Not that I think it really matter, but for the record, the HALT was an automated circuit breaker due to the quick drop (and not a request from SONA pending news release):
VANCOUVER, BC, Aug. 6, 2020 /CNW/ - The following issues have been halted by IIROC:
Company: Sona Nanotech Inc.
CSE Symbol: SONA
All Issues: Yes
Reason: Single-Stock Circuit Breaker
Halt Time (ET): 2:21:00 PM