Is Chu Huaijun's calligraphy auction valuable?

Worth some money.

Mr. Chu Huaijun's background and achievements, as a calligrapher, are recognized and praised. He studied under the famous calligrapher Mr. Liu Bingsen and participated in calligraphy exhibitions at home and abroad many times, winning various awards and honorary titles. His works have been compiled into authoritative publications such as Dictionary of Contemporary Calligraphers in China and Who's Who of Contemporary Art in China.