Evaluation of the circular economy model at Endota Technology Co., Ltd.
Published: August 8, 2026
Abstract
This paper evaluates the circular economy model implemented at Endota Technology Co., Ltd., a small and medium-sized agricultural enterprise that uses black soldier flies to convert organic by-products into larvae, frass or organic fertilizer, and biological products. The data include operational records from 2023 to 2025, a survey of 52 stakeholders, interviews, field observations, and internal documents. The results show that the volume of by-products treated increased from 310 tonnes to 560 tonnes, representing an increase of 250 tonnes or 80.6%. Revenue increased by VND 1,908.6 million, equivalent to 109.3% compared with 2023. However, profit after tax in 2025 decreased by VND 33.3 million, or 17.7%, compared with 2024, indicating that scale expansion does not automatically improve financial performance. The paper proposes standardizing operating procedures, batch codes, production logs, circularity key performance indicators, quality control, and value-chain linkages to improve the effectiveness of the model.
Ellen MacArthur Foundation. (2013). Towards the circular economy: Economic and business rationale for an accelerated transition.
2.
Ellen MacArthur Foundation. (2015). Growth within: A circular economy vision for a competitive Europe.
3.
Diener, S., Studt Solano, N. M., Roa Gutiérrez, F., Zurbrügg, C., & Tockner, K. (2011). Biological treatment of municipal organic waste using black soldier fly larvae. Waste and Biomass Valorization, 2(4), 357-363. https://doi.org/10.1007/s12649-011-9079-1
FAO. (2014). Insects to feed the world: Conference report. Food and Agriculture Organization of the United Nations.
5.
Flick, U. (2022). An introduction to qualitative research. SAGE Publications.
6.
International Organization for Standardization. (2024a). ISO 59004:2024 Circular economy - Vocabulary, principles and guidance for implementation.
7.
International Organization for Standardization. (2024b). ISO 59010:2024 Circular economy - Guidance on the transition of business models and value networks.
8.
International Organization for Standardization. (2024c). ISO 59020:2024 Circular economy - Measuring and assessing circularity performance.
9.
OECD. (2023). OECD SME and Entrepreneurship Outlook 2023. OECD Publishing.
10.
Ridder, H. G. (2020). Case study research: Approaches, methods, contribution to theory. Rainer Hampp Verlag.
11.
Saunders, M., Lewis, P., & Thornhill, A. (2019). Research methods for business students. Pearson.
12.
Velasco-Muñoz, J. F., Aznar-Sánchez, J. A., López-Felices, B., & Román-Sánchez, I. M. (2022). Circular economy in agriculture: An analysis of the state of research based on the life cycle. Sustainable Production and Consumption, 34, 60-70.