Longchang Yixinyuan Food Co., Ltd. has laid out more than 3,000 mu of camellia oleifera planting bases, building a complete industrial chain from camellia cultivation, fresh fruit pressing, and deep processing to brand sales. Mastering multiple patents in camellia grafting cultivation and cold-press extraction, it uses 5A cold pressing and supercritical biological extraction processes to retain the natural nutrition of camellia oil, and has built two standardized camellia oil filling production lines, capable of processing 500 tons of camellia seeds and producing more than 200 tons of refined camellia oil annually.