The Jing script (also known as the Zinan script) is thought to have been developed around the 13th century for writing the Jing language. The origins of the Jing people are difficult to trace, but according to oral tradition and old Vietnamese texts they originated in Vietnam. The Jing ethnic community now lives in the border of China and Vietnam, mostly in coastal communities. The script is used only by a small group of people; the majority of Jing people now speak Cantonese, which they write with the Han script.
This script is not currently recognized by the  ISO 15924 standard, but is included in ScriptSource for research purposes. If you have any information on this script, please add the information to this site. Your contributions can be a great help in refining and expanding the ISO 15924 standard. The  Script Encoding Initiative is working to support the inclusion of this script in the standard, and contributions here will support their efforts.