Announcement on Preliminary Earnings Estimate for 2025

Earlier from Hangzhou Huaguang Advanced Welding Materials

• Announcement on Obtaining Reply of Registration Approval of Application for Issuance of Shares to Specific Objects from China Securities Regulatory Commission via Simplified ProcedureFeb 27
• Announcement on Expected Increase in Performance for 2025Jan 30
• Announcement on Approval of Application for Issuance of Shares to Specific Objects via Summary Procedure by the Shanghai Stock ExchangeJan 27
• Announcement on the Acceptance of Application for Issuance of Shares by Summary Procedure to Specific Objects by the Shanghai Stock ExchangeJan 23
• Announcement on the Results Shareholding Reduction by Shareholders Holding Over 5% Shares, Directors and Senior Management Member and Equity Change of Shareholders with Over 5% Shares Reaching 1% ScaleJan 9

Later from Hangzhou Huaguang Advanced Welding Materials

• Announcement on Signing a Tripartite and Four-party Supervision Agreement over Deposit in Special Account of Raised FundsMar 14
• Announcement on the Results of Issuing Stocks to Specific Objects and Changes in Share Capital by Summary ProcedureMar 24
• Announcement on Using Idle Raised Funds Temporarily for Supplementing Current CapitalApr 3
• Announcement on Resolutions of the 1st Extraordinary General Meeting in 2026Apr 22
• Notice on Convening the 2025 Annual General MeetingApr 23