Taiwan's TAIEX fell 781.7 points, or 1.68%, to 45,677.46 at the close on Thursday, June 4.

Tier-2 perpetual bond issuance by Chinese commercial banks accelerated into June. As of June 3, banks issued 22 Tier-2 perpetual bonds year-to-date totaling 646 bln yuan; April issuance alone was 315 bln yuan, a multi-year high for the month. Market participants attribute the pickup to faster regulatory approvals, a low-rate window that lowers funding costs, and special government bond injections supporting bank capital. YTD issuance yields have declined sharply versus the same period in 2025, with a minimum of 1.9% and an average of 2.03% through June 3. Tianfeng Securities’ fixed-income chief analyst Tan Yiming said funds were the main buyers in May, drawn by relatively wider credit and product spreads.

U.S. Secretary of State Rubio said Iran is responding to transit operations in the Strait of Hormuz with attacks on regional targets.