After the grand opening of the 2010 Shanghai World Expo in China, a special collection of the World Expo in China-15kg Hetian Jade “Crown of the Orient · World Expo Jade Seal” was officially released. Its Shape and size is the largest in history, which is certified as “the largest imperial seal in history” by Guinness records .

The licensed commodity “Crown of the Orient · World Expo Jade Seal” of the Shanghai World Expo is Based on the national Treasure of the imperial Palace “The Treasure of Emperor Qianlong”, which is carved by hand with 15 kilograms of  Hetian jade. Today, when Hotan jade is almost exhausted, it is rare to be able to create a 15 kg Hetian jade “Crown of the Orient · World Expo Jade Seal”.

“Crown of the Orient · World Expo Jade Seal” is composed of an expert group of national treasure masters with great reputation in the fields of domestic culture, culture and art, and arts and crafts. Yang Xin, former vice president of the National Palace Museum, is the chief designer and Wen Huaisha, a master of traditional Chinese studies, is the general cultural adviser and personally inscribes the jade seal inscription, Wang Yushu, a seal engraver of the National Palace Museum, and Gu Feng, a Chinese jade carving master, Zhang Guangwen and Zhang Rong, researchers of the Palace Museum, are authoritative critics.