**5. Conclusions**

With the development of the CBM industry in various countries around the world, a mature and complete risk assessment system is needed to accurately determine the overall risk level and local risk weakness of CBM development projects. This paper provides a reference for government policy formulation, investor project feasibility analyses, insurance company insurance premium rate determination, and project operator risk perception improvement ability. This study fills the gap in the literature concerning the above requirements. The main contributions of this paper are as follows:


**Author Contributions:** Data curation, W.W.; Formal analysis, W.W., S.L. and Y.Z.; Methodology, W.W. and Y.Z.; Supervision, S.L.; Writing—original draft, W.W.; Writing—review and editing, Y.Z. and S.M.

**Funding:** This research was funded by [National Natural Science Foundation of China], grant number [51474151], and [PICC disaster research fund], grant number [D14-01].

**Conflicts of Interest:** The authors declare no conflicts of interest.
