> For the complete documentation index, see [llms.txt](https://docs.fiinpro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fiinpro.com/english/methodology/industry-classification.md).

# Industry classification

The document outlines the methodology for sector classification of listed companies in the Vietnamese stock market. This document also serves as a contract between the user and the developer, and is considered as input for the analysis, design, and testing of FiinPro-X products. The publication of the sector classification methodology increases transparency and enhances the effectiveness of information usage provided by FiinPro-X to its users.