China Seawater Pearl, also known as Nanzhu, is a geographical indication product of Guangxi. It is a pearl produced by Marsh's mother-of-pearl. The South Pearl is large, round and glamorous. It is known as the treasure of the country and is well-known in the world. It is known as "West Pearl is not as good as East Pearl, and East Pearl is not as good as South Pearl". Hepu Nanzhu is both a luxurious accessory and a precious medicinal material.

Handmade is the biggest feature of Hepu Daycake, and it is also the essence of historical precipitation. As early as a few hundred years ago, Su Dongpo, a poet of the Northern Song Dynasty, once settled in Hepu, which coincided with the Mid-Autumn Festival. Because of his taste of the local food called "tea cake", because of its unique taste, he couldn't help but write "a small cake like chewing moon, with crisps and clams in the middle. Hanging about Hepu people, Changchun Dongpo poetry." Beautiful poetry. Therefore, "Hepu" is located in a small county town in the southwestern part of Guangxi. It has a thousand years of tea cakes and the traditional Mid-Autumn Festival.