In general you won't find any traditional loin looms left of the Minang People in Minangkabau (Padang) on Sumatra in Indonesia. Most of the Minang changed to a significant Malaysian-type frame loom for commercial production. But it seems some few may have survuved.
Some ethnic groups on Sumatra keep going on using a traditional loin loom, while others changed to frame looms by the influence of Indian cotton weaving techniques coming in by Malaysia.