Hong-wu: Year 4, Month 9, Day 28
5 Nov 1371
The Ministry of Revenue reported that Korea and San-fo-qi had come to offer tribute, noting that the Korean ship had berthed at Tai-cang and that the ship from San-fo-qi had berthed at the port of Quan-zhou. The ministry requested permission to tax their goods. It was Imperially commanded that the goods not be taxed.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 3, page 1279