuan, an increase of 41.11 percent over the same period last year; net profit was 188 million yuan, an increase of 104.73 percent over the same period last year; and basic earnings per share were 0.18 yuan. The company also disclosed its annual report that net profit in 2022 was 521 million yuan, down 21.74% from the same period last year. In addition, the company plans to invest 200 million yuan in the construction of Tianjin production base expansion project, 300 million yuan investment in Guangdong production base expansion project, and 100 million yuan investment in Shanghai production base expansion project.