《元史·本纪·卷五》
诸侯王塔察儿请求设置冶炼生铁的工场，皇帝允从；又请求设立互市贸易，皇帝不准。
诸王塔察儿请置铁冶，从之；请立互市，不从。
The vassal king Tacha'er requested to set up an iron smelting workshop, which the emperor agreed to; he also requested to set up a barter trade, which the emperor refused.