Humban-haltash III or Umanaldash was the last major ruler of Elam.
He belonged to the Humban-Tahrid, "Neo-Elamite", dynasty (c.830–521 BC).
He became king 650 BC.
During his kingdom, the Assyrian people attacked Elam and occupied Madektu.
This facilitated their way to the Karkheh river.
In 647 BC, Susa fell in the Battle of Susa and Ashurbanipal captured Humban Haltash.
Ashurbanipal wrote:
Susa, the great holy city, abode of their gods, seat of their mysteries, I conquered.
I entered its palaces, I opened their treasuries where silver and gold, goods and wealth were amassed... I destroyed the ziggurat of Susa.
I smashed its shining copper horns.
I reduced the temples of Elam to naught; their gods and goddesses I scattered to the winds.
The tombs of their ancient and recent kings I devastated, I exposed to the sun, and I carried away their bones toward the land of Ashur.
I devastated the provinces of Elam and on their lands I sowed salt.

— Ashurbanipal
Humban-haltash III or Umanaldash was the last major ruler of Elam. He belonged to the Humban-Tahrid, "Neo-Elamite", dynasty (c.830–521 BC). He became king 650 BC. During his kingdom, the Assyrian people attacked Elam and occupied Madektu. This facilitated their way to the Karkheh river. In 647 BC, Susa fell in the Battle of Susa and Ashurbanipal captured Humban Haltash. Ashurbanipal wrote:
Susa, the great holy city, abode of their gods, seat of their mysteries, I conquered. I entered its palaces, I opened their treasuries where silver and gold, goods and wealth were amassed... I destroyed the ziggurat of Susa. I smashed its shining copper horns. I reduced the temples of Elam to naught; their gods and goddesses I scattered to the winds. The tombs of their ancient and recent kings I devastated, I exposed to the sun, and I carried away their bones toward the land of Ashur. I devastated the provinces of Elam and on their lands I sowed salt.
— Ashurbanipal
Humban-haltash III