Probably nothing to do with POET, at least, it shows that there is some real interest in GaAs and GaN.

WILSONVILLE, Ore., Nov. 30, 2015

...Xiamen San'an Integrated Circuit Co., Ltd. (San'an IC) is located in the Xiamen Torch High-tech Industrial Development Zone, with a total investment of three billion yuan on a planned area of 281 acres. It is one of Fujian Major Industrial Projects 2014-2018 and Xiamen Key Projects 2015, and an emerging industry of strategic importance with government support. San'an IC will build new production lines for gallium arsenide (GaAs) and gallium nitride (GaN) epitaxial wafers, as well as those for gallium arsenide (GaAs) high-speed semiconductor chips and gallium nitride (GaN) high-power semiconductor chips targeting microelectronic devices for wireless communication. Risk production is scheduled to start in the second half of 2015, and San'an IC will, upon volume production, become the first fab in China to combine large-scale R&D and manufacturing capabilities for compound semiconductor chips.... LINK