no website on file — from open-source research, nothing to check against
Zheng Xiongwen's workshop — part of 'Shanhua Ceramics'; 30+ years in the industry, 23 patents, 260+ copyrighted works. Filled a gap in 'white porcelain + painting' technology.
website not found; exhibitions in Beijing and 6 major cities
The source export carried a verification date of 2026-08-16 — later than today, so the check could not have happened. The mark was removed; the original value is kept in the data.