Mexican authorities have reduced steel and aluminum imports from China, South Korea and India by about 30%, equivalent to 13 billion pesos, Reuters reports. The government also canceled about 1,100 metal plant registrations, according to Economy Undersecretary Luis Rosando Gutierrez. Tighter controls are aimed at preventing re-exports of metals to the United States while circumventing trade agreements and should help Mexico City get Washington to ease tariffs.