"So for some reason ASTI choose not to give an Update on the Asian Customer"
Maybe this is the answer
From an Article dated March 5, 2018 "A secretive joint venture between SoftBank and U.S. aerospace company AeroVironment is poised to launch an experimental solar-powered drone to deliver connectivity for 5G and the Internet of Things."
Keyword SECRET. That might explain lack of news in general and more Non Disclosure Agreements. (They never PR'd the Solar Cruiser)