The “SaYa” brand was established in 2020 by six co-founders under the products of Kullalin Company Limited. The brand designs represent the great combination between the Asian and Western Styles. The brand is great glass designs by Thai designers. The design products are made by pewter which is consisting of 97% of tin, and 3% of copper and antimony. It, therefore, is well understood as lead-free pewter and such being safe. The designed products are efficiently done with great detailed handcraft. The products have variety designs with high qualities of glasses.