Since its establishment in 2011, SEEK Bio Technology (Shanghai) Co., Ltd. has deeply embedded the concept of sustainable development into its corporate DNA. With the mission of "making the world’s soil free of pollution", the company has actively committed itself to advancing the transformation of the agricultural circular economy. We fully recognize that traditional agricultural models face challenges such as resource depletion, environmental pollution, and soil degradation, which urgently require innovative solutions. Therefore, the company focuses on technological innovation and industrial integration, striving to build a closed-loop system of "resources–products–regenerated resources", contributing core strength to the development of green, low-carbon agriculture and circular economy industries.

       Our core driving force lies in three independently developed technology systems. First, energy-saving pyrolysis carbonization technology is the starting point of our circular chain. Through efficient carbonization processes, we transform agricultural and forestry residues — such as straw, fruit tree branches, and tobacco waste — that would otherwise be burned or discarded into highly stable biochar. This not only significantly reduces air pollution and greenhouse gas emissions from open burning, but also achieves valuable carbon sequestration. Taking our Shanghai Jinshan base as an example, this technology processes tens of thousands of tons of organic waste annually, with a conversion rate exceeding 90%. Application to farmland at a rate of one hectare can reduce approximately 2.3 tons of CO₂ equivalent emissions, while improving soil structure and fertility.

       Second, based on the unique properties of biochar as a carrier, we have successfully developed a series of biochar-based fertilizer products, including biochar organic fertilizers and carbon-enhanced water-soluble fertilizers. These products have obtained internationally recognized organic certifications such as Nanjing OFDC, EU IMO, USDA, and Japan JAS, and are sold in over 30 countries and regions. More importantly, in practical applications, they can replace 20%–30% of conventional fertilizers, significantly improving crop yield and quality, particularly for high-value crops such as tea and fruits and vegetables.

       Third, we have integrated biochar with specific functional microbial inoculants to form a unique soil remediation system. This system has been successfully applied in areas of Guizhou and Yunnan facing heavy metal pollution. Through the synergistic effect of adsorption passivation and microbial degradation, it effectively reduces crop uptake of heavy metals by 40%–60%, providing an effective pathway for safe utilization and ecological restoration of contaminated farmland.

       Technological breakthroughs are the foundation, but achieving a complete industrial loop is the true essence of the circular economy. SEEK actively constructs and implements a complete circular industrial chain. On the raw material side, we have established a stable agricultural and forestry waste collection network in Jinshan (Shanghai) and Anji (Zhejiang), signing long-term collection agreements with numerous farms and forest farms to ensure sustainable raw material supply. On the transformation side, we have invested in intelligent production lines that efficiently convert collected waste into high-value biochar and biochar-based fertilizers. On the product application side, these products are widely applied in farmland soil improvement, crop nutrition enhancement, and contaminated soil remediation, ultimately returning nutrients to the soil and completing a cycle of “from soil, back to soil.”

       A typical success story is our cooperation project with Guizhou Bijie Tobacco Company. This pioneering project fully carbonizes tobacco stems and other residues from tobacco cultivation and processing. The resulting biochar fertilizer is then applied to improve the quality of tobacco field soil. This not only completely solves the long-standing problem of pollution caused by tobacco straw burning, but also significantly enhances tobacco leaf quality and aroma substances, and restores the soil microecological balance damaged by continuous cropping. The project was recognized by the China National Tobacco Corporation as the “Biochar Engineering Center for the Tobacco Industry” and has been successfully promoted in Yunnan, Hubei, and other tobacco-growing regions, becoming a national demonstration model of circular economy.

       As an active promoter of the industry, SEEK deeply understands that building a sound industrial ecosystem is essential. We actively participate in policy research, cooperating with organizations such as the Shanghai Energy Conservation and Emission Reduction Center to provide data support and decision-making references for local agricultural waste resource utilization policies. In standard-setting, we have led the drafting of the Group Standard for Biochar-Based Organic Fertilizers, filling a gap in domestic standards and laying a foundation for standardized industry development. At the same time, we are the first Chinese standing director unit of the International Biochar Initiative (IBI), dedicated to bringing China’s innovation in agricultural circular economy to the global stage and strengthening international cooperation and exchange. For example, at the 2025 Yangtze River Delta Circular Economy Technology Seminar, we jointly released the “Agricultural Carbon Sequestration Methodology” with research institutes, actively exploring ways to incorporate agricultural carbon sequestration results into the carbon trading market, opening a new path for realizing the value of agricultural carbon sinks.

       Looking ahead, SEEK Bio Technology will continue to deepen exploration and practice in the circular economy field. We will continue to invest in technology R&D to optimize carbonization processes, reduce energy consumption, and improve the nutrient utilization efficiency of biochar fertilizers. In terms of capacity layout, we plan to expand new resource recycling bases in the Yangtze River Delta and other major agricultural production areas nationwide, especially promoting the “straw carbonization return to field” model in Northeast China’s black soil protection. We will accelerate the improvement of biochar carbon footprint accounting systems and actively explore a “carbon-inclusive” mechanism for fertilizer substitution. Our goal is to achieve both environmental and economic benefits.

       Our vision is clear and determined: to continuously build and optimize a “from soil, back to soil” perpetual circular system, using technology to break through the transformation path of “waste–resources–products”, making every farmland a fertile ground for green development and a valuable carbon sink. SEEK believes that through relentless innovation and practice, we can contribute indispensable Chinese wisdom and solutions to sustainable agricultural development, the prosperity of the circular economy, and global ecological improvement.