Located in Pingtung County, Dong Hai Feng Agricultural Circulation Park under the Taiwan Sugar Corporation has been built into a demonstration park with multiple features, including high-tech pig farming, waste-to-energy, green energy and environmental protection, and environmental education. The subsequent 13 pig farms of Taiwan Sugar Corporation also used this as a benchmark, upgrading the original traditional open pig houses to modern closed water curtain pig houses, and introducing biogas power generation equipment to properly collect and utilize the biogas produced by the fermentation of pig manure and urine, converting the biogas into green energy, reducing the impact of the pig farming industry on the environment. It is hoped that it can play a leading role and encourage more related industries to be willing to invest in the biomass energy industry, improve efficiency, implement resource recycling, and help promote the sustainable development of domestic animal husbandry.

The "Agricultural Circulation Pig Farm Renovation Investment Plan" for 13 pig farms is the first large-scale investment and renovation project of TSC since the development of the livestock business. Through the renovation, the wastewater and waste treatment processes in the farms will be strengthened and controlled, and the operating procedures will be reviewed and improved. The pig manure and urine in the pig farms will be collected and divided into four treatment paths. The purpose is to let all parties redefine the pig farming industry and lead the development, improvement and upgrading of the domestic pig farming industry.

This project involves as many as 13 pig farms and also the needs of different feeding stages, and the entire project is huge and complicated. Therefore, is divided into two phases of construction. Phase I, consisting of six facilities, was gradually completed, entered trial operation and entered the acceptance stage between 2025 and 2026. The pigs were successively put into the 7 pig farms renovated in the second phase for trial operation since 2026, and the farms are currently in the trial-run phase.

TSC has been engaged in livestock breeding since 1952, making it a pioneer in pig farming in Taiwan. To address environmental issues related to pig farming and in response to the government's 5+2 industrial innovation plan, TSC has incorporated ecological balance, environmental protection, and green concepts into its livestock farms, driving the transformation of the pig farming industry. Our "Dong-Hai-Feng Agricultural Circulation Park" is the first agricultural and livestock farm in Taiwan that combines green energy, water recycling, and biological recycling, and is also the world's first livestock farm to obtain BS 8001 international standard certification for circular economy. With a vision of "zero waste, zero emissions, and zero accidents", it practices emission reduction, deodorization, and resource recycling, successfully overturning the traditional NIMBY (Not In My Backyard) perception of pig farms, and in 2024, it won the 6th " National Enterprise Environmental Protection Award- Silver Award".

The park incorporates negative pressure water curtain enclosed livestock housing, automatic feeding, ventilation and deodorization systems, and a smart management system. Combined with raised slatted floors and a manure scraping system, water usage for cleaning pig housing is reduced by more than 75%. Pig manure and urine are transported via closed pipelines to a biogas center for anaerobic digestion, generating biogas for power generation. The biogas residue is combined with sawdust and waste mushroom bags to produce organic fertilizer, and the biogas slurry is treated and recycled for irrigation and park water use, effectively realizing the resource utilization of livestock waste. Solar panels are installed on the roofs of the livestock housing, providing cooling, power generation, and carbon reduction benefits, supporting the domestic renewable energy transition.

Moreover, this circulation park obtained the Environmental Education Certification in 2022, making it the first environmental education site in Taiwan with the background of green energy pig farming, continuously promoting knowledge of animal welfare, smart animal husbandry, odor reduction, and manure resource utilization. In 2025, it received 1,408 visitors and provided environmental education training, and was awarded the Excellence Award in the preliminary review of the 10th National Environmental Education Award.