Phu Nam Ron,[4] a transnational cross-border point at the western end of the sub-district, is expected to gain in importance if the planned Dawei Port Project goes ahead, along with a highway and a railway line between Bangkok and that harbor.

[5] In the year 1961, Per Søresen, a native of Denmark, led a Thai-Danish excavation team in the Ban Kao archaeological expeditions at a site that was approximately 400m off of the southern banks of the Khwae Noi river.

Other findings, like those of the Thai-Danish Prehistoric Expedition who excavated Ban Kao from 1960 to 1962, found skeletons with short ovoid skulls and medium and broad faces.

[2] The burials found at the Bang Site Settlement of Ban Kao have revealed many animal remains, such as tortoise shells and pig skulls.

This is supported by carbon dating of ceramic and bowl fragments found at the site of Ban Kao and supports the theory of native traditions playing a bigger role in the development of new metals and tools rather than the dominating theory that China had introduced metals like bronze and iron to South East Asian sites like Ban Kao.

The interpretation drawn from the Thai-Danish excavation team notes that the Lung-Shan migration was the most influential out of many cultures that settled the Ban Kao area.

[16][17] Van Heekeren managed to hold on the stones when moved to Japan in June 1944, and hid them underneath a wooden floor.