Hilltribe Silverware Handicraft Promotion Centre is at Moo 9 Ban Khlong Toei Khlong Lan route - 42 km Umphang this center will sell silver crafts, such as Yao Hilltribe Necklace Bracelet Earring Ring Bracelet If you are interested to watch how to make and sell as souvenirs. You can view and purchase at. Handicraft Promotion Center has. Open daily from 8:00 to 17:00 am 41/1 Mu 9, Ban Khlong Toei, Khlong Lan-Umphang Road, Km. 42, Khlong Lan District. Tel 0-5573-5340..