The pressure on the price of a leaf and the price of one ton on the exchange decreased by $350 and is in the range of $14,000.
The price of is $3800, $3050 and $1880 respectively.
The state of China's economy is not bad, but this year its growth rate is lower than the previous year.
The growth rate of the world economy is also low this year compared to the previous year.
This year, an important driver of growth was the act of American buyers buying and shipping copper to America.