Answer:
By exporting Opium to China.
Step-by-step explanation:
To gain power in China and shift the balance of trade, Great Britain undertook the opium trade. Chines goods such as silk, tea and porcelain pottery had a great demand in Europe but there was a little demand in China for the goods manufactured in Europe. Consequently, the Europeans had to pay in gold or silver for Chinese products. The opium trade, which produced a regular demand among Chinese customers for opium shipped by the West, determined this continuing trade imbalance.