no website on file — from open-source research, nothing to check against
State factory 勐海县黎明茶厂, brand '八角亭'; the only large state tea factory in Menghai area, legendary series 7540.
website not found; the first puer tea factory in Menghai
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.