wanjiao one (chinese: 碗礁一号, wanjiao yihao) is an ancient chinese merchant ship that sank off the coast of pingtan county of fujian province, china. loaded with more than 10,000 pieces of blue-and-white porcelain dating back to the reign of the kangxi emperor (1654-1722) in the qing dynasty (1644-1911), it was discovered in 2005 and the shipwreck was fully excavated in 2008.