This past week at Pennsic there was a broken blade. Most evidence says it was a Hanwei blade, but there's a small chance it was from a different, Chinese manufacturer. This blade broke into 5 pieces, with flat ends showing a lot of crystallization (evidenced by the sparkles). No injuries occurred.
Trimaris has currently banned all Hanwei blades for all Trimaran fencers, with discussions to occur at Trimaris Coronation, first weekend of September.
These blades are NOT banned at the Society level.