Evolution of cold pit organizational system

At the beginning of 2002, the original Dakeng Town was classified as a cold pit.

In September, 2005, Cold Pit was listed as a pilot project of technological innovation of Chinese herbal medicines in Zhaoqing by Zhaoqing Science and Technology Bureau.

From June 5438 to February 2005, Lengkeng was listed as a professional town for scientific and technological innovation of Chinese herbal medicines by the Provincial Science and Technology Department.

In August of 20 14, Lengkeng became the only national key town in Huaiji County.