[Hong Kong’s Hang Seng Index closed up 1.18% PCB concept stocks surged] On September 21, Hong Kong’s Hang Seng Index closed up 1.18%, and the Hang Seng Technology Index rose 0.4%. PCB concept stocks rose sharply, Guanghe Technology rose by more than 14%, and Shenghong Technology rose by nearly 13%; the biomedical sector led the gains, Yaojie Ankang rose by more than 10%, Junshi Biotech rose by more than 12%, Yinnuo Pharmaceutical rose by more than 7%, and Hengrui Pharmaceutical rose by more than 6%; Chinese real estate stocks strengthened, Sunac China rose by more than 12%, and Vanke rose by more than 5%. Gold stocks generally fell, with China Gold International falling by more than 6%, Lingbao Gold falling by 5%, and Laopu Gold falling by more than 3%.