A worker paints on a porcelain product at Yunzhiwei workshop in Mingfangyuan porcelain industrial park in Jingdezhen, East China's Jiangxi province, Dec 22, 2015. Porcelain artists from Yunzhiwei workshop successfully replicated the rough red glaze, which was extremely rare even in the ancient Royal Kilns. Its refined noble character quickly appeals to a large number of collectors. [Photo by Liu Xuanyi/chinadaily.com.cn]