All the labor and employment training centers in Guangzhou (subordinate to the Labor Bureau) should have training courses for tea artists (I know there are in Liwan District, which are held at the Southern Tea Merchants' Association), which are relatively reliable, including training and textual research, with the primary level of 800 and intermediate level 1200.

Mr. Tan of Shanghai Teahouse began to provide tea training courses several years ago. Now the courses are richer, including figures, art, tea art and flower arrangement. I remember it seems to be jointly organized with the labor bureau, so it can be verified and certified in the end. Just try it.