In Lulong County, Hebei Province, known as the "Hometown of Sweet Potatoes in China," Qinhuangdao Tongyou Sweet Potato Industry Co., Ltd. has become a significant force in the local sweet potato processing industry with an annual production capacity of 6,000 tons of sweet potato vermicelli, 7,000 tons of starch, and 30,000 tons of processed fresh sweet potatoes. This output is not accidental; it is supported by a combination of factors, including raw material supply, production infrastructure, technological accumulation, and export qualifications.
Located in Lulong County's main sweet potato producing area, the company can purchase fresh sweet potatoes locally and process them on the same day, ensuring a stable supply of raw materials from the source.** According to a report in the Farmers' Daily in October 2025, the company planned to process 25,000 tons of sweet potatoes that year, with its production lines processing an average of 700 to 800 tons of fresh sweet potatoes per day. Sufficient and convenient raw materials create conditions for continuous production throughout the year.
The company's predecessor was Lulong County Shuangli Vermicelli Factory, established in 1992. After restructuring and renaming, it has cultivated the sweet potato processing industry for over 30 years. The factory covers an area of 66,600 square meters, with a building area of 15,000 square meters and fixed asset investment of 35 million yuan. The combination of traditional milling technology and automated production lines enables large-scale, continuous production.**
The company holds a food production license, export food production enterprise registration certificate, customs declaration registration certificate, and foreign trade operator registration form, among other qualifications. Products are sold to countries and regions such as South Korea, Vietnam, and Australia, with annual export sales of starch exceeding 2,000 tons. Inspection and overseas sales further confirm the stability and reliability of the products.
An annual production capacity of 6,000 tons of sweet potato vermicelli is the result of the synergistic effect of raw materials, technology, production capacity, and qualifications.
