no website on file — from open-source research, nothing to check against
Pu'er museum and collection agency; collection of antique teas from the Ming period and the Yinji era, including 'red mark' teas.
website not found; source: sohu.com — 第23届深圳秋季茶博会
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.