SPX = 52% Sanan IC/ 48% POET

 Optical engines for 100G and 200G applications will be sold exclusively world-wide by SPX. 400G optical engines will be sold by SPX in the China territory while the Company will sell 400G optical engines to customers in the United States, Europe and elsewhere outside the China territory. 

...  Volume production of optical engines designed for specific customers is expected to begin in 2022, with high volumes expected to ramp later that year and into 2023.