One of the Japanese trading houses that Buffett owns agrees a $5.3 billion investment in an untapped iron-ore project - MarketWatch
1. Mitsui invests $5.3 billion in Rhodes Ridge iron-ore project. 2. Acquisition gives Mitsui a 40% interest in a major untapped resource. 3. Rio Tinto supports the project with existing infrastructure. 4. Rhodes Ridge expected to add 40 million tons of iron ore. 5. Berkshire Hathaway’s stake reinforces Mitsui's financial stability.