China’s Tin Supply Tightens as Myanmar Region Raises Export Tax

China’s supply of tin — used in everything from packaging to circuit boards — has been dealt another blow after a key mining region in neighboring Myanmar raised export taxes.

Wa state, an autonomous area in Myanmar controlled by an armed ethnic group, has placed a tax in kind of 30% on all tin concentrate exports from Feb. 7, according to a notice from its economic planning committee viewed by Bloomberg. Previously, only better quality concentrate was subject to the tax, while poorer grades were charged less onerous cash duties, researcher Mysteel Global said.

Myanmar is the world’s third largest ...