The rise helped to narrow the sector's trade deficit in July.
The two neighbors need to work together to develop shared mining and environmental resources, Argentina's mining secretary Daniel Meilán tells BNamericas.
Exploration successes have come in thick and fast in Mexico in recent weeks, with 1,000g/t-plus grades found over short sections at existing mines and projects.
The latest news from junior mining companies operating in Brazil, Peru, Chile, Mexico and Nicaragua.
A judge ruled that changing the status of the protected area in the Amazon rainforest requires a federal law.
The Australian operation is Rio Tinto's 16th iron ore mine and will produce low-phosphorous ore.