Tibetan incense producers stick to old traditions
Tonba Township in south-west Tibet is the hometown of incense production.
Among its 473 housholds, 239 can make Tibetan incense. Their annual income is more than $1.5m (£1m).
Watermills here are turning day and night to process the materials needed for Tibetan incense, which has a 1,300-year-old history.
Arif Shamim reports.