In addition to the official kilns, the five famous kilns in the Song Dynasty were actually exported. At that time, the export porcelain was mainly cyan and white, especially celadon, of which Longquan celadon was a special case. Longquan is located in the south of today's Zhejiang Province, near Fujian. Waterway connects Fujian and Zhejiang, with Quanzhou and Mingzhou as export bases and Wenzhou and Yangzhou as export bases. In order to prevent the outflow of copper coins in foreign trade, in the twelfth year of Jiading, Song Ningzong (12 19), it was stipulated that silk, silk and brocade were the main foreign goods, and it was forbidden to use gold, silver and copper coins. It was this move that greatly promoted the export of porcelain, and the porcelain making industry in Longquan kiln flourished.
Longquan celadon exported in that year can be said to be all over Southeast Asia and even Middle East and Africa, among which Japan, South Korea, the Philippines, Indonesia, Vietnam, Cambodia, Syria, Egypt, Kenya and other places have related records. It is said that people in New Guinea usually bury Longquan celadon by the sea, and only use it on festivals. It can be seen that Longquan celadon is not only loved by local people, but also becomes a very precious musical instrument.
Similarly, in Borneo, the porcelain exported by Longquan is often preserved and passed down from generation to generation as a family heirloom. "Egypt's Ayub dynasty and Mamluk dynasty, the court received a large number of Longquan celadon. Saladin, the founder of Ayub Dynasty, gave Longquan celadon as a high-grade gift and 40 pieces to Sultan nuriddin of Damascus at one time. Islamic burial custom does not allow burial with objects. Rich people use China porcelain such as Longquan celadon to decorate the pillars outside the tomb and in front of the tomb, and also use them to decorate the solemn Mihalab in the main hall of the mosque, indicating the lofty position of Longquan celadon in the eyes of East Africans. "
Even abroad, there are many imitations of Longquan porcelain. For example, 70%-80% of the ceramic fragments piled up in the Egyptian Fausta site are Islamic ceramic fragments imitating Longquan porcelain.