The Panzhihua Steel & Vanadium, Panzhihua Titanium Industry and Great Wall Shares that form the Pangang system, which have been range-bound recently, began to "commit suicide" at the same time during today's early trading session, and then fell by the daily limit near 11:00 AM! Why did they suddenly plummet intra-day when the reorganization has been positively viewed by market players and many individual investors?