There are only 4 GaAs Chip producer in the world:
2 Japan, 1 China and 1 Germany the last one has a market share of over 30% and belongs to Wacker and Infineon (Siemens subsidiary)
Just take a look: http://www.freiberger.com/en/products/gaas-wafers.html
I would say could be a opportunity and a fast track solution or ?