authority concerns on the trade issues on US EAR

We are concerned about the authority of boost as recently arised trade issues between US and the rest of the world (especially China). We are looking forward to get your official answers for the questions below:
1. Is the boost project subject to U.S. Export Administration Regulations (EAR) and classified under ECCN 0D521? Or such AI software is subject to EAR, but not classified under ECCN 0D521?
2. Is U..S. Bureau of Industry and Security license required for exporting this project to China？