1. Purchase through online platforms, such as Taobao, JD.COM and other e-commerce platforms. There are also many Chinese herbal medicine suppliers in Puning area on these platforms, which can be directly contacted for purchase.

2. Buy from the local wholesale market of medicinal materials in Puning, such as the wholesale market of medicinal materials in Puning County. These markets are the distribution centers of local Chinese herbal medicines, with abundant medicinal resources and suppliers.

3. Contact local drug dealers or purchasing agents, who can help to contact local drug suppliers in Puning and provide a series of procurement, transportation and other services.