no website on file — from open-source research, nothing to check against
Legendary producer of qingzhuan (青砖茶) and mizhuan (米砖茶); 'Zhonghua Laozihao', sole heir of the 'Chuan' (川) brand. Technology inscribed on the UNESCO Intangible Cultural Heritage list (2022).
source: sohu.com — 赵李桥茶厂川字茶; annual volume >5000 tons
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.