Abstract The Tofu Industry in Salatiga is a tofu producer that has been operating since April 2024, focusing on premium quality silk tofu production. In its production process, this generates 4,000 liters of liquid waste and 290 kg of solid waste in each production cycle. Although it has a Wastewater Treatment Plant (WWTP) to manage liquid waste, the company has not optimally managed solid waste (tofu pulp). Additionally, the company has never conducted a comprehensive Green Supply Chain Management performance measurement. Thus, it is essential to do a comprehensive Green Supply Chain Management performance measurement with the goal of analysing GSCM performance as a reference, assessment tool, and enhancement of the business’s GSCM performance. The methods are used Analytical Hierarchy Process and Green Supply Chain Operation Reference. From 19 key performance indicators, 17 relevant and valid indicators were obtained for measurement. The results indicate that GSCM performance value the Tofu Industry in Salatiga reached 92.10 (excellent category), with the highest contributions from the indicators order provided by the firm without any issues (16.38), product fault during manufacture (16.24), and conformity to the manufacturing schedule (15.46). However, there are still two KPIs that require improvement priorities, namely recycling rate for solid waste production (value 0%) and number of problematic machines (value 25%). The process weight distribution shows the dominance of the make process (45%), followed by deliver (26%), plan (14%), source (11%), and return (3%). The solutions proposed in this research include developing a tofu pulp processing system into value-added products, implementing a preventive maintenance system for dynamo machines, improving demand forecasting accuracy, optimizing resource efficiency, and strengthening collaboration with stakeholders.
Ernawati et al. (Mon,) studied this question.