no website on file — from open-source research, nothing to check against
Beijing's oldest laozihao (est. 1738); the only 'halal' tea trademark, specializing in jasmine tea.
website not found; history longer than that of Zhangyiyuan and Wuyutai
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.