Copper prices hit their highest level since mid-2022 on expectations that China’s reopening will boost demand for industrial metals. The rally in copper, which on Wednesday traded above $9,000 a metric ton on the London Metal Exchange for the first time since June, is broadly a good sign for the global economy. Copper is used in construction, cars, machinery, consumer goods and energy infrastructure. Prices typically rise when demand picks up speed in line with economic growth. China is by far t