Is Tik Tok Zhang Guangxing's calligraphy and painting true?

It's true. Zhang Guangxing, 1950 was born in Huantai County, Zibo City, Shandong Province, and holds a master's degree in economics from Nankai University. Zhang Guangxing's calligraphy and painting works are collectible, authoritative and authentic. According to the transaction data of the auction online platform, Zhang Guangxing's works cost RMB 12000 to 15000 per square meter.