Vast majority of Apple A9 chip orders are going to Samsung and Globalfoundries
Samsung is said to be ready to produce 30,000 to 40,000 12-inch wafers each month in order to feed its 14nm FinFET production. Demand for the final products from the process is led by both Apple and by Samsung itself. Besides Apple's A9 chip, Samsung will be in the middle of rolling its own 14nm Exynos chips off the assembly line.
Figuring out who will make the next Apple Ax chip has become a parlor game. Usually, it is between Samsung and TSMC. Samsung has the edge now because it developed the 14nm FinFET process technology, which it licenses to other chip makers like Globalfoundries. The 14nm process allows the Apple A9 chip to be 20% more powerful while using 35% less battery life.