Weekly Report: what happened at BYSI last week (0817-0821)?

Last week BYSI had an overall loss of -14.27%, the stock price moved from 0.84 to 0.7201, last week's high was 0.84, the low was 0.6699, and the cumulative volume was 719.01K.

● BYSI reached a 52-week down last week on 21 August, quoting 0.7201.