They used latex from trees to create rubber
The correct answer should be reward. In order to reward buyers for buying, you put the prices lower even though in reality you could be making the same mount of money. You thus decide to earn less money but you reward your buyers for being loyal or you get them to buy.
They wanted to find more natural resources, and they also wanted to seek out new markets for European goods.
North Korea pushed South Korea all the way to Pusan.