import during the Song dynasty, such that people of Quanzhou be they rich or poor can afford to buy the incense to burn at the end of the year as a sacrifice to Heaven. Lambri in Sumatra was mentioned as producing the best quality lakawood. The value of lakawood however increased during the Ming dynasty. The product was mentioned in accounts of Zheng He's voyages such Yingya Shenglan by Ma Huan during the Ming dynasty, and its value was considered high enough to be presented to the imperial court as tributes by various ports of Sumatra as well as Siam. References Wood Incense material