1.In April, 2023, the ban on tin mine export issued by Wa State had a greater impact on Shanghai Tin than Lunxi, indicating that Shanghai Tin's ability to resist risks was slightly weaker than Lunxi's, so Lunxi had a greater impact.
2. Lunxi 20 17 was listed, and Shanghai Tin 20 19 was listed. In terms of qualifications, Lunxi is old, so Lunxi has great influence.