Tunnel Corporation: Vice President Li Bo resigns due to job changes.

Sina Finance reported on March 31 that Tunnel Holdings announced that the Board of Directors recently received the resignation report from Vice President Li Bo. Due to job changes, he applied to resign from the position of Vice President on March 31, 2026. The original term of office was scheduled to expire on January 26, 2025. After resigning, he will not serve in the listed company or its holding subsidiaries, and there are no outstanding public commitments. Li Bo's resignation report will take effect from the date of delivery to the Board of Directors, and his departure will not affect the normal production and operation of the company.