 FREMONT, Calif., Dec. 03, 2020 GLOBE NEWSWIRE -- AXT, Inc. NasdaqGS: AXTI, a leading manufacturer of compound semiconductor substrates, today announced that it has completed the ramp of its gallium arsenide substrate shipments for its major customer, OSRAM, from its new, state-of-the-art manufacturing facility in Dingxing, China. In March, OSRAM finished its qualification of the new facility and began accepting a portion of its order volume from Dingxing, which it has continued to ramp throughout the year. 