Di tengah meningkatnya kompleksitas dan disrupsi global dalam rantai pasok, seperti pandemi dan konflik geopolitik, perusahaan dituntut untuk meningkatkan kinerja rantai pasok agar mampu merespons dinamika permintaan pasar dengan cepat dan efisien. Penelitian ini bertujuan untuk menganalisis pengaruh information sharing yang didasari oleh variabel anteseden trust dan commitment, serta collaboration terhadap kinerja rantai pasok perusahaan, dengan supplier responsiveness sebagai variabel mediasi. Penelitian ini menggunakan pendekatan kuantitatif melalui metode survei terhadap 326 responden profesional di Indonesia di bidang rantai pasok yang aktif berkoordinasi dengan supplier. Metode sampling yang digunakan adalah purposive sampling dengan menggunakan kuesioner berbasis skala Likert (1-5). Pertanyaan yang diberikan kepada responden adalah tiga pertanyaan screening, 12 pertanyaan deskripsi data responden, dan 56 pertanyaan yang berkaitan dengan variabel penelitian. Analisis data dilakukan dengan menggunakan Partial Least Squares Structural Equation Modeling (PLS-SEM) dengan aplikasi SmartPLS 4. Hasil penelitian menunjukkan bahwa trust dan commitment berpengaruh signifikan terhadap information sharing, yang selanjutnya variabel collaboration mampu meningkatkan supplier responsiveness. Supplier responsiveness terbukti memediasi secara positif hubungan antara variabel tersebut terhadap kinerja rantai pasok. Temuan ini memberikan implikasi bahwa perusahaan perlu membangun kepercayaan, memperkuat komitmen, dan memperluas kolaborasi strategis dengan supplier untuk mendorong responsivitas supplier dan meningkatkan kinerja rantai pasok secara berkelanjutan. / Amid increasing global supply chain complexity and disruptions—such as pandemics and geopolitical conflicts—companies are required to enhance their supply chain performance to respond swiftly and efficiently to dynamic market demands. This study aims to analyze the influence of information sharing, driven by the antecedent variables of trust and commitment, as well as collaboration, on company supply chain performance, with supplier responsiveness as a mediating variable. A quantitative approach was employed through a survey of 326 supply chain professionals in Indonesia who actively coordinate with suppliers. The sampling method used was purposive sampling, and the data were collected via a Likert-scale-based questionnaire (1–5). Respondents answered three screening questions, 12 demographic questions, and 56 questions related to the study variables. Data analysis was conducted using Partial Least Squares Structural Equation Modeling (PLS-SEM) application namely SmartPLS 4. The findings indicate that trust and commitment have a significant positive effect on information sharing, while collaboration significantly enhances supplier responsiveness. Furthermore, supplier responsiveness was found to positively mediate the relationship between these variables and supply chain performance. These results suggest that companies must foster trust, strengthen commitment, and develop strategic collaborations with suppliers to enhance supplier responsiveness and sustainably improve overall supply chain performance.