Question

how many bullion they pay for buying tea in topic the trade with china

Answer 1

U.S. trade officials chose not to tax Chinese tea imports in the latest round of tariffs, but tea and coffee do appear among the 5,207 categories of U.S. products China will tax at a higher rate.
On Sept. 24 the U.S. announced it would tax $200 billion worth of Chinese goods at 10 percent, a rate that may rise to 25 percent in 2019.
The next day China levied tariffs on about $60 billion worth of imports from the U.S. and vowed to “outlast” Washington D.C. in a trade war that has escalated since spring.  China’s latest round of tariffs, now levied on $113 billion of U.S. exports, are assessed at two levels, 5 percent and 10 percent. The cumulative tax on processed tea crossing the Chinese border will now be 35 percent