Glass need to beremelted, EVA (Ethylene Vinyl Acetat) need thermal treatment, and aluminum need remetling and chemical treatment before they may substitute virgin materials in the module assembling process. Meanwhile, chemical treatment is necessary for silicon and silver before recycling in polysilicon production and multi-Si PV cell respectively. When utilizing the inventory data for multi-Si PV modules, ensure that the mean values are used if different data sources are encountered for specific materials. This guidance is necessary to maintain consistency and reliability in life cycle assessments. Data sources include academic literature, Environmental Impact Assessment Statements (EIAS), and industry reports pertinent to Chinese photovoltaic enterprises. For detailed LCA modelling, pay attention to geographical and technological relevance, validating and updating the data when applicable to ensure accurate representation of the assessed process.