Answer: The Japanese companies invest in Brazil in order to cut cost.
Explanation:
Since Brazil is one of the world's lowest-cost producers of ethanol and soybeans. Japanese corporations investing heavily in Brazil to lease large tracts of land to grow soybeans for export to Japan, are doing this in order to minimize their cost.
Growing soyabeans in Brazil is cheaper since there's a lower cost of producing it when compared to the higher cost of producing it in Japan. This in turn, helps the Japanese companies reduce their cost as the cost of factor Input is reduced and also the Japanese companies can make more profit.